Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 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 |
| 4133 | 4133A | 10022769 | Transmission slips, will not shift, ses light may be illuminated. *kb | 09/26/2007 | |
| 3931 | 09/28/2006 | 3931A | 10021018 | No movement when the shift lever is moved to d4 or d3. normal operation when moved to d2 d1 or reverse. *kb updated. *kb | 02/22/2007 |
| POWER TRAIN - AXLE ASSEMBLY | |||||
| 4030 | 4030A | 10021676 | New design front axle side bearing adjusters. *kb | 06/15/2007 | |
| POWER TRAIN - DRIVELINE | |||||
| 070419001 | 06/01/2007 | 070419001A | 10022472 | Intermittent/inoperative four wheel drive, service 4wd system lamp on and dtc c0378 - front axle switch circuit signal invalid. *kb | 08/15/2007 |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| 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 - TRANSFER CASE (4-WHEEL DRIVE) | |||||
| 05-04-21-003 | 01/01/2008 | 050421003C | 10017464 | Service 4wd light illuminated, diagnostic trouble code (dtc) c0374 set. *tt updated 10/05/07. *nj inspect wiring harness to transfer case speed sensors, replace wiring harness. updated 7/18/08 *pe | 11/08/2005 |
| 3424 | 3424A | 10017299 | Electronic transfer case unable to complete shift. *tt | 11/02/2005 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 06/18/2008 | 36000 | ||
| Cracked dashboard on passenger side where airbag is fitted. upper lefthand side of airbag. traction control/stabilitrac system: service indicator warnings activate, switches from 2 wheel drive to 4 wheel drive high even though selector is in 2wd mode. the first occurrance of this was at 70k miles, then again at 90k. then again at 97k the transmission was damaged and needed to be replaced. again at 101k miles the ringgear in the rear axel was destroyed. rear axel was replaced. fith time for those counting, 116k miles service stabilitrac and service traction control warnings, switching from 2wd to 4wd high while moving, while parked, selector in 2wd position with someone at the wheel or cab empty. evaporative emmission control warning. check engine light on, code comes back to eec. indicating a leak in the return line. the first time this was replaced at 70k miles, this is the second time. and no it is not the gas cap being loose or needing replaced. the first time there was water in the connector (yeh sure) | |||
| 11/18/2011 | 117000 | ||
| Transmission failure, no warning signs. vehicle felt like it popped out of gear. truck does nothing in drive, only moves in reverse, 1st, and still does major slipping. online research has informed me that this is a common issue among this type of truck. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 08/19/2007 | 16000 | 3 | 04/07/2007 |
| Tl*the contact owns a 2007 chevrolet avalanche 1500. the contact stated that his transmission failed while driving approximately 55 mph. when the accelerator pedal was engaged the transmission acted as if it were in neutral and the vehicle failed to move. the dealer replaced the transmission at 16,000 miles. when the second failure occurred a rebuilt transmission was installed at 26,000 miles. the current and recent failure mileage was 36,000 and the dealer stated that they have to install a rebuilt transmission. the manufacture was notified and the vehicle will be repaired per the warranty. the first failure occurred at 16,000 miles. updated 10/30/09 *bf the transmission would not go beyond first gear. an internal fault was found in the transmission. there was damage to the input housing at the pump cover seal area. the blower motor was inoperative. the power steering shuddered at low speeds. the hydraulic pressure line was replaced. updated 10/30/09.*jb | |||
| 09/01/2007 | 33856 | 1 | 01/08/2007 |
| While driving on the highway about 70-75 miles a hour, passing another vehicle, the passing gear engaged, then there was a loss of power to the vehicle. once the truck got under 40 mph you have no drive gear only 1,2, or 3rd gear will get you moving. vehicle lost 4th gear.*jb | |||
| 07/09/2007 | 27673 | 1 | 07/28/2006 |
| Complete transmission failure at 27,000 miles. old part referenced as sun gear or sprag gear breakage between 4-wheel driver transfer case and transmission. part failed under acceleration nearly causing a crash. transmission would not engage gears except park. vehicle could not move under its own power. part is under back order and will take an unknown amount of time to fix. other owners are experiencing the same problem around the same mileage. gm was unresponsive to this common problem. *ak | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - PARK/NEUTRAL START SWITCH | |||
| 09/30/2007 | 1 | 09/14/2007 | |
| When ignition is engaged to start vehicle a loud bang occurs in the transmission and vehicle jumps in reverse for a split second. problem is intermittent and continues to occur. *tr | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER | |||
| 02/07/2008 | 22799 | 1 | |
| Transmission failure at 22,000 miles. *tr | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| 08/03/2007 | 12832 | 1 | 10/01/2006 |
| Tl*the contact owns a 2007 chevrolet avalanche 1500. while driving 65 mph, the contact noticed white and black smoke through the rear view mirror. the brake pedal extended to the floor when it was applied. the vehicle was towing a trailer at the time of the failure. the contact was able to stop the vehicle using the electric brake controller for the trailer. he noticed fluid dripping from the rear axle, which then caught fire. the fire department extinguished the fire. the vehicle was towed to the dealer and they determined that a defective pinion seal caused the failure, however, the fire department determined that the failure was caused by synthetic rear axle fluid. the fire damaged the fuel tank, trailer, tailgate and driver side rear quarter panel of the vehicle. the current and failure mileages were 12,832. updated 01-16-08. *kb the consumer stated the rear axle caught on fire. the gas filler tube was also burned. the vehicle had 1800 dollars worth of damage. updated *jb | |||