Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
PIP-4138K01/01/201110037933Gm: the service engine soon light is on, there is also a misfire or engine noise. there are multiple possible causes. *rm06/08/2011
PIP-4138K01/01/201110037933Ready06/08/2011
06060200302/01/200610019510Operating characteristics of the electro-viscous (ev) fan clutch and diagnostic tips for cooling fan noise, delayed transmission shifts and/or engine revving too high. *tt03/20/2006
05060103411/01/200510018733Engine oil leak at rear cover assembly area. *tt01/12/2006
362610018562Ses light with p0613 or p0614 on tech 2 - dtcs not in si. *tt01/06/2006
36143614A10018577P0300 due to random misfires not felt - possible accessory pulley. *tt01/06/2006
05060102609/01/200510017818Information on use of bolt extractor tool kit part number en-47702 for removing broken cylinder head or main bearing cap bolts on inline truck engines. *tt12/02/2005
05060401703/01/200510014996Throttle tip-in clunk noise at low speeds. *tt05/13/2005
ENGINE AND ENGINE COOLING - COOLING SYSTEM
385710019211Supplement to bulletin 05-01-37-002a, poor rear heat performance . *ak02/21/2006
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
363710018538Ev cooling fan noise characteristics - do not replace ev fan. *tt01/05/2006
ENGINE AND ENGINE COOLING - ENGINE
PIP-4492P08/01/201010036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe03/16/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/03/16/2011
06013900204/01/2007060139002B10022260Front blower motor inoperative or may not shut off in extremely low ambient temperature conditions. *kb07/24/2007
06060404809/01/2006100208794.2l ll8 engine flashing and/or mil/ses light. rough idle, misfire. dtc p0300, p0301, p0302, p0303, p0304, p0305, and p0306. *kb01/25/2007
369310019456A rough idle/running concern may be encountered with a p0014 and/or p0017 dtc. *tt03/15/2006
3693A10019419Rough idle with dtc p0014 and/or p0017 - inspect cam actuator solenoid screens and crankshaft end play. *tt03/14/2006
05060201210/01/2006050602012B10018986Service engine soon (ses) or check engine light on, dtc p0526, p0480, p1481, and p1484 set. *tt updated. *kb01/26/2006
343210017415Oil leak from rear of crankshaft - inspect for crankshaft porosity. *tt11/07/2005
05060101405/01/200510017409Oil leak under extreme cold temperatures (-34 degrees c) (-30 degrees f) or colder). *tt11/07/2005
05060102202/01/2006050601022A10017385Diagnostic information on engine oil leak from rear of crankshaft. *tt 05-06-01*022 supplement - crankshaft oil leak repair instrumentions. *tt11/04/2005
340510017130Engine is hard to start after filling the fuel tank. *tt10/25/2005
32323232A100148701999 - 2005 gen ii cold engine misfire at idle with possible p0171 and/or p0174. *tt05/10/2005
04060102207/01/200410012109New cylinder bore liner/piston sleeve replacement procedure. *tt02/14/2005
04060300505/01/2006040603005A10008665Proper connection information to avoid blown 125 amp fuse and various interior electrical system conditions when jump starting vehicle. *tt08/13/2004
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CRANKCASE (PCV)
PIP-4492P08/01/201010036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe03/16/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/03/16/2011

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE
03/11/201392600
 Vehicle would not start. had it towed to mechanic shop. battery was completely dead, though the battery was only 1 year old and was a very expensive ac delco 6 yr battery. mechanic changed the alternator and the battery and everything tested the same. put old battery and alternator back in, as battery he charged was holding the charge ok. could not locate source of problem. the next day, the dash lights were not working, nor the interior lights. as i drove along the highway, the dashlights blinked and then stayed on. ceiling light works intermittently. the alternator shows that it is charging very hard. according to other incidents reported on the internet, there is an electrical problem in the 2005 trailblazer that may or may not be associated with the passlock anti-theft system, but in any case, shows slow leak of electrical current that slowly drains the battery 24/7, until the battery is dead. why is no recall issued making general motors responsible to find and fix this problem without cost to the owners of 2005 trailblazers. i spent $130.00 at the mechanic shop and they could not find what the problem is, much less fix it. my vehicle is parked in a garage most of the time, and there is no reason for this malfunction other than faulty gm part somewhere. our local chevy dealer told me they think the problem is related to the passlock anti-theft system but they have never been able to nail it down. they reference a vehicle which they kept for two weeks for diagnosis of a won't start complaint, and the vehicle started some days and not other days with no pattern to the malfunction.
10/13/2012890001
 Due to a faulty gas gauge the car engine stopped on a highway three miiles away from fuel with children in the vehicle. *tr
10/13/201289000
 Due to a faulty gas gauge the car engine stopped on a highway three miiles away from fuel with children in the vehicle.
ENGINE AND ENGINE COOLING
07/09/20121040001
 Went for an oil change and my transmission dipstick handle was rusted off (kind of hard to remove it). i can't find anywhere that replaces them either.... *tr
05/17/20111400001
 The blower/fan on the air conditioner/heater stopped working. it first began with #4 and #5 on the fan selector switch not working, but then it stopped altogether. after doing research this blower motor problem is very popular amongst these vehicles. also, the fuel gauge on the dash hasn't worked in about 3 years. after doing some research, it appears that this is due to the fuel sensor in the fuel tank. again, this is very common occurrence within the trailblazer community. i was given an estimate of $774 for the blower motor to be fixed and $600 for the fuel gauge to be fixed. *tr
12/14/200915000
 Tl* the contact owns a 2005 chevrolet trailblazer. the contact stated that the vehicle would stall sporadically and without warning. the dealer and the manufacturer were notified of the failure, but denied any assistance with repairs to the vehicle. the vehicle was not repaired. the failure mileage was 15,000 and the current mileage was 40,000. the vin was unavailable.
12/14/200915000
 Tl- the contact owns a 2005 chevrolet trailblazer. the contact stated that the vehicle would stall sporadically and without warning. the dealer and the manufacturer were notified of the failure, but denied any assistance with repairs to the vehicle. the vehicle was not repaired. the failure mileage was 15,000 and the current mileage was 40,000. the vin was unavailable. kmj
11/07/2010100000
 Tl- the contact owns a 2005 chevrolet trailblazer. the contact was driving approximately 45-50 mph when the vehicle would suddenly jerk forward as if it were attempting to stall. in addition, the fuel gauge would not operate properly and would read empty after she would refill the tank. the vehicle was not inspected by a dealer nor repaired. the manufacturer was contacted and they offered no assistance. the failure mileage was unknown and the current mileage was approximately 100,000. kmj
11/07/2010100000
 Tl-the contact owns a 2005 chevrolet trailblazer. the contact stated that while driving approximately 45 to 50 mph the vehicle would suddenly jerk forward as if it were giong to cut off. in addition, the fuel gauge does not operate properly and would read empty after she would fill up the tank. the vehicle has not been inspected by a dealer nor had it been repaired. the manufacturer was contacted and they offered no assistance. the failure mileage was unknown and the current mileage was approximately 100,000. tb
08/19/201178000
 When filling up tank with gas, fuel gauge indicates empty and low fuel light appears. blower fan switch works intermittently,
10/03/201166000
 I have been hearing a clicking noise and my car had begun sounding like a jet engine taking off for the last 3 days - very noisy. i took it to pep boys where i was told that it is normal for the trailblazer to begin making this noise shortly after 60k miles. i was told the serpentine belt needed to be replaced, tensioner pulley and the idler pulley. i had the new parts installed. none of my warning lights came on the dashboard so i assumed was well as there was no other indication that something was wrong. driving my car within 24 hours of being fixed, the fan clutch seized and my water pump burst causing car to overheat in the middle of an intersection where my car then stalled putting me and my children at risk for injury. the car almost caught on fire it was smoking severely. someone helped me move my car out of the busy intersection and i called my husband and a tow truck to come get the car. when i got home and looked up the problems again on the dealer website, i found hundreds of forums where the fan clutch has been mentioned and the water pump too. a fan clutch according to the mechanics i surveyed stated they should last at least 100k or more. this has been brought to gm and they ignore it. it is a safety issue. additionally, my speedomter hasn't worked for at least a year and when i called chevy they wanted to charge me $700 to replace it when it is not my issues. i didn't cause it. not knowing what speed you are going is definitely a safety hazard and can cause accidents or tickets.i am attaching a forum (this is just one of hundreds i found online)http://www.edmunds.com/chevrolet/trailblazer/2004/consumer-discussions.html where people are having the same safety issues i am and gm has ignored them. my car could have caught on fire today and i had my 4 yr old daughter with me. not a position i ever want to be in. please issue a recall.
06/29/201164755
 The exhaust manifold on my engine had cracked and the mounting bolts had broken causing an exhaust leak.
05/20/200950000
 I had just bought my 2005 chevy trailblaser lt. i bought it from a dealer used and they didnt tell me the gas gauge didn't work right. i have ran out of gas quite a few times.i try to remember to set my tripmeter but sometimes i forget. needless to say its a huge problem. i have driven chevys all my life and so has my family, i am very dissapointed gm has not taken care of this problem and had a recall. for what i paid and since i've always owned a chevy they need to get off thier corporate butts and fix it!! this is a danger to the people who drive them as well as passengers and other vehicles on the road. i was hoping gm would voluntairily recall these vehicles, but they won't so its up to the nhtsa to make gm responsible. thank you
08/09/201165000
 Tl-the contact owns a 2005 chevrolet trailblazer. the contact stated that while driving 45 mph, the vents released a burning odor. the vehicle was taken to an authorized dealer, who diagnosed that the blower motor
08/09/201165000
 Tl-the contact owns a 2005 chevrolet trailblazer. the contact stated while driving at 45mph the vents released a burning odor. the vehicle was taken to the dealer who performed a diagnosed that located the failure at the blower motor resistor and connector melted. the manufacturer took a report 71-957792926 but denied assistance with the repair because of the vehicle age and warranty has expired. the vehicle has not been repaired the failure and current miles was 65,000. li
08/08/201097000
 Tl* the contact owns a 2005 chevrolet trailblazer. the contact stated that the catalytic converter warning light was illuminated and the vehicle was taken to the dealer. the dealer advised that the catalytic converter would need to be reset but not repaired. the dealer reset the catalytic converter however the reset was only a temporary repair. one year later after refueling the vehicle, the fuel level sensor failed. the vehicle was not repaired. the vin was unavailable. the failure mileage was 97,000 and the current mileage was 105,000.
10/01/2009
 I own a 2005 chevrolet trailblazer ls and the fuel gauge fluctuates and reads the tank is empty when in fact the tank is full of gas. thus this causes a serious safety hazard due to the fact that this is my main means of transportation for my family and i have to guess at how much fuel my vehicle actually has at any given time. this could result in me either running out of fuel and stall randomly and being rear-ended by another unsuspecting driver.
09/01/2009
 I own a 2005 chevy trailblazer that is experiencing very sluggish acceleration, transmission is not shifting smoothly, and runs very loudly. i have researched this problem and found hundreds of complaints with other owners of this same year, make and model.
01/11/2010521821
 When we bought our 2005 chevy trailblazer we had to turn it around and take it back to the dealership. the check engine light came on. all they did was reset it. it came back on some time later, we took it back to dealership they got it worked in at the nearest chevy shop, they reset the light and we were told to buy a gascap for it. we bought the gas cap, light stayed off until now. we have taken our 2005 chevy trailblazer to the local shop they hooked it up to the computer and found nothing wrong. so far nothing has been done, but since the light is on it is a gas guzzler with light on getting 6 miles to the gallon. with gas at 2.59 a gallon that's not cheap. chevrolet dealer in town says its probably the throttle body needs cleaning, and it needs a new battery. they say the throttle body is a common problem in the new models, because the gas is not fit for the newer model vehicles. *tr
01/07/20101047001
 Car stalls when going around corners. *tr
11/16/2006300001
 I bought my 2005 trailblazer the same year with 19+k miles. i started having it stall on me around 30k miles. i took it to hayward, ca chevy dealership because it was still under warranty. they said that they found nothing. i took in again because the engine light came up and they said the problem was the light only but, that's the light that would flash when it stalls. i took the car back in several times for the same situation. at the time, i had 2 boys.....8yrs and 6yrs and this started too become unreliable because i was putting them at risk and not only that, i would stall and then take a few minutes to start again. i've been told that maybe it stalls because the engine was not warm but i know that it can't be it because a few times i was on long road trips and the engine would stall on and off. this has been an ongoing problem since 06 and it's a horrible risk because it's stalls while driving. my kids and i can get hit from behind. i don't know who else to repost this too. i bought another car 5/07 because this vehicle is not reliable but use it when i have to and up to this day, it still stalls. *tr
11/22/200633000203/01/2005
 Tl* the contact owns a 2005 chevrolet trailblazer. the fuel gauge on the instrument control panel inaccurately displays the vehicles fuel level. the vehicle was taken to the dealership and the fuel tank level system was repaired. the repair did not remedy the failure. the current mileage was 80000. the failure mileage was 33000. updated 12/7/09 *cn the consumer stated after the tank was filled with the gas, there was still a ringing sound as if there was no gas in the vehicle. the fuel gauge would drop even when the tank was full. the water pump and fan clutch was replaced. updated 12/08/09
11/07/20091
 Headlights intermittently 'flash' for a second during first 5-10 minutes of driving. have replaced alternator and idler pulley. gm suggests letting vehicle idle 1+ minute after start before engaging gear; this sometimes works. dangerous and distracting to other motorists, as it appears to them like my vehicle is flashing its highbeams. *tr
03/01/2009460001
 I have a 2005 chevy trailblazer with 46,000 miles and the transmission, idler pulley, and water pump already had to be replaced. *tr
03/15/2009580001
 I have been reporting this same problem for over 4 years to onstar and gm that i had issues with the headlights dimming upon stopping at going. i have called onstar and was told nothing was wrong with my suv. i have also saw a engine light flash, called onstar and nothing was showing wrong. today, my vehicle engine light and battery light came on and i was informed by onstart that the generator/alternator needs to be replaced. vehicle has 58k miles. *tr
09/12/2008760001
 Tl*the contact owns a 2005 chevrolet trailblazer. the contact stated that the ignition switch failed in his vehicle and was replaced by the dealer. the resistance pig tail (wiring harness), the fuel pump module, and the clutch also failed; however, the dealer stated that the contact must pay for the repairs. the dealer stated that there were no recalls for the vehicle and it cannot be repaired for free. the failure mileage was 76,000. 4/01/09 *nj the water pump, pulley and serpentine belt was replaced. updated 04/09/09. *jb
06/01/2006120001
 Engine warning light flashes occasionally. this has been happening with this particular vehicle since i purchased the vehicle. repeated visits to the local dealerships have resulted in no repair. the vehicle experienced total engine failure to which the dealership stated it was a cooling fan. even upon replacing this fan, the light continues to flash on/off. at one point the light stayed on to which onstar reported an engine cooling/ac issue. this warning was reported to the dealership, they stated the problem was fixed but the light will continue to flash every couple of days. this is abnormal and has been addressed multiple times but nothing has been done to fix the issue. *tr
12/17/2007180001
 I was involved in an automobile crash in my 2005 chevy trailblazer. upon impact, the car ignited under the hood and flames came up on the outside of the windshield while my family was still in the car. fortunately i was able to get my family out of the car before it was totally engulfed in flames and destroyed by fire. i contacted gm and asked why my car burned. i told them i was concerned about the safety of my family since members of my extended family own similar gm suvs. i answered numerous questions on the phone. i provided pictures of my car totally engulfed in flames. gm assigned a claim number to my request and engaged esis gm to evaluate the cause of the fire. after approximately 3 months, i received a short letter saying there was no evidence that shows there is a product defect that caused the fire. it further said, if you believe you have additional proofs showing there was a product defect (s) that you would like gm to look at, please submit them. they never answered my question of why the car burned. i had sent them pictures of the car engulfed in flames in the middle of the interstate. they just basically left it me to show proof of product defects and tell them why the car burned rather than answering my question. in fact, their response saying there were no know defects was like saying the trailblazer is designed to ignite and burn upon impact. *tr
04/05/2007610002
 On 04/06 my wife was driving our 05 trailblazer that we have had about a year and the dealer already had to replace the engine, and now the brakes just went completely out without warning. it caused her to rear end another vehicle luckily no one was hurt. the dealer we bought it from refuses to work with us they told us they already put the new engine in it and they didn't have to do it. if they didn't have to do it then why did they keep it 2 months right after we bought it? i took it to a mechanic near where we live and he replaced the master cylinder for the brakes and they work fine now. the dealer said that it was out of warranty and we would have to pay 75 dollars for them to tell us what was wrong with it. this is the worst vehicle i have ever owned. as soon as you fix something, something else major goes wrong with it. you name it and i have probably had it worked on in this vehicle. i called the dealer and tried to work with them and just replace the vehicle with one i could put my wife and kids in without worry if something else is going to go wrong with it and someone gets really hurt or killed. i just need help trading this vehicle in so i can get a reliable form of transportation for my family. just want the dealer to work with me and cancel this loan out and i will gladly buy another vehicle. *jb
11/13/200619476507/05/2005
 Dt*: the contact stated while driving 60 mph, the vehicle stalled without warning. it was maneuvered off the road and restarted. this had happened four times and the dealer replaced the w module and two spark plugs, cleaned the throttle plate and repaired a ground wire. the problem recurred and the dealer could not duplicate the problem.
09/24/200665312/29/2005
 All of a sudden the transmission started to shift funny after a long road trip. it did this once on the highway. we got off the highway and pulled into our town and the car was having problems shifting. we barely made it to our house and the transmission was leaking. we went to drive it to the dealership and it over heated less than a mile from the house. we were told that the radiator deteriorated and sent anti-freeze into the transmission which destroyed the transmission. *jb
ENGINE AND ENGINE COOLING - COOLING SYSTEM
12/12/2005490001
 I have had my water pump replaced twice in that last 1.5 years. the first time was covered under warranty but the next time about 10 month the dealership claim it didn't work again. just today 12/12 i went to drive to work after letting my car warm up for 5 minutes i decided to turn the heat on and nothing came out now i have to call and see if anyone can look my auto. worse brand new auto that i have had. *tr
ENGINE AND ENGINE COOLING - ENGINE
08/25/2008260001
 My 2005 trailblazer with only 28,000 miles started whining loudly, the lights flicker & the heater turns itself on. a repair shop said it may need a new alternator. of course, chevy only put a 3 year warranty on it & this all started happening 1 month after the warranty expired. *tr
12/18/2006130001012/26/2005
 Tl*the contact own 2005 chevrolet trailblazer. the air bag warning indicator light illuminated. the dealer stated that the passenger side air bag suppression module burned and they replaced the module. the vehicle was towed to the dealer because it would not start. the power train control module was replaced and after the contact filled the gas tank. the engine idled after the she started the vehicle and the check engine warning light was illuminated. the cause of the failure was unknown and no repairs were made. the failure mileage was 13,000 and current mileage was 44,000.
04/13/20059001204/13/2005
 Tl*the contact owns a 2005 chevrolet trailblazer. the contact stated that the vehicle surged forward approximately four feet while in the idle position. the dealer inspected the vehicle four times and was unable to duplicate and diagnose the failure. the manufacturer informed the dealer to reprogram the computer. the computer was reprogrammed, but the failure still persisted. the current mileage is 37,000 and failure mileage was 900.
11/11/2005111/11/2005
 When i brought this car it started to give me problems. what type of problems you ask problems with the motor and injections. i called many times to the dealership i talked to a guy named henry palacios and he never gave me a solution to my problem. i had full cover on my vehicle but they told me that it didn't cover the problems that my car had. the same date that i brought the vehicle i went out of town and the car completely stop in the middle of the street. *nm
08/15/2005103/25/2005
 My chevy trailblazer 2005 has been giving me problems not much after of leasing the suv on 3/25/05. not sure what day was when i got into the accident in august but it was cause do to the brakes. when backing up, i hit into my brother's truck and i couldn't stop so i kept on smashing more into my brother's truck. not lately i am having eletrical problems too. my engine light comes on and when it does the whole suv shakes badly. don't understand why all of these problems are happening. i just want to get out of this lease and live! *nm
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
07/29/201199000
 Started smelling exhaust fumes in the cabin of the truck. shortly after this began, the truck exhaust started getting louder. dealer diagnosed as cracked exhaust manifold. cost over $1,000 to repair. dealer would not warranty.
01/01/200929000
 Just after purchasing the vehicle on december 29, 2008, i noticed the engine has accelerated and the car surges forward when stopped. if i do not keep my foot on the brake, there is a high potential of surging into the back of a vehicle in front of me. an accident has almost happened many times. i have had it looked at by the dealer i purchased the vehicle from on february 4,2009 and was told there is not a problem. it most likely will not be a problem until i rear end someone while stopped. this continues to happen on a regular basis, a year and a half later. i was not aware i had an opportunity to report until the toyota recall happened. i have been living with it, anticipating the surge every time i am at a stop.
09/15/2008636311
 When i bought this vehicle 2 months ago, i thought the gas gauge was empty upon purchase, as it was a used car, but no it is the fuel system problem that everybody keeps mentioning. i fill the vehicle, and it only shows a half tank. then it will go to empty with the warning light coming on. as someone who travels a lot, and for long distances, this is a horrible defect. the exhaust manifold has become loud, which means another expense on a 2005 which shouldn't be happening. *tr
03/15/200854100
 Tl*the contact owns a 2005 chevrolet trailblazer. whenever the contact started the vehicle, she noticed that the exhaust system was very loud. the vehicle was taken to a local mechanic shop and they stated that there was a crack in the exhaust manifold. the vehicle was also diagnosed by the dealer for the same failure. the contact did not notice any differences beforehand. the current mileage was 68,239 and failure mileage was 54,100.
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
03/07/2007409/14/2005
 In march 2007 the check engine light came on and stayed on . i took vehicle to dealer to have it checked out. it turned out to be the secondary air pump either clogged, not running or something electrical with it. ever since then all the exterior and interior lights became bright then dimmed for a few minutes when i start the vehicle. after leaving for work and stopping the vehicle to turn, and then again a few miles down the road, the headlamps started to flicker. sometimes it flickered a few more times before i got to work , only 25 minutes from home. i have noticed the battery gauge fluctuated while this is happened. i was told that this was normal. also, i am not sure this was related, but ever since the check enginelight problem the air conditioning system did not work properly. it didn't work on 5, but it did blow some on the other levels, and that varied too. i have had the air conditioning recharged, to no avail, it acted like there was a leak somewhere. hopefully ,gm or someone else will find the solution before there was an electrical fire or even a case of road rage due to other drivers thinking i wa s flashing the bright lights at them. *ak
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
09/30/2005109/29/2005
 Dt: the consumer states that the tail pipe is to sharp on the 2005 chevrolet trailblazer. the consumer'sson had fell and slid under the truck and cut his leg on the tail pipe. he had 18 stitches in his leg. the consumer has not contacted gm about the design of the tail pipe. the dealership has been contacted , and they told him to look in the back of the owner's manual and call them.*ak