Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ELECTRICAL SYSTEM
SB-09-06-03-004A09/01/2009SB-09-06-03-004B10032332Gm/hummer/saab: intermittent illumination of mil, service lamps, service messages, or dtc set by various control modules-diagnosing and repairing fretting corrosion (disconnect affected connector and apply dielectric lubricant).03/05/2010
ELECTRICAL SYSTEM - WIRING
SB-09-06-03-004A09/01/2009SB-09-06-03-004B10032332Gm/hummer/saab: intermittent illumination of mil, service lamps, service messages, or dtc set by various control modules-diagnosing and repairing fretting corrosion (disconnect affected connector and apply dielectric lubricant).03/05/2010

Consumer Complaints


Fail datemilesoccurencesPurchase date
ELECTRICAL SYSTEM
10/03/2012435001
 Instrument cluster stopped working. i can no longer judge speed. tires cracked and dry rotted on sidewalls and had to be replaced at early mileage. *tr
10/03/201243500
 Instrument cluster stopped working. i can no longer judge speed. tires cracked and dry rotted on sidewalls and had to be replaced at early mileage.
07/01/20121500001
 Air conditioner quit working on level 5, would work on level 1-4, level 5 would keep turning off. shortly after this within the same day i could smell something burning coming through the air vents. mechanics noted and showed me that the resistor plugs on the back had burned and melted together, that's what was causing the burning smell. needed a new resistor, pig tail, and blower. also my fuel gauge and rpm are broke, have not been working for the past 3 years. *tr
07/01/2012150000
 Air conditioner quit working on level 5, would work on level 1-4, level 5 would keep turning off. shortly after this within the same day i could smell something burning coming through the air vents. mechanics noted and showed me that the resistor plugs on the back had burned and melted together, that's what was causing the burning smell. needed a new resistor, pig tail, and blower. also my fuel gauge and rpm are broke, have not been working for the past 3 years.
11/01/201163191
 The speedometer fails to represent true vehicle speed. using a gps we can monitor the inaccuracy in the gauge reading. the speedometer reflects a speed of 25 when actual speed is 45. this becomes worse as the vehicle is driven as the speedometer completely fails to register speed. an identical issue was pr3esent on a 2003 cheverolet truck we own which was repaired by gm under an in-house program resulting from a lawsuit. gm has declined to repair this same problem on this model. if a driver cannot accurately determine his/her spped at any given moment the possiblility for safety related instances are increased for the driver and others.
07/16/200760000
 Bought my 05 envoy xl with about 55000 miles since then the fuel gauge reads empty when its full. the oil pressure gauge is maxed out but it will work normal every once in a while. the speedo reads faster than im going or just maxes out. if i turn the cr off and on it will work its way back to normal for awhile. the stereo will not work if it is colder than 60 degrees out. talked to dealership and gmc customer service they did nothing.
01/17/201162000
 I have a 2005 envoy and i am having issues with the fuel gauge and the speedometer cluster. i fill up the tank and it does not read full, it continues to read empty. while driving my son back to school with my three small children in the car the speedometor just stopped working. it was showing that i was going 120 miles when i was only going 40 ish. the other thing that shocks me is that there has not been a recall on these issues. it has to be some sort of defect because there are so many consumers with the same issues.
01/20/201160000
 I have a 2005 gmc envoy and i have had to replace a water pump, a blower motor wiring harness that melted into my truck, the lights are half out on me heater and my door panel where you put the windows up and down, the winshield wiper in the back works when it wants my speed ometer is stuck on 40 even when its off and my check engine light is on and i bought this truck less than 2 years ago!
05/07/2010218000
 2005 gmc envoy smoke from under the dash then the blower quit blower motor resister burned up and melted wireing harness and plug at at the resister did not blow fuse replaced resister and harness 3 months later burned up resister again and harness still did not blow fuse contacted dealer they told me to change the same parts that theyve seen it befor i resaerched the wireing and consaulted a electical enigenerr he said the problem was at the blower motor becuas the resister was between the switch and the motor if the motor was worn and pulling to many amps that it would burn the harness and resister so i replaced all three items and have not had a problem since.
10/04/201082000
 2005 gmc envoy speedometer failure. while driving the envoy over stevens pass ( washington state) the speedometer began reading a signicantly lower speed than my wife was driving...at first she tried to speed up fearing that she had absentmindedly began to slow but soon realized that the speedometer continued to reflect even lower speeds. after going to the internet i've discovered that this has been an ongoing problem with gm trucks for the years 2003 thru 2007 and actually there has been a class action lawsuit filed. ( i don't know the disposition) the remedy is replacing the entire gauge cluster at a cost of around $500. seems unfair considering this is a problem of gms' and apparently kept secret while charging their customers for their problems . hope you can resolve this issue, thanks, frank
01/01/2010660001
 Speedometer on my 2005 gmc envoy xl is pegged at 120 mph and stays there all the time even when the vehicle is off. i understand that this is a wide spread problem with gmc products. there is a service bulletin for this problem on many gmc products but dose not include the envoy line. why is this? no accident so far but very unsafe driving a vehicle where you have no idea of how fast you are going. *tr
08/01/20081
 I bought a used 2005 gmc envoy xl a year ago and after three months of owning it the speedometer has quit on me while driving down the road. i drive on the interstate everyday to go to school and never know what speed i am actually traveling. at stop signs my car has jumped forward on me several times. lately the car has been shutting off for no reason. my husband is a mechanic and can not figure out what is causing this problem. we contacted a gm dealership and was told that my car and the chevy trailblazers come in with this problem all the time. we were told it would cost us between two and three thousand dollars to fix it. we can't afford that kind of money to fix something that should be fixed by general motors. it's their defect! someone is going to get seriously hurt. this is something that i have to deal with everyday while driving my two kids around. *tr
12/01/2008500001
 Gas gauge reads empty at most times, never gives accurate measure of tank fill. also check engine light turns on sporadically, although diagnosis by engine tech confirms no bad codes are causing this warning light to glow. research on the internet and talking with dealerships and mechanics have confirmed that this is a very common defective part problem that gm has not issued a recall on. hundreds, probably thousands of frustrated drivers. it effects gmc envoys, chevy trailblazers, and other gm makes in 2004 - 2006. thank goodness taxpayer dollars are keeping them afloat! god forbid they actually support their products and maintain customer loyalty and integrity! *tr