Bulletins

BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ELECTRICAL SYSTEM
08089-B11/01/200808089-C10027804General motors corp: special coverage adjustment; analog onstar deactivation. *pe updated 2/17/09. *pe02/09/2009
04084501009/01/200410011074Various interior electrical concerns, ip gauges/lighting inoperative, hvac controls inoperative, blower motor inoperative, radio inoperative, flasher inoperative. *tt12/28/2004
ELECTRICAL SYSTEM - SOFTWARE
08089-B11/01/200808089-C10027804General motors corp: special coverage adjustment; analog onstar deactivation. *pe updated 2/17/09. *pe02/09/2009

Consumer Complaints

Fail datemilesoccurencesPurchase date
ELECTRICAL SYSTEM
01/09/2013752341
 2004 chevrolet trailblazer ext with 76,500 miles on it. while driving to work i noticed the oil pressure gauge was reading maximum. i immediately pulled over in the dark on a busy hwy to check oil and it was full. then approx 2 weeks later the oil pressure gauge is pointing down and stays there. now the speedometer is reading 80 mph even when stopped. this is a huge safety issue. i have serious doubts as to whether the gas and water temp gauge is reading correctly. there are numerous complaints already filed about this model and many other chevrolet models. recalls have been made on some models for this problem, but not this one. chevrolet needs to recall this model asap and correct the infamous problem that they are well aware of. this is a very costly repair and one that the consumer should not have to pay for. *tr
01/09/201375234
 2004 chevrolet trailblazer ext with 76,500 miles on it. while driving to work i noticed the oil pressure gauge was reading maximum. i immediately pulled over in the dark on a busy hwy to check oil and it was full. then approx 2 weeks later the oil pressure gauge is pointing down and stays there. now the speedometer is reading 80 mph even when stopped. this is a huge safety issue. i have serious doubts as to whether the gas and water temp gauge is reading correctly. there are numerous compaints already filed about this model and many other chevrolet models. recalls have been made on some models for this problem, but not this one. chevrolet needs to recall this model asap and correct the infamous problem that they are well aware of. this is a very costly repair and one that the consumer should not have to pay for.
07/02/2012120000
 All gauges on control panel not working, but all service lights come on check engine, abs seat belt, reduce power, battery lights. speed and fuel are impossible to know as well as warnings to observe from lights. 2004 chevrolet trailblazer, speedometer will show a faster speed than you moving or will go to 0 while on the freeway. the tach has the same problem. this is a serious safety issue and it should be recalled now. i heard that they had the same issue on pick-ups and they were recalled. most instrument backlights have burned out preventing the speedometer and other gauges from being seen at night. very dangerous. quick search on internet results in a severe epidemic of this problem with all gm suv's. a class action lawsuit resulted in a nationwide recall for this problem for all similar vehicles but not the chevy trailblazer or gmc envoy. this seems to be a criminal act by gm. something needs to be done to protect owners of these vehicles. driving down highway headlights go out..while driving at night the low beam lights went out, i had to drive home with high beams on, http://www.aboutautomobile.com/complaint/2004/chevrolet/trailblazer/electrical+system check out all these other complaints there are hundreds of them and i am one of many. this is so dangerous and a safety hazard to others as well, please get us a recall on these cars the expenses are tremendous.
09/02/2012613841
 The speedometer started to malfunction while driving 40 mph north bound on davis blvd. the speedometer was reading 80 mph then when stopped it was still reading 80 mph. it then moved past the gauge not allowing to know my actual speed. this to me is a car safety issue because we never know how fast we are going. the gas gauge has been malfunctioning for more that 24 months. the caution light (yellow) turns on when you need to fill the tank so we have been using this light to fill the car with gas. the gauge needs to be repaired. since the car is not abused we fill this is something which should have lasted the regular 100,000 miles before there was a problem. the warranty period is over. from talking to other users and repeated searches online it seem to be a regular failure item. i believe it should be repaired by general motors corporation. many drivers have had to spend lots of money to have this item fixed in less than average mean times between failure of (100,000 miles). *tr
09/02/201261384
 The speedometer started to malfunction while driving 40 mph north bound on davis blvd. the speedometer was reading 80 mph then when stopped it was still reading 80 mph. it then moved past the gauge not allowing to know my actual speed. this to me is a car safety issue because we never know how fast we are going. the gas gauge has been malfunctioning for more that 24 months. the caution light (yellow) turns on when you need to fill the tank so we have been using this light to fill the car with gas. the gauge needs to be repaired. since the car is not abused we fill this is something which should have lasted the regular 100,000 miles before there was a problem. the warranty period is over. from talking to other users and repeated searches online it seem to be a regular failure item. i believe it should be repaired by general motors corporation. many drivers have had to spend lots of money to have this item fixed in less than average mean times between failure of (100,000 miles).
06/01/20121
 The electrical system on my 2004 trailblazer ext is not operating properly. the tachometer doesn't register, nor does the battery gauge and uncertain if the reading on the oil gauge is accurate. the fuel gauge is not operable, the needle is either pass e(empty) or pass f (full), i'm constantly re-fueling for fear of running out of gas. when first starting the engine, the speed indicator might register correctly, but then it falls below 0 mph while traveling speeds of 35 to 55 mph and other times it may indicate speeds in excess of 100 mph. problems with the speedometer first started in june 2012 , i used a gps to keep track of traveling speed. afterwards, the other gauges started to malfunction. no parts have been repaired or replaced.very concerned about safety issues, as i occasionally transport my grandchildren to appointments. has chevrolet made any amendments to correct these problems? assistance needed please. *tr
01/04/2012146000
 Car felt stuck in gear, wouldn't accelerate, low on transmission fluid. added more fluid, replaced speed sensor, camshaft & crankshaft sensors. still having issues with rpms going high, car slamming from one gear into another. also cannot run heat while driving, fan draws power & causes engine to stall out. car also burning through gas very quickly.
11/08/201143400
 Vehicle was being driven when all dash gauges failed. particularly concerning was the failure of the speedometer. gm has admitted that other vehicles have had this problem and have paid for and installed replacement dash clusters on some models. the 2004 trailblazer is not covered as there has not been enough occurrences of instrument cluster failure reported.
01/09/2010
 The rpm gauge, battery gauge and the fuel gauge stopped working. first the rpm gauge stopped and then about a year later the battery gauge stopped and last was the fuel gauge that stopped. the fuel gauge stopped working just a couple of weeks after the battery gauge. i am also having problems with the daytime running lights not staying on periodically. the daytime running lights will go out about twice a year and mainly at night.
06/24/201081524
 The instrument cluster stopped working, only the temp gauge and the fuel gauge works... the speedometer, tachometer, oil pressure guages do not work.... i believe general motors needs to issue a recall on this as this is a common problem with these vehicles...
01/09/2010
 The rpm gauge, battery gauge and the fuel gauge stopped working. first the rpm gauge stopped and then about a year later the battery gauge stopped and last was the fuel gauge that stopped. the fuel gauge stopped working just a couple of weeks after the battery gauge. i am also having problems with the daytime running lights not staying on periodically. the daytime running lights will go out about twice a year and mainly at night.
06/24/201081524
 The instrument cluster stopped working, only the temp gauge and the fuel gauge works... the speedometer, tachometer, oil pressure guages do not work.... i believe general motors needs to issue a recall on this as this is a common problem with these vehicles...
01/09/2010
 The rpm gauge, battery gauge and the fuel gauge stopped working. first the rpm gauge stopped and then about a year later the battery gauge stopped and last was the fuel gauge that stopped. the fuel gauge stopped working just a couple of weeks after the battery gauge. i am also having problems with the daytime running lights not staying on periodically. the daytime running lights will go out about twice a year and mainly at night.
06/24/201081524
 The instrument cluster stopped working, only the temp gauge and the fuel gauge works... the speedometer, tachometer, oil pressure guages do not work.... i believe general motors needs to issue a recall on this as this is a common problem with these vehicles...
01/09/2010
 The rpm gauge, battery gauge and the fuel gauge stopped working. first the rpm gauge stopped and then about a year later the battery gauge stopped and last was the fuel gauge that stopped. the fuel gauge stopped working just a couple of weeks after the battery gauge. i am also having problems with the daytime running lights not staying on periodically. the daytime running lights will go out about twice a year and mainly at night.
06/24/201081524
 The instrument cluster stopped working, only the temp gauge and the fuel gauge works... the speedometer, tachometer, oil pressure guages do not work.... i believe general motors needs to issue a recall on this as this is a common problem with these vehicles...
01/24/2011
 My 2004 chevy trailblazer has an insturmant panel that stopped working. i feel this is very unsafe because i don't know how fast i am going, what my oil pressure is, the temperature of my car, or how much gas i have. i contacted a repair shop but it is over $1000 to replace the panel and there is no guarantee that this won't happen again. apparently i am being told this is a problem that is very common in this year and make but there is not a recall for it. i don't understand why
04/01/201141000
 2004 chev trailblazer dash cluster. i have 43,000 miles on my vehicle and the dash guages went out. they started to work after about 10 minutes of driveing and now they come on only about 1 out of 4 trips. i searched the internet and found a lot of owners complaining about the same proble. why is this not a recall? please help if you can.
02/15/201187000
 Instrument cluster failure starting with tachometer then speedometer. at 90,000 +/- miles always have intermittent / obviously wrong info from tachometer (ussualy past 7000) and speedometer (always reads <20 mph)
05/01/200850000
 On our 2004 chevrolet trailblazer the only gauge that works all the time is the speedometer. most of the other gauges
06/01/2010
 The speedodomoter in my 2004 chevy trailblazer ext completely stopped working about 6 months about. we have been dealing with this issue and just praying we do not get a speeding ticket. now the check engine light continues to stay on even when reset. i am not being told i need to check the fuse which was unsuccessful. i can only imagine if the next thing to go will be all the electonics in the dashboard. this seriously needs to be a recall item!
01/19/201166000
 The speedometer on my 2004 chevy trailblazer ext operates incorrectly. the speed indicator sticks, goes over 120 miles an hour and stays there, and sometimes does not move at all. this is an everyday problem.
12/21/201080000
 1. fuel tank failure, with gas smell after fill up. 2. speedometer stopped working 3. temperature gage stopped working
12/16/201068500
 Instrument cluster panel issue with tachometer actually exceeding 7000rpm while vehicle is idling. i did a quick search online and found that there have been many complaints about the cluster panel malfunctioning. it was recommended that i file via nhtsa to see what may be able to be done or if there was already a formal recall on this particular defect. i have tried removing the cluster panel fuse from the fuse box then starting vehicle then turning vehicle off and replacing the fuse to recalibrate it. my understanding from the research is that the stepper motors used in the panel are faulty.
06/24/201087000
 Electrical - all gauges are not working and the speedodomoter quits working while driving.
12/16/201068500
 Instrument cluster panel issue with tachometer actually exceeding 7000rpm while vehicle is idling. i did a quick search online and found that there have been many complaints about the cluster panel malfunctioning. it was recommended that i file via nhtsa to see what may be able to be done or if there was already a formal recall on this particular defect. i have tried removing the cluster panel fuse from the fuse box then starting vehicle then turning vehicle off and replacing the fuse to recalibrate it. my understanding from the research is that the stepper motors used in the panel are faulty.
06/24/201087000
 Electrical - all gauges are not working and the speedodomoter quits working while driving.
12/16/201068500
 Instrument cluster panel issue with tachometer actually exceeding 7000rpm while vehicle is idling. i did a quick search online and found that there have been many complaints about the cluster panel malfunctioning. it was recommended that i file via nhtsa to see what may be able to be done or if there was already a formal recall on this particular defect. i have tried removing the cluster panel fuse from the fuse box then starting vehicle then turning vehicle off and replacing the fuse to recalibrate it. my understanding from the research is that the stepper motors used in the panel are faulty.
06/24/201087000
 Electrical - all gauges are not working and the speedodomoter quits working while driving.
12/16/201068500
 Instrument cluster panel issue with tachometer actually exceeding 7000rpm while vehicle is idling. i did a quick search online and found that there have been many complaints about the cluster panel malfunctioning. it was recommended that i file via nhtsa to see what may be able to be done or if there was already a formal recall on this particular defect. i have tried removing the cluster panel fuse from the fuse box then starting vehicle then turning vehicle off and replacing the fuse to recalibrate it. my understanding from the research is that the stepper motors used in the panel are faulty.
06/24/201087000
 Electrical - all gauges are not working and the speedodomoter quits working while driving.
12/23/201077000
 My speedometer has stopped working on my 2004 chevy trailblazer. half the time it sits on 0 the other half it goes 120mph. i never have a clue how fast i am going.
12/16/201068500
 Instrument cluster panel issue with tachometer actually exceeding 7000rpm while vehicle is idling. i did a quick search online and found that there have been many complaints about the cluster panel malfunctioning. it was recommended that i file via nhtsa to see what may be able to be done or if there was already a formal recall on this particular defect. i have tried removing the cluster panel fuse from the fuse box then starting vehicle then turning vehicle off and replacing the fuse to recalibrate it. my understanding from the research is that the stepper motors used in the panel are faulty.
06/24/201087000
 Electrical - all gauges are not working and the speedodomoter quits working while driving.
12/23/201077000
 My speedometer has stopped working on my 2004 chevy trailblazer. half the time it sits on 0 the other half it goes 120mph. i never have a clue how fast i am going.
07/15/2009100000
 2004 chevy trailblazer speedometer and gauges started working erratically around summer 2009. speedo and gauges stick or peg out daily. gm does not recognize this as their problem yet there are hundreds, maybe thousands, of blogs on the internet of this same problem.
12/23/201077000
 My speedometer has stopped working on my 2004 chevy trailblazer. half the time it sits on 0 the other half it goes 120mph. i never have a clue how fast i am going.
07/15/2009100000
 2004 chevy trailblazer speedometer and gauges started working erratically around summer 2009. speedo and gauges stick or peg out daily. gm does not recognize this as their problem yet there are hundreds, maybe thousands, of blogs on the internet of this same problem.
11/15/200880000
 My 2004 chevrolet trailblazer ext has the same problems all the other trailblazers have. poor design and subpar manufacturing of parts in foreign countries have resulted in electrical problems that cannot be fixed.gauges and lights randomly going crazy,heat and a/c may or may not operate,vehicle may or may not start,key may or may not release from ignition. ignition switch has been replaced multiple times in last two years and often brand new ignitions straight out of the box from the dealer parts department are no good. as other gm vehicles with the same exact problems have been recalled one would think trailblazer owners should deserve the same courtesy.clearly gm disagrees. i guess when you know uncle sam will always be there to bail you out you can do what you want and still sleep good at night. i wouldnt know . as the parent of four children this is a serious safety issue with me. i can no longer drive it as i know it is not dependable.
01/01/200840000
 All gauges fluctuate constantly or stop working at times. you never know how fast you are going or if the car has appropriate fluids. this is a very dangerous situation and i have found via the internet there have been numerous complaints about this issue. there is definitely some type of electrical problem with this vehicle.
11/15/200880000
 My 2004 chevrolet trailblazer ext has the same problems all the other trailblazers have. poor design and subpar manufacturing of parts in foreign countries have resulted in electrical problems that cannot be fixed.gauges and lights randomly going crazy,heat and a/c may or may not operate,vehicle may or may not start,key may or may not release from ignition. ignition switch has been replaced multiple times in last two years and often brand new ignitions straight out of the box from the dealer parts department are no good. as other gm vehicles with the same exact problems have been recalled one would think trailblazer owners should deserve the same courtesy.clearly gm disagrees. i guess when you know uncle sam will always be there to bail you out you can do what you want and still sleep good at night. i wouldnt know . as the parent of four children this is a serious safety issue with me. i can no longer drive it as i know it is not dependable.
01/01/200840000
 All gauges fluctuate constantly or stop working at times. you never know how fast you are going or if the car has appropriate fluids. this is a very dangerous situation and i have found via the internet there have been numerous complaints about this issue. there is definitely some type of electrical problem with this vehicle.
11/15/200880000
 My 2004 chevrolet trailblazer ext has the same problems all the other trailblazers have. poor design and subpar manufacturing of parts in foreign countries have resulted in electrical problems that cannot be fixed.gauges and lights randomly going crazy,heat and a/c may or may not operate,vehicle may or may not start,key may or may not release from ignition. ignition switch has been replaced multiple times in last two years and often brand new ignitions straight out of the box from the dealer parts department are no good. as other gm vehicles with the same exact problems have been recalled one would think trailblazer owners should deserve the same courtesy.clearly gm disagrees. i guess when you know uncle sam will always be there to bail you out you can do what you want and still sleep good at night. i wouldnt know . as the parent of four children this is a serious safety issue with me. i can no longer drive it as i know it is not dependable.
01/01/200840000
 All gauges fluctuate constantly or stop working at times. you never know how fast you are going or if the car has appropriate fluids. this is a very dangerous situation and i have found via the internet there have been numerous complaints about this issue. there is definitely some type of electrical problem with this vehicle.
11/01/2010
 We currently own three chevrolet trailblazers - 2004, 2005, 2006. on each on the three trailblazers, the dashboard instruments have failed, including the speedometer, oil pressure gage, fuel gage, and engine rpm instrument. the driver no longer has the ability to verify how fast the vehicle is traveling, or potential problems with the engine, or the remaing fuel in the gas tank. in taking the vehicles to the dealer, they insist that it will be a significant repair requiring diagnosis and removel of the entire dashboard cluster and estimate the costs to be well over $1500 for the repair. since the same problem has occurred on all three of our currently owned trailblazers, this suggests a manufacturers defect with the entire dashboard cluster.
03/16/200685000
 Speedometer, tachometer and oil pressure gague all stopped working on 2004 chevy trailblazer.
04/01/2010
 My check engine light started coming on and staying on; then my oil guage started going whacky, from one end to the other; next, my gas guage wasn't reading correctly and i had to keep putting gas in the car just to make sure i didn't run out because you couldn't trust the guage. the guages often correct themselves out of the blue and then they start messing up again with no warning. today, my speedometer read 0 while i was driving about 40 mph. it stayed at 0 until i stopped at a traffic light. when i took off, it went up to about 45 when i was only going about 25-30. i have no idea how fast i am really going, which is scarey and dangerous. i am also very frazzled by all the gauges reading different every day when i am driving 40 miles back and forth to work wondering if and when my car is going to break down on the highway or in heavy traffic.
12/12/200990000
 Tl- the contact owns a 2004 chevrolet trailblazer ext. while the contact was driving at various speeds, unexpectedly the speed odometer and other gauges became inoperative. the vehicle was taken to an independent mechanic for diagnosis where they informed that the failure was contributed to the instrument panel cluster. the vehicle was not repaired. the failure mileage was approximately 90,000. js
04/01/2010
 My check engine light started coming on and staying on; then my oil guage started going whacky, from one end to the other; next, my gas guage wasn't reading correctly and i had to keep putting gas in the car just to make sure i didn't run out because you couldn't trust the guage. the guages often correct themselves out of the blue and then they start messing up again with no warning. today, my speedometer read 0 while i was driving about 40 mph. it stayed at 0 until i stopped at a traffic light. when i took off, it went up to about 45 when i was only going about 25-30. i have no idea how fast i am really going, which is scarey and dangerous. i am also very frazzled by all the gauges reading different every day when i am driving 40 miles back and forth to work wondering if and when my car is going to break down on the highway or in heavy traffic.
12/12/200990000
 Tl- the contact owns a 2004 chevrolet trailblazer ext. while the contact was driving at various speeds, unexpectedly the speed odometer and other gauges became inoperative. the vehicle was taken to an independent mechanic for diagnosis where they informed that the failure was contributed to the instrument panel cluster. the vehicle was not repaired. the failure mileage was approximately 90,000. js
04/01/2010
 My check engine light started coming on and staying on; then my oil guage started going whacky, from one end to the other; next, my gas guage wasn't reading correctly and i had to keep putting gas in the car just to make sure i didn't run out because you couldn't trust the guage. the guages often correct themselves out of the blue and then they start messing up again with no warning. today, my speedometer read 0 while i was driving about 40 mph. it stayed at 0 until i stopped at a traffic light. when i took off, it went up to about 45 when i was only going about 25-30. i have no idea how fast i am really going, which is scarey and dangerous. i am also very frazzled by all the gauges reading different every day when i am driving 40 miles back and forth to work wondering if and when my car is going to break down on the highway or in heavy traffic.
12/12/200990000
 Tl- the contact owns a 2004 chevrolet trailblazer ext. while the contact was driving at various speeds, unexpectedly the speed odometer and other gauges became inoperative. the vehicle was taken to an independent mechanic for diagnosis where they informed that the failure was contributed to the instrument panel cluster. the vehicle was not repaired. the failure mileage was approximately 90,000. js
09/12/201084680
 My 2004 chevy trailblazer has multiple lights on -brakes, airbag,battery, service engine soon. all the gauges on the right-oil, gas, battery are below the red line as if the car is off. the car locked itself with the keys in it while it was turned off-had to call emergency road service to unlock. the mechanic states all the lights that are on are actually functioning and that the dashboard cluster module is causing the problem. this is a major safety issue and it appears multiple people have had the same type problem with trailblazers-why hasn't there been a recall re: this issue?
08/31/2010120000
 Check engine light - for over one year now, and 4 various mechanics, no once can figure out why my check engine light comes on. i have repalced two air sensors (actually 3 - one was bad)... i have spent close to $1,000 to get this fixed - but the dam light continues to go on (intermittently) sometimes it's on for a month - off a day - on two weeks - there is no pattern. the last time the light came on, my car began stalling in traffic and stop signs. last mechanic spent 5 hours tracing all the codes back - nothing. next day had another mechanic check codes and the engine running cool as well as a few others showed up. if no one can figure this out - where is the recourse. i feel like i am being scammed over and over. i stalled on rt. 24 slowing down in traffic - and was almost hit by a box truck becuase i just sat there. who can help direct me to a repair which will ultimately end this issue? now, the lights off this week (watch, now that i say this it will come back on). the only thing i notice is that many times the light turned off after i filled the tank. so, is there anyone out there who knows what's wrong (referring to mechanics who take us for a ride $$$)? i challenge anyone out there to figure this out.
08/27/2010
 My chevy trailblazer displayed a service engine light and 4 wheel drive service light a few days ago. got it to the dealer. they stated the thermostat and 4 wheel drive switch needed replaced. ($550.00). the day this was replaced, i drove it home and tested the 4 wheel drive switch. as soon as i pressed on the gas in 4 wheel drive, the tach shot to 5000. it displayed 5000 for the rest of the day (even while idling). the next day, the tach stopped working all together. dealer won't take responsibility for any error or reasoning to why it quit working. just a coincidence?????
02/02/200855000
 2004 trailblazer - all guages don't work or max. out; speed guage and gas guage quit working. started at about 55,000 miles
01/01/2010
 There have not been any accidents or injuries yet, that i know of. there have, however, been many complaints that i have seen for the same problem i am having and chevy does not care. the speedometer and other gauges on my 2004 trailblazer do not work correctly, the speedometer can read 0-120 when at a complete stop. therefore we never know how fast we are going and with children in the vehicle this is very disturbing. besides the gauges the wires for the headlights keep burning. i was told when i had the first one fixed that it is very common in these vehicles. the fact that both of these problems are so common with many chevy vehicles and they are recalling some and not all, i guess i just want to know why not all?
01/10/2010600000
 The speedometer and battery guage will not work. the speedometer shows over 100 mph when you are not moving. called the dealership and they said they get calls everyday on this problem, but gm does not have a recall on the trailblazer only on the pickup trucks.
02/08/2010
 I also just had to replace the cluster for my instrument panel in my 2004 chevrolet trailblazer. i find it very interesting, the number of cars that are having the same failure as i have had at approximately the same time.
12/04/2009950001
 As i have seen from other owners of the same gm product, while driving down the road my speedometer doesn't work right. is always registering at a very high speed, sometimes even pegging down where your gears are located. costs to repair is $600-$700 and 5-7 days of down time as the part must be sent away and repaired. like other consumers i can not afford this costly repair. i would think after the numerous complaints gm would repair. personally, i'm considering foreign next time. at least they own up to their mistakes and repair at no cost to the consumer. *tr
09/06/2009820001
 Instrument panel gauges fluctuate, showing inaccurate readings. speedometer sticks on one speed and also just fails consistently. *tr
02/05/20101
 On 02/05 /2010 i was going south on 165 to monroe, la it was about 8:00 at night,when the dashboard lights then the headlights just went out. this made me go into a panic. i did not know what to do because it was very dark. i did manage to pull over. thankfully there was a gas station near by. on 2/06/2010 i took to a chevy dealer and they told me that they have be seeing this problem for some time. but they close early on saturday so they could not fits it in one day. so i took to another repair shop and they told me they have seen this same problem 4 times in jan. so chevrolet has a problem that needs looking into. *tr
02/15/2010657501
 I own a 2004 chevy trailblazer that i purchased new in 2004. in 2007, the instrument cluster began to malfunction exhibiting erratic function. i took it to my local dealer where i purchased the vehicle and it was replaced under the warranty. now, here it is, 2/2010 and the cluster is doing the very same thing the original defective cluster was doing. i have gone online and read where many, many owners of chevy products from 2003 on are having these comparable issues and that chevy has some sort of extended warranty they are offering for many gm products with these defective clusters. i am disgusted by the fact that, from what i have read online, trailblazer owners have been excluded from this extended warranty due to an inadequate number of complaints necessary to warrant coverage. it is a known fact that the trailblazer has the identical instrument cluster as the other gm products covered in their extended warranty. at this point, i am adding myself to what i'm sure is a growing number of unhappy gm owners coming to you in hopes that gm will be made held responsible to replace a their defective product. *tr
02/04/2010640001
 The speedometer, oil pressure gauge, and tachometer have stopped working on my 04 trailblazer. only have 64,000 miles on it. have talked to mechanics about replacing. told it would cost between $400 and $800 to replace but may not fix the problem in the long term--many times replaced clusters have the same problem. look at the internet and you will see that many people are having the same problem. *tr
07/01/20091
 Each time i start my 2004 chevy trailblazer ext the change engine oil light comes on. after 15 seconds it turns off. on several occasions, my rpm will either go extremely high, traveling 30 and the rpm says i'm doing 90, or will go extremely low, going 30-says i'm going 0. also, my gas gauge started me out with just under a half a tank of gas, and when i got to work 15 miles away, i am under a quarter a tank of gas. finally, my 4wd and all-wheel-drive flashes intermittently while i am driving. i do not need to switch it myself, it just sometimes switches to 4hi, and flashes between. this morning i noticed the light wasn't on, period. the electrical system is entirely messed up. *tr
01/28/2010840001
 I have a 2004 chevy extended trailblazer with 84,000 miles. my speedometer is stuck at 90 mph. i understand it is not a recall issue and this is not covered under my warranty. it will be approximately $500 to fix a safety issue. i don't feel this is fair. it should be a recall. it is a safety issue when you don't know what rate of speed you are traveling. i understand from discussion boards in the internet that this is a very common chevy trailblazer problem. i have not yet had it fixed as i cannot afford it at this time. my car was just in a few weeks ago for a cost of over $300 for a thermostat. tw*
01/05/2009600001
 I own a 2004 chevy trailblazer with a malfunctioning dash. the rpm gauge does not work, speedometer bounces back and forth only working once in a while, gas gauge quite working last week so i am judging by how many miles i travel. the mileage has not stopped functioning yet. i feel that this is not a safe manner to operate this vehicle bu it is my only mode of transportation .i understand that there are several complaints online about this very same problem. chevy should be help accountable and recall/fix this issue. *tw
01/14/2010470001
 All gauges are randomly failing, but even when working they do not read properly. the speedometer will read all over the place and not move and then at times appear to work, but thanks to a gps in the car i noticed it was showing 10 to 20 mph off on the low side. *tr
10/26/2009623211
 I own a 2004 chevrolet trailblazer ext. took the vehicle in october 2009 for a oil change & a exhaust leak was told the exhaust manifold needed to be replaced, after searching on the internet found out it is a known problem that gm when manufacturing the vehicle used bolts that were to long therefore the exhaust manifold wasn't properly torque/tightened which made the manifold vibrate until it broke and prior to its breaking it leaked the manifold becomes loose and that leads to it cracking. after having the vehicle repaired at the cost of $319.50 & having it back for a month & driving it 3 times my speedometer went haywire registering a sitting still speed of 45 mph. once again looked on the internet and found numerous complaints about the instrument panel cluster they have issued recalls for the chevy trucks and yukon gmc for the same issue but no recall so far about the trailblazer. this repair will cost me $516.33, both of these repairs are due to faulty manufacturing & should be listed as a recall. i just hope that none of the other issues i have read about becomes a concern for me. *tr
10/26/2009623211
 I own a 2004 chevrolet trailblazer ext. took the vehicle in october 2009 for a oil change & a exhaust leak was told the exhaust manifold needed to be replaced, after searching on the internet found out it is a known problem that gm when manufacturing the vehicle used bolts that were to long making the manifold get to hot and therefore leads to it cracking. after having the vehicle repaired at the cost of $319.50 & having it back for a month & driving it 3 times my speedometer went haywire registering a sitting still speed of 45 mph. once again looked on the internet and found numerous complaints about the instrument panel cluster they have issued recalls for the chevy trucks and yukon gmc for the same issue but no recall so far about the trailblazer. this repair will cost me $516.33, both of these repairs are due to faulty manufacturing & should be listed as a recall. i just hope that none of the other issues i have read about becomes a concern for me. *tr
12/08/2009500001
 2004 chevrolet trailblazer speedometer and fuel gauge are unreliable. speedometer sometimes seems to work but is no accurate when it does show a speed. fuel gauge moves but is usually the needle is not even in the normal area ie. between e and f. there are numerous complaints online, but gm has not issued a recall. this is a prevalent problem that gm should resolve at no cost to the owners. *tr
10/15/2009490001
 I have a 2004 trailblazer i purchased in 2007 for my wife. after about a year the speedometer is not working at all. after a little research, how found out many people are having the same problem. i believe chevy should recall the instrument panel. *tr
07/13/20051
 We are the owner of a 2004 chevy trailblazer. i would like to file 4 major concerns regarding our vehicle. the first i have brought to the attention of the chevy company. our trailblazer was shutting off due to a bad seal somehow connected when the heat/air is running. the vehicle just shuts off and you lose complete control. we had an outside mechanic fix the problem. the second is the loss of our windshield front windshield wipers. they no longer work. the 3rd is the rear molding broke loose from water collecting and then freezing with no way of preventing this from happening. we lost this piece of molding while driving on the highway and it hit a semi truck. the 4th is a major electrical problem that has not be able to be diagnosed. each morning when starting the vehicle, the suv will act like the battery is dead and then start. i have had this vehicle in while under warranty and problem was not found. i am quite concerned with this vehicle. i am not sure if others have had these problems, but i would like to have them notated. we are currently on our 3rd battery since 2004. *tr
08/10/2009890001
 The speedometer has been giving me problems for some time. at first it would malfunction from time to time at approximately 89,000. now the speedometer has stopped all together. when i started investigating this problem i found out that chevrolet has another vehicle, chevy tahoe, that has had the same problem. why there is a recall to fix the tahoe and not the trailblazers? definite defect trend that should result in a recall. i don't have the $600+ to fix so must continue to drive with my young children in it. a very unsafe situation for me and the others on the road! waiting for the whole instrument panel to fail as others say happens next! *tr
12/08/2008534341
 On november 26 2007 took my chevy trailblazer 04 4 wheel dr. in for steering wheel shimmy. could not duplicate. also c.d. changer will not eject cd's and low beams on headlights not working. repaired headlights and c.d. changer. did not fix steering problem. on june 07 took in for major service with 33,000 miles. on dec.8 2008 took in for stalling when coming to a stop. could not duplicate the problem.this is my main complaint, the stalling on jan.. 10 2009 took in for erratic speedometer which was happening for about 3 months off and on.rebuilt the speedometer. on june 11 2009 took car in for stalling, ses lamp comes on when driving and hvac fan does not blow on the #5 position. there is alot of grinding and whining when vehicle shifts to second gear. and turning at low speeds there is a whining coming from the front end. removed and replaced 02 sensor. for the stalling they could not verify concern. recommended throttle body de-carb and injection system cleaning. for the #5 fan not working removed and replaced speed control resistor. transmission they could not feel any unusual shifting.for the steering prob.replaced power steering pump and power steering gear. car still stalling on 6-19 -09. took in. did another decarb service and replace fuel filter.still stalls. 7-01-09 when car starts there is a loud clutch fan noise like a jet taking off. feels like the trans is overworking, veryloud not right. fix,was fancontrol set im properly trouble code p0483 . bulletin 05-06-02-004 reprogram pcm. claim code1013b. july 8 took car for stalling issue july 9 took car for stalling issue july 10 took car for stalling issues no paper work for these 3 days they were trying to recreate the stalling issue. july 20 2009 in shop for 16 days for stalling issue they finally confirmed .replaced pcm. they called in tech assistance case #10971267 he said to perform top engine cleaning. outcome is cannot guarantee repairs at this time due to how random this prob occurs. *tr
01/15/2009630001
 The speedometer on my 2004 chevrolet trailblazer frequently gets stuck or stops working, while driving. *tr
02/15/2009300001
 2004 chevrolet trailblazer all instruments intermittently quit functioning during normal operation (speedometer, fuel level, rpm's, battery charge, oil pressure, temperature, mileage, and gear indicator. you can't tell what gear you are in. difficult to figure out forward from reverse. this is not safe at all to operate especially not knowing what gear you are in. *tr
11/20/2006450001
 Instrument cluster my 2004 chevy trailblazer has been acting erratic or not at all on some of the gauges. i've read that it is a very common problem and some have been recalled but not all. *tr
02/07/2009630001
 On february 7, 2009, we were driving on the interstate. when approaching traffic i took the vehicle off of cruise and began to slow down. however, the speedometer did not move. after that, everytime i began to accelerate, the speedometer would not move. everytime i start the car it drops 5 mph, but when you use cruise or do a constant speed, it sticks again. we are getting ready to go on a big family vacation and do not feel safe taking my family in a vehicle that you don't know how fast you are going. my mechanic is replacing the cluster with a used one from the local salvage yard. a used one with labor is still going to cost me $200 and who knows how long that one will last. i cannot believe with this many complaints about the same equipment failure that gm hasn't done anything. it's just not safe! *tr
04/18/2009550001
 Yesterday my dashboard control panel worked great. this morning (4/18/09) as i was driving to my bank, i noticed that none of the gauges and/or lights were working ( oil gauge, temperature gauge, battery gauge, speedometer, tachometer, etc). major safety factor. *tr
03/05/2009754251
 (speedometer cluster problems) it seems to be a big prob with chevy trucks & suvs. my vehicle speedometer cluster is no working, gm is refusing to recall the 2004 tb. *tr
01/12/20091
 I have a 2004 chevy trailblazer extended suv. my check engine light has continuously flash on and off since having the truck only six months. it has continued to do this for the life of the car at almost 70,000 miles. also, my speedometer now works only when it wants to. at first we thought it was because of the cold weather, now it is almost 70 degrees and we have the same problem. sounds as if this if very common in these models. someone needs to find a way to compensate owners for these costly repairs. *tr
12/10/2008680001
 The speedometer has been failing consistently. several occasions it fails to return to zero, registering 100mph when gps shows 35mph. after several days, it will start working normally - then fault again. miles driven on the odometer does not appear to be affected. the condition is starting to spread to other gauges, with the tachometer showing several similar symptoms. *tr
07/20/200866000
 Tl*the contact owns a 2004 chevrolet trailblazer ext. while stopped at a traffic light, the contact noticed that the speedometer displayed 50 mph. the speedometer became inoperable and would often become stuck at zero. in addition, the speedometer would often display 100 mph when the contact was driving less than 50 mph. the manufacturer and dealer could not provide any assistance. the failure mileage was 66,000 and current mileage was less than 73,000.
01/20/2009560001
 My speedometer on my 2004 trailblazer doesn't record the exact speed. *tr
01/12/2009850001
 The gauges on my 2004 chevrolet trailblazer do not work. i had this same problem several months ago and took to dealership to fix, they said there was nothing wrong. now my warranty is out and they again are not working. it is not safe to drive when the speedometer, tachometer, oil gauge, and temperature gauges don't work. apparently this is a problem that many owners of the same model have reported and nothing has been done about it. this is a safety hazzard and should have a recall associated with it with chrevolet footing the bill. i guess it won't be addressed until deaths or injuries are associated with it. *tr
02/06/2009584001
 My speedometer and tach began reading high (90mph, 115mph - 6000rpms, 7000rpms) before both needles pointed straight down. if i turned off the car, they would reset themselves to 55mph and 5000rpms. i was on the beginning of a long road trip when this happened, so i was hoping i wasn't going to get pulled over for speeding. when i returned home i took my car in to be repaired and thankfully i was still under warranty. this problem also happened to my parents 2004 trailblazer. after seeing all of the complaints of the same issue, i feel that i shouldn't have had to pay my $100 deductible. this definitely sounds like a gm defect. if his ends up being a recall, could i get reimbursed?? *tr
02/11/2009373421
 While exiting my child school parking lot the engine shut down and went into limp mode. i was in the middle of a busy intersection, had to turn hazard lights on so i wasn't hit. could not go over 5 miles per hour. speedometer has intermittently gone haywire. instrument cluster failure. *tr
11/06/2008830001
 The instrument cluster is erratic, speed show zero, tach is not working at all now, the oil pressure and volt meter is erratic. this is a unsafe driving condition not knowing if you are going at a unsafe speed or if you are doing damage to the motor with the oil pressure is so erratic. *tr
10/24/2008900001
 Instrument cluster goes crazy. no oil pressure/excessive oil pressure, no tach/pegged tach, speedometer gives false speed readings(this is really dangerous), battery reads low volts or off the scale volts/. this happens every day. chevy dealers estimated repair cost $600-$700 dollars. *tr
01/24/2009840001
 The speedometer has become erratic and will not show how fast we are driving, causing an unsafe condition. based on the number of posts on several forums, this appears to be a very common problem, and with time may become universal. *tr
01/27/200966000
 Tl*the contact owns a 2004 chevrolet trailblazer ext. the contact stated that the speedometer becomes stuck at 20 mph. in addition, the speedometer displays 40 mph when he is driving 60 mph and vice versa. once the vehicle is shut off and restarted, the speedometer fails completely. the failure has been occurring for three weeks. the mechanic stated that the speedometer cluster needed to be replaced; however, the contact feels that the repair should be covered by the manufacturer because the failure is not due to driver error. the current and failure mileages were 66,000.
03/10/2008650001
 The odometer and rpm gauge stop functioning. while you are driving the odometer stops below the zero and stays stuck, it will stop at 50 and stay there, it will stop on 120 and stay there. the odometer gauge sometimes will stop below the 120 right above the digital mileage gauge. *tr
11/16/2008390001
 The instrument gauges, including speedometer are producing erratic data, sometimes 25-30 mph fast or slow to the actual speed as tracked by a garmin gps, and milemarker calculations. the oil pressure and amp gauges are not working properly as well. *tr
09/01/2007400001
 Speedometer started to act erratic at about 40k miles. now at 72k miles, does not work at all. i just spent $200 trying to repair, only to find out after that failed, that this is a common problem with gm. how can they justify recalling the tahoes, avalanches, etc, for the same problem, but leaving the trailblazers out of this safety recall? *tr
10/06/20081140001
 No previous problems with panel. problem occurs frequently. tachometer quit working correctly...goes completely to opposite end of gauge. took days before it went back to normal location. speedometer does not work correctly...continues to climb to higher end of gauge....reads above 30 even when standing still. goes down after repeatedly shutting off and restarting engine. whirring sound made when starting or stopping engine. contacted chevy dealer repair shop, they are fully aware of situation, advised it will get worse and will eventually stop working at all. no parts are serviceable, needs to be sent out for repair, could take anywhere from a day to a week or more depending on the parts needed. plus there is the additional cost of having it read by the computer for the correct part(s). my car will be inoperable soon according to dealer, unsafe to drive, situation needs immediate fix. *tr
11/21/2008483001
 I own a 2004 chevrolet trailblazer north face/ext. the speedometer has been giving me problems for some time. at first it would malfunction from time to time. now the fuel gauge has stopped all together. when i started investigating this problem i found out that it is a common problem with this make and model vehicle. i also found out that chevrolet has another vehicle, chevy tahoe, that has had the same problem. why there is a recall to fix the tahoe and not the trailblazer ext. is very interesting to me. i have gone as far as to take a look at the tahoe instrument cluster and saw that they are very alike. the vehicle recall to replace the instrument cluster on these vehicles should be sent out asap. if you take a look at the complaints on the internet you will see that this is a problem that many trailblazer owners seem to be having. you will also see that the tahoe complaints, for which there is a recall, are identical. thank you; patrick *tr
12/22/2008440001
 We were traveling for the holidays and noticed that the rpm gauge stopped functioning properly. it was pointing below zero. then, last week the problem spread to the gas gauge and the oil pressure gauge. this is a potential safety hazard. *tr
11/27/2008420001
 Several times that i've been driving the trailblazer, the speedometer goes crazy and says that we are traveling at a much higher rate of speed than we are. like if im going approx 70mph, it states we are going about 110mph! this is definitely a safety issue! and it has never been a recall? *tr
10/01/2008500001
 I own a 2004 trailblazer ext and a couple of months ago the rpm gauge stopped functioning and doesn't even register. less than a month later the speedometer started malfunctioning and many times doesn't even register a speed while driving for several hours. this has been a daily occurrence every time my wife and family get in the vehicle. this is a serious safety hazard for my family and for anyone else we may pass on the road. i know from reading multiple other complaints across the internet that this is not an isolated issue and that gm has already recalled the console cluster on several other models having the same or similar issues. when are they going to be held responsible for also recalling the same problem on this vehicle make? *tr
07/10/20081
 Speedometer has completely stopped working. started out intermittent. *tr
08/03/2008540001
 Total failure of entire gauge cluster around 54000 miles 600 dollar repair was told that it shorted out and melted the connectors. *tr
12/10/2008510001
 I started to lose the high speeds on the fan blower. in checking the internet i found this is a common problem for g.m. the problem is the blower motor resistor. when i went to replace this part i found that the whole wiring harness had been burnt to. it got so hot that it melted everything. the fuse for this did not even blow. this could have set the truck on fire. it is funny how the parts to fix this has much thicker wire. the parts in total was around $118. thanks to a friend i had no labor cost. if i would of taken it to a g.m. dealer for sure they would of wanted over $300. g.m. knows they have a problem and are doing nothing about it. i feel this is a serious matter as it could of set the truck on fire. *tr
11/07/20081
 I have many electrical issues with my 04 trailblazer from my window lights on the drivers door and the passenger door. i have had my radio replaced because it melted one of my cds. my head lights work when they feel like it same with the rear wiper. it has stalled out in traffic on me. i have also heard that in most 2000 to 2006 trailblazers the reason for the electrical problems is because water is running down the passenger side door into the dash and hitting one of the main wiring harnesses causing it to have many electrical issues. i heard this from someone who has an 06 trailblazer that just had it a replaced for $700.00 to fix and was told that it will just have to be replaced in a few more years because they cant fix the problem. *tr
02/18/2008500001
 Speedometer freezes and you can't tell how fast you are going. happens quite often. brought it in, but they were unable to diagnose the problem as it wasn't happening at the time. *tr
04/01/2008450001
 We have a 2004 chevy trailblazer, that originally began with the speedometer appearing to be stuck for a few days, would gradually decrease. followed by the rpm having the same problem. today, 11/28/08, all gauges lit up, warning bells rang, and then the entire instrument panel shut down. there was a recall for the silverado for the same year, but trailblazer owners are required to pay the repair bill for a faulty instrument panel. being unable to know your speed, how much gas you have, or if your running low on vital fluids seems to be pretty dangerous to me. the fact that gm will repair the silverado, but not the trailblazer despite the fact that they are both in the truck category is ridiculous. it seems to me that any one of these problems can lead to death or injury of the occupants of my vehicle, either by fire, stalling in traffic and being hit by another vehicle at a high rate of speed, or because of the inability to ensure that my vehicle is operating with the proper vital fluids, as well as maintaining a safe rate of speed. my teenage children also drive this car on occasion, and though they've been driving for 3 & 4 years, they do not have enough experience to operate this vehicle safely. there was a recall for the brake lights, how can they justify that when people are driving around without properly working instrument panels? the solution being offered is for the consumer to pay at least 500.00 to repair something vital to the safe operation of the vehicle, but gm will replace the taillight/brake light that costs pennies on the dollar. *tr
11/20/20071040001
 I own a 2004 chevrolet trailblazer ext. in nov 2007, the speedometer and tachometer started acting erratically. the tachometer would seem to stick and the speedometer would register either grossly over or under my current speed. it sticks when trying to accelerate after a deceleration. i have been able to get it to reset only after turning the engine on or off several times consecutively. i have been going down the interstate at speeds of 70+ (within legal speed) and the speedometer will show -5 mph. also, i have been going approx. 60mph and the speedometer shows 90+mph. i took it to the dealership where i purchased it in nov 2007 and at the time, their instruments couldn't detect a problem mileage at time of failure approx. 104,000 (had a 100,000 warranty). they charged a $100 diagnostic fee to tell me they didn't see a problem. current mileage is approx. 134,000. i have not had the problem fixed. *tr
07/27/2008460691
 Automatic transmission shifted out of third and would not shift back while i was on the freeway. dealer said a transmission flush and fluid change would fix it. after performing flush dealer transmission was shot and needed replacement. instrument cluster functioning intermittently, speedometer works at first and then slowly goes down to zero. *tr
02/17/2008383721
 Rpm's and speedometer to not read correctly. *tr
09/10/2007370001
 The speedometer on my 2004 trailblazer works intermittently. this began in the fall of 2007. sometimes it works seemingly fine. it will then freeze on a speed. sometimes it will register a speed that is obviously incorrect. for example it will register a variable speed that is 20 or more mph faster than we are traveling. it sometimes points straight down. then last week out of the blue it worked again for a few days. unfortunately, this only lasted a few days. i never know how fast i am going and try to stay in the flow of traffic. i asked the dealer about this and they did not mention any other problems with this and told me it would cost $500 to repair. this is a real safety issue. *tr
07/30/200610006
 2004 chevy trailblazer. intermittent engine stalling since new. many service visits to chevy dealers to fix, however mechanics stumped. local gas station mechanic found the problem having to do with components in the emission control / vapor recovery system. now chevy needs to figure out the cure. in the meantime i get to drive around with the check engine light on. i guess this is better than being crashed because my car stalled in an intersection or on the highway. chevy mechanics and engineers need to get the duh award. very bad customer service and diagnostics performed by chevy. i would still like to have the check engine light to go off, and have the engine not stall if that is possible. please send info to have this done if possible. *jb
09/02/2004620005
 I am complaining about a 2004 chevy trailblazer problem the speedometer is measuring incorrect speed or not working at all. i can be parked and it reads 60 mph i am driving it reads 120 mph. in speaking with several gm owners this is a problem with quite a few gm vehicles and is very dangerous. i think this should be looked into before someone gets hurt. it is very scary not to know what speed you are driving at. in speaking to several owners and looking at web sites of complaints this is a problem and has been one for a long time. i do not blame my dealer i blame chevrolet or gm whoever made the car there are so many complaints about this speedometer with other makes from gm, its not the dealers fault for this problem. *nm
06/21/200624000605/20/2004
 Engine stalls at various times for no reason. have had it into dealership many times. dealership has been unable to isolate problem. service engine soon light came on after first stall. dealership reset computer. since then, the engine has stalled at least 5 times. ses light has not come back on. engine usually restarts after approx 5 minutes. *nm
02/02/200624100111/03/2003
 Full destruction because of fire i was on the way back from a long trip in southern chile (up to ushuaia) over the carretera austral and, after about 9'000 km drive without any problem, i saw a white smoke back my vehicle. oil pressure: normal, motor temperature: normal. this meant immediate stop along the ruta 40 norte in argentina (about 100 km north of bariloche, on the way to neuqu). while stopping, i felt the brake pedal just going without immediate reaction but the pression came back. while bringing the gear shift to position parking, i did not feel any sensation, as if it would have no connection; the automatic door blocker connected to the gear shift did not work too, so that we had to unlock the doors manually. after having disconnected the engine, i saw white smoke coming out from the upper left corner of the motor. i opened the capot and the smoke came from the left corner (close to the driver's place). suddenly, some material in flames fell to the bottom, about middle light left of the car. i tried to put out the flames with the extinguisher, but other burning material fell. other people had stopped and helped me. we pushed the car a little ahead - though the hand brake was tied and the gear shift on p, but burning material fell again. in the meantime, my wife and children throw out the luggage, so that we could save almost all of it. but the car burned entirely. what could be the reason of this incident ? thanks god, i stopped immediately so that nobody was injured nor burned and no third party suffered any damage. *nm
11/10/20052000109/07/2004
 There has not been an accident yet, just one looking for a place to happen. my vehicle i believe has an electrical problem. which in turn affect all functions of the vehicle, safety being one. i have had (2) fan switches go bad (2) crankshaft sensors go bad. (1) cruise control malfunction. (1) turn signal relay (1) radio console replaced for overheating (1) headlights when below 32 degrees flucuate in brightness till vehicle warms up. dealer stated this is normal operation. ha,ha, and transmission shifting problems (1)they reprogramed computer to solve, next some solinoid replaced and now the problem is back. i have a family of 6 that i have in the vehicle 90 % of time. i now have concerns that the wiring must have a short somewhere. which potentially could cause a fire, or an accident due to what happens when the headlights go out or antilock brake system fails or taillights, etc. gm refuses to replace wiring in vehicle. gm rep told me to contact whoever i wanted to. they are not going to stand behind fixing the problem. just keep replacing the electrical items as they go bad. *nm
ELECTRICAL SYSTEM - INSTRUMENT PANEL
06/01/20121
 The electrical system on my 2004 trailblazer ext is not operating properly. the tachometer doesn't register, nor does the battery gauge and uncertain if the reading on the oil gauge is accurate. the fuel gauge is not operable, the needle is either pass e(empty) or pass f (full), i'm constantly re-fueling for fear of running out of gas. when first starting the engine, the speed indicator might register correctly, but then it falls below 0 mph while traveling speeds of 35 to 55 mph and other times it may indicate speeds in excess of 100 mph. problems with the speedometer first started in june 2012 , i used a gps to keep track of traveling speed. afterwards, the other gauges started to malfunction. no parts have been repaired or replaced.very concerned about safety issues, as i occasionally transport my grandchildren to appointments. has chevrolet made any amendments to correct these problems? assistance needed please. *tr

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