Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 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 | |
| 09-07-30-001A | 03/01/2011 | 10038263 | Gm: when driving at highway speeds there may a shudder or bucking feel at highway speeds. *rm | 06/14/2011 | |
| 09-07-30-001A | 03/01/2011 | 10038263 | Ready | 06/14/2011 | |
| 09-07-30-004C | 01/01/2011 | 10037540 | Gm: there are harsh or delayed shifts at various operating times. *rm | 05/25/2011 | |
| 09-07-30-004C | 01/01/2011 | 10037540 | Ready | 05/25/2011 | |
| PIP-4837 | 10/01/2010 | 10037126 | Ready | 05/09/2011 | |
| PIP-4837 | 10/01/2010 | 10037126 | Gm: vehicles may have a shudder when driving with a cold transmission or in cold temperatures. *rm | 05/09/2011 | |
| 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 | |
| PIP-4686 | 08/01/2009 | 10032393 | Chevrolet/cadillac/gmc: hybrid driveability or customer concerns of flare, slip, stall at a stop, surge, lack of power, poor fuel economy, reduced ev range/limited electric propulsion, dtc p061b after campaign 09102b or dtc p061b prior to | 03/15/2010 | |
| SB-09241A | 10/01/2009 | 10032329 | Chevrolet/cadillac/gmc: transmission clutch housing fracture-reprogram transmission controller. excessive pressure on the transmission clutch could cause a fracture. may result in an improper transmission shift when shifting from third t | 03/05/2010 | |
| PIT-4846A | 05/06/2009 | 10030244 | Cadillac/chevrolet/gmc: locations of high speed gmlan wiring concerns. gauges inoperative, no crank, harsh transmission shifting, no transmission shifting, door locks cycling and indicators on. *pe | 09/02/2009 | |
| PIP-4420B | 08/01/2008 | 10026651 | Gmc: certain two-mode hybrid vehicles may not start due to loose pin fit or backed out terminals. *pe | 11/24/2008 | |
| 08-07-30-021 | 05/01/2008 | 10025668 | Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, u0121, u0140 set (repair backed out terminal in transmission | 08/28/2008 | |
| 08-07-30-023 | 05/01/2008 | 10025670 | 4l60-e/4l65-e/4l70-e automatic transmission fluid leak from oil pump or bell housing area (replace torque converter hub-to-oil pump seal assembly). attn: this bulletin applies to vehicles built prior to december 2007. *pe | 08/28/2008 | |
| PIP4374 | 08/01/2008 | PIP4374B | 10025011 | (hybrid) inspect transmission three phase cables for adequate clearance to body. *nj updated 11/24/08. *pe | 06/26/2008 |
| 4292 | 12/01/2007 | 10023772 | Dtc p0756, p0796, p2714, p2723, tcc shudder or harsh engagement, harsh shifts, water in transmission - keywords code converter fluid torque. equipped with 6l50, 6l80 or 6l90 (rpo's myb, myc, myd) automatic transmission. *nj | 01/31/2008 | |
| 4052 | 4052A | 10022794 | 2-3 upshift slip or flare. *kb | 09/27/2007 | |
| 4168 | 4168A | 10022429 | Low power, poor performance, or busy shifting. *kb updated 09-26-07. *kb | 08/13/2007 | |
| 3136 | 3136K | 10021019 | Slip condition in 2nd, 3rd, or 4th. damaged 2-4 or 3-4 clutch. *kb updated 10/31/07. *nj | 02/22/2007 | |
| 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 | |
| PIP-4653B | 09/01/2009 | 10032434 | Buick/chevrolet/hummer/gmc/pontiac/cadillac/saturn: technicians may find dtcs p0601, p0603, p0604, p062f or p1621 stored in the tcm as an active or a history code. some of these dtcs can also be set in the ecm or fpcm. make sure that you | 03/24/2010 | |
| SB-07-06-04-019A | 11/01/2008 | 10028831 | General motors: intermittent mil/ses/ dtc p2138 with reduced engine power (repair instrument panel (ip) to body harness connector). 2005-08 gm passengers cars/light duty trucks (incl. saturns). *pe | 06/01/2009 | |
| 08-07-30-021 | 05/01/2008 | 10025668 | Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, u0121, u0140 set (repair backed out terminal in transmission | 08/28/2008 | |
| 08-07-30-021 | 04/01/2008 | 10025402 | Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, 70140 (repair backed out terminal in transmission harness co | 08/06/2008 | |
| PIP4329 | 02/01/2008 | 10024225 | Current or intermittent dtc p0741 tcc stuck off. equipped with 4l60e, 4l65e or 4l70e (rpo m30, m32, m70) automatic transmission. *nj | 03/27/2008 | |
| 4112 | 04/01/2009 | PIP-4112H | 10023432 | Sag 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. *pe | 12/11/2007 |
| PIP4219 | 02/01/2008 | PIP4219B | 10022916 | Diagnosis for service fast learn adapts fails, no forward or no reverse. *nj updated 4/1/08. *nj | 10/04/2007 |
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||||
| PIP-4424 | 06/01/2008 | 10026664 | Gmc: leak from transmission oil cooler line fitting on vehicles built in april or may, 2008. *pe | 11/25/2008 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER | |||||
| 4302 | 12/01/2007 | 10023771 | Dtc p0751, p0756, p0776, p0796, p2714, p2723, harsh tcc engagement. equipped with 6l80 (rpo myc) automatic transmission. *nj | 01/31/2008 | |
| POWER TRAIN - AXLE ASSEMBLY | |||||
| 09-04-21-003D | 01/01/2011 | 10037544 | Gm: when stopping or accelerating there may be a clunk noise and its as if the vehicle is bumped from behind. this can be caused by a slip in the rear propshaft. *rm | 05/25/2011 | |
| 09-04-21-003D | 01/01/2011 | 10037544 | Ready | 05/25/2011 | |
| 09-04-17-002E | 01/01/2011 | 10037552 | Gm: there may be a bump noise or clunk feel when stopping or launching. this may be caused by a slip in the transmission. *rm | 05/25/2011 | |
| 09-04-17-002E | 01/01/2011 | 10037552 | Ready | 05/25/2011 | |
| POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT | |||||
| 070417002 | 10/01/2007 | 10023936 | Whine type noise coming from rear of vehicle (diagnose and replace rear propeller shaft). *nj | 02/20/2008 | |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| PIP4304 | 02/01/2008 | PIP4304A | 10024346 | Dtc p0878, p2714, p2723, transmission slips in 1st, 2nd, 3rd, or 4th gears and/or long garage shifts to drive, equipped with a 6l50 (myb), 6l80 (myc), or 6l90 (myd) transmission. *nj | 04/07/2008 |
| POWER TRAIN - MANUAL TRANSMISSION - SHIFT PATTERN INDICATOR | |||||
| PIT4575 | 02/01/2009 | PIT-4575B | 10024212 | (hybrid) vehicle stalls when shifted out of park. with rpo hp2. *nj updated 12/3/08. *pe updated 8/19/09. *pe | 03/24/2008 |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 09/22/2008 | 500 | ||
| This is in regards to gmc bullitin #pip4112j : sag or hesitation on acceleration (normal operation characteristics) - (jul 21, 2011) i've been having this problem since day one and took the suv to many dealers but dealers could not verify the concern until now. the 2008 gmc yukon xl denali would stop accelerating for 2-3 seconds when the gas paddle is pressed. most of the time it is when i am trying to pass a lane, trying to enter highway, trying to climb a mild hill or trying to avoid a potential accident. after the delay, the transmission would down shift and i think it down shifts to either 1st or 2nd gear causing the suv to roar like crazy and shoots out like a cannon. i had an incident where the cops gave me a warning with the lights and siren probably thinking that i was driving recklessly. there were also incidents where i've had the gas paddle pressed down about 80%-90% trying to climb a mild elevation and either the engine and or transmission started to choke. it was so bad that the denali almost came to a full stop. you really have experience this on your own to understand how scary and nerve wrecking it is when you have vehicles about to ram you from behind because the suv simply would not accelerate. many times, i had to swerve back in to original lane in fear of causing a serious accident. because of this, i don't even let my wife drive the vehicle. service manager was kind enough to research on this matter and found bulletin #pip4112j and he can't really do anything. i've been explained that due to large power from the engine, he has seen the rear of the vehicles break apart. i fully understand the service manger's position on this but i think this is a major safety concern and someone can seriously get hurt by this. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 10/15/2008 | 60000 | ||
| Tl- the contact owns a 2008 gmc yukon. while the vehicle was parked the ignition would not start. the vehicle was taken to the dealer three times and the battery was replaced twice. the third time the vehicle was towed to the dealer and the technician stated the battery was functioning and was unable to diagnose the failure. the approximate failure mileage was 60,000.ds | |||
| 08/18/2008 | 6350 | 1 | |
| On all 4 occasions, the 2008 yukon hybrid, lunges forward at low speeds, looses brakes, power steering and all power. every time it has to be towed to the dealer. this has happened 4 times since august 2008. the first time there was a fire in the fuse box, then while the dealer had the vehicle, it caught on fire again. the dealer keeps telling me that it is fixed and safe to drive. the yukon is back at the dealer and i am not taking it back. this vehicle is very dangerous and the government needs to look into this right away. i now have an attorney and we are contacting gm as well. *tr | |||