Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| PB-12138 | 10/01/2012 | 10047639 | Cadillac/chevrolet/gmc: if transmission dipstick tube becomes fatigue and fracture, while in afm mode, it causes a ticking or rattling noise from front of vehicle, when engine vibrates. models 2010-2011 all escalade, esv, ext; avalanche, | 12/05/2012 | |
| PI0522B | 04/01/2012 | 10044233 | Gm: tick or rattle noise from front of dash, transmission filler tube cracked or broken (inspect filler tube, replace tube as necessary). *js | 05/23/2012 | |
| PIP-3366-B | 11/01/2011 | 10043185 | Cadillac/chevrolet/gmc/hummer: some suvs and trucks are exhibiting a condition where by grinding/ratcheting type noise coming from automatic transmission when shifting into park while in 4wd low (4lo) range. *pe | 02/29/2012 | |
| PI-0041D | 10/01/2011 | 10042286 | Cadillac/chevrolet/gmc: certain model vehicles my 2010-2012, the transmission has developed a leak in the rear. *pe | 12/05/2011 | |
| PI-0320 | 12/01/2010 | 10037895 | Ready | 06/07/2011 | |
| PI-0320 | 12/01/2010 | 10037895 | Gm: there are complaints of certain gears not working or no reverse. there is also a possibility of two internal trouble codes. *rm | 06/07/2011 | |
| PIP-4831B | 11/01/2010 | 10037506 | Gm: malfunction light is on and the transmission may not shift correctly. *rm | 05/25/2011 | |
| PIP-4831B | 11/01/2010 | 10037506 | Ready | 05/25/2011 | |
| PI-0310 | 11/01/2010 | 10037409 | Ready | 05/23/2011 | |
| PI-0310 | 11/01/2010 | 10037409 | Gm: there are transmission problems that include trouble shifting and noises. there may be serpentine belt problems causing it. *rm | 05/23/2011 | |
| PIE-0124 | 11/01/2010 | 10037281 | Ready | 05/17/2011 | |
| PIE-0124 | 11/01/2010 | 10037281 | Gm: there is a transmission fuel leak from the oil pump area. *rm | 05/17/2011 | |
| PIP-4817 | 08/01/2010 | 10036548 | Cadillac/chevrolet/gmc: (hybrid) information on internal transmission wiring harness repairs. diagnostics of any one of or combination of the dtcs listed may lead to a internal transmission wiring harness concern. transmissionwiring har | 03/28/2011 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM) | |||||
| 08-07-30-021G | 03/01/2012 | 10043829 | Gm: loss of high speed gmlan communications, intermittent no crank, ip gage fluctuation, intermittent door look cycling, intermittent chime operation, various ip warning lamps illuminated, transmission may not shift, communication dtcs u007 | 04/27/2012 | |
| PI-0488 | 06/01/2011 | 10039489 | Ready | 08/01/2011 | |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| PI-0320 | 12/01/2010 | 10037895 | Gm: there are complaints of certain gears not working or no reverse. there is also a possibility of two internal trouble codes. *rm | 06/07/2011 | |
| PI-0320 | 12/01/2010 | 10037895 | Ready | 06/07/2011 | |
| PI-0298 | 11/01/2010 | 10037407 | Gm: when driving uphill the transmission may not shift out of first or will slip into second gear due to a torn clutch seal. there may be two internal trouble codes stored. *rm | 05/23/2011 | |
| PI-0298 | 11/01/2010 | 10037407 | Ready | 05/23/2011 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 12/10/2012 | 28000 | ||
| Tl* the contact owns a 2011 gmc sierra. the contact stated that the vehicle was parked in a residential driveway when it rolled away in reverse and into the street. a crash did not occur. the vehicle was taken to the dealer for inspection but they were unable to diagnose the cause of the failure. the vehicle was not repaired. the manufacturer was notified and did not provide any assistance. the failure mileage was 28,000. the vin was unavailable. | |||
| 12/10/2012 | 28000 | ||
| Tl- the contact owns a 2011 gmc sierra. the contact stated that the vehicle was parked in a residential driveway when it rolled away in reverse and into the street. a crash did not occur. the vehicle was taken to the dealer for inspection but they were unable to diagnose the cause of the failure. the vehicle was not repaired. the manufacturer was notified and did not provide any assistance. the failure mileage was 28,000. the vin was unavailable. kmj | |||
| 12/10/2012 | 28000 | ||
| Tl- the contact owns a 2011 gmc sierra. the contact stated that his vehicle was parked in his driveway and the vehicle rolled backwards into the street. the vehicle did not crash into anything. the vehicle was taken to the dealer for inspection but they could not diagnose the cause of failure. the vehicle was not repaired. the manufacturer was notified and they did not provide any assistance. the failure mileage was 28,000. the vin was unavailable. ap | |||
| 06/26/2012 | 11300 | ||
| There is play in the rear axles that emit a clunking noise when i am slowly backing over a grade with the steering wheels turned. i demonstrated play in the rear axles to the gmc factory rep and he said the axle play is within tolerances. my contention is that the noise is not normal and that the grooves in the differential end or the axles that accept the horseshoe shaped keeper clips are machined incorrectly and putting excessive stress on the clips. eventually the clips will fail resulting in the wheel coming off. i further argue that if the axle play is indeed within tolerances then the tolerances are wrong. i tried to make the incorrect tolerance argument to the factory rep by making an analogy to the corvair and he missed my point. the rear suspension on the corvair was also within tolerances and many people died. | |||