Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
3104A3104B100099766-speed shifter rattle growl buzz noise. *sc11/02/2004
POWER TRAIN - AUTOMATIC TRANSMISSION
09-07-30-004F03/01/2012SB-0907-30-004-G10043845Gm: slips in reverse or third, delayed reverse or drive engagement, dtc p0776, p2715, p2723, harsh 2-3 shifts (inspect 1-2-3-/ 3-5-r housing and pump seal rings). this condition may be caused by a cracked 1-2-3-4/ 3-5-r clutch housing. *j04/30/2012
09-07-30-004F02/01/201210043845Gm: slips in reverse or third, delayed reverse or drive engagement, dtc p0776, p2715, p2723, harsh 2-3 shifts (inspect 1-2-3-/ 3-5-r housing and pump seal rings). this condition may be caused by a cracked 1-2-3-4/ 3-5-r clutch housing. *j04/30/2012
PIP-439508/01/200810026149Gmc: flare and or harsh 2-3 shifts. this condition may be caused by leaking 1-2-3-4 and 3-5-r clutch fluid seal rings (230). models cadillacs, chevrolets, gmc, hummers, pontiacs. equipped with 6l80 (rpo myc) or 6l90 (rpo myd) automati10/02/2008
40524052A100227942-3 upshift slip or flare. *kb09/27/2007
07073001505/01/2007100218456t70, 6t75, 6l50, 6l80, or 6l90. automatic transmission - information on transmission fluid pressure (tfp) switch check for false dtc's p0842, p0843, p0872, p0873, p0877, p0878, p0989, or p0990. *kb06/22/2007
03073000712/01/2006030730007C10021103Delayed engagement when shifting into these positions. park into reverse, nuetral into drive, nuetral into reverse, and park into drive. this bulletin includes all 2000 - 2007 gm light duty trucks. *kb03/05/2007
36493649C10021082Automatic transmission, busy shifting, mil illuminated, dtc p1751. *kb03/01/2007
06073003111/01/200610020767Diagnosis for service fast learn adapts fails, no forward or no reverse, dtc p0796, p2723, p2763 set. *kb01/08/2007
06073000205/01/2006060730002A100194836l80 automatic transmission delayed engagement from park to drive or park to reverse. *tt updated. *kb03/16/2006
05073002209/01/2005100178282006 model year 6l80 automatic transmission exchange program. *tt12/02/2005
030730007A08/01/2005030730007B10005577Engagement time of electronically controlled transmissions in general motors vehicles. various models including 2000-2006 all light duty trucks. *tt03/04/2004
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
411204/01/2009PIP-4112H10023432Sag or hesitation on acceleration (normal operating characteristics). equipped w/ gasoline engine and automatic transmission. *nj updated 1/30/08. *nj updated 10/01/08. *pe updated 8/12/09. *pe12/11/2007
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
3735100198656l80 leak from the transmission cooler lines. *ak05/05/2006
POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER
430212/01/200710023771Dtc p0751, p0756, p0776, p0796, p2714, p2723, harsh tcc engagement. equipped with 6l80 (rpo myc) automatic transmission. *nj01/31/2008
POWER TRAIN - AXLE ASSEMBLY
355909/30/20083559F10016945Rear axle chatter shudder on turns. *sc updated. *kb updated 9/30/08. *pe10/18/2005
POWER TRAIN - CLUTCH ASSEMBLY
0652303/01/200610019932Engine flywheel / clutch interference. *tt05/16/2006
POWER TRAIN - CLUTCH ASSEMBLY - PEDAL/LINKAGE
426912/01/20074269A10023859Clutch pedal sticks to the floor and will not return - on a manual transmission. *nj updated 2/27/08. *nj02/07/2008
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
07042000201/01/2008070420002A10022263Rear axle clunk and/or chatter type noise on turns (drain/refill rear differential fluid). *kb updated 4/11/08. *nj07/24/2007
POWER TRAIN - DRIVELINE - DRIVESHAFT
05049500111/01/200510018743Rear wheel drive shaft nut torque specification requirements and information on replacement shafts for service. *ak01/12/2006

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
11/01/201124000
 The support bearings in the torque tube for the drive shaft failed. this causes a vibration noise of variable intensity. a simple investigation of the problem revealed that this is a problem with the c6 models.
POWER TRAIN - AUTOMATIC TRANSMISSION
06/13/200715000204/19/2006
 Took the car in for an oil change and when i picked it up, they added 2 quarts of transmission fluid to the car. didn't think much of it and left. 5000 miles later, while entering the freeway, the engine light came on and the car stalled. went from 45 mph down to 5-10 mph, the steering wheel locked and i was about 3 seconds away from being rear ended by an 18 wheeler. the car was towed to the dealer and i advised them to call me with the diagnosis. they called and said my transmission solenoid was defective and needed to be change. i thought about the 2 quarts of fluid and thought to myself, why was it low and did this cause the breakdown? i called and told them not to touch the car until i was present. went to dealer, the 32 year experienced transmission specialist checked the level of fluid and oh my god, it is very low again. i had their service manager come and told him i wanted a gm rep to inspect my car before any repairs where done to it and that he did not have my consent to repair the vehicle. 8 days later the service manager calls and says i fixed your car, the fluid was never low and come pick up your car or i will charge you storage and rental if you don't. i called gm and them talk to this guy and beg him to leave the car at the dealership until a rep was available, and he said no way, i want this car out of here. so i go to pick up the car and noticed the repair invoice did not indicate the fluid was low and i asked him to fix it and he refused and said the 32 year gm transmission specialist made a mistake and needed to check the manual on how to check the fluid level. he then offered me and extended warranty and agreed to say on the invoice that the fluid level was low. to date no one can tell me why the fluid was low the first time or the second time. the dealers only explanation is that the car came from the manufacturer missing 2 quarts of transmission fluid. contacted gm and bbb and just went to arbitration and waiting for verdict. *jb
POWER TRAIN - AXLE ASSEMBLY
03/07/20064191111/21/2005
 Dt*: the contact stated the passenger side rear axel failed multiple times. the first failure occurred on november 26, 2005 at 357 miles. while driving over a pothole the rear axel fractured. the second occurrence was on december 13, 2005 at 1,305 miles. the third was on january 11, 2006 at 2,316 miles. after each failure the rear axel was replaced by a dealership and the part number of the replacement axel was different. the contact felt the change of part numbers could have reflected a different axel manufacturer. while driving at 35mph on march 7, 2006 the rear axel broke again. the vehicle is awaiting repairs at an independent repair shop.
POWER TRAIN - MANUAL TRANSMISSION
04/27/20075010004/24/2007
 Tl*the contact owns a 2006 chevrolet corvette. while driving 15-20 mph, the contact was unable to shift into second gear. the failure forced him to shift into fourth gear. the dealer stated that the vehicle was designed in that manner for caf