Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| POWER TRAIN - AXLE ASSEMBLY | |||||
| 09-04-17-002E | 01/01/2011 | 10037552 | 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 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 02/18/2013 | 62456 | ||
| So i was sitting at a red light, everything was cool.. and when i started to accellerate the truck almost felt like we got rear-ended. then when i tried to accelerate it felt like it had slipped into neutral. drive is completely dead, when i put it | |||
| 01/21/2013 | 78267 | ||
| I am a soldier with 17yrs of active duty service and i was home over the weekend for the mlk weekend with my family. i leave monday morning about 0900am to return back to my home station and my truck was driving fine, i stopped at a red light to make a left turn and when the light turned green i accelerated to about 5-10mph then there was a clunking noise and my vehicle would not accelerate anymore it would just send the rpms up so i drifted off the road and put my vehicle in park because i just had my vehicle serviced. i checked all my fluids and they all were fine so i put my vehicle in reverse worked fine, selected drive and it wouldn't move, selected 3rd gear wouldn't move, selected 2nd gear truck would move, and selected 1st the truck would move. there i was with my wife and my 2 daughters and mother-n-law on the side of the road in nc, luckily we didn't get that far from my in-laws home and they called a local shop that towed my vehicle back to her home. i have always wanted an avalanche but i get on the computer and i start reading about other people who have had the same problem and that is shocking, and to happen under a 100k miles. this is not my 1st chevy vehicle i have owned as well, i have owned a chevy trailblazer ltz that the four wheeled drive went out on that i purchase for my wife, so i traded that in for the 07 trailblazer ss that my wife really loved and that vehicle ended having an electrical fire from the wiring harness and my vehicle sat down at the dealership for almost a month until i notified them that something has to happen in which they let me trade that vehicle in for a honda accord in which i haven't had any issues out of that my wife is currently driving. in my reading last night when i finally made it back home after borrowing a car from my nephew that just happens to be another honda accord and i see all these stories posted horrible. | |||
| 04/09/2012 | 57100 | ||
| Transmission failure with loss of drive, 3, and reverse gears. 2nd and 1st were slipping badly when returned to dealer. vehicle has approximately 57,100 miles and has never towed or pulled anything. vehicle is 2wd ltz model. | |||
| 12/31/2009 | 60000 | 1 | |
| In apr 2009 i took my 2007 chevy avalanche in for servicing. the check engine light was on and i had recall #0848 performed. this recall was to install a wire harness (heated washer fluid module shortcircuit). the catalytic converter and an 02 sensor was replaced. approximately aug/sept i had an odor in the vehicle (smelled like dirty feet or the interior carpet was wet for some time, without proper ventilation to dry. however, i thought that was odd as i was unable to locate any leaks inside the cab of the vehicle.) on or about oct 2nd, i was driving on the freeway and the check engine light came on and a message to turn off the engine which i did. after being towed to the dealership, i was told the engine had lost oil pressure and a sensor was replaced. immediately after the work was performed the smell went away but that same evening i was driving and the windshield wipers started going, fluid spraying, while in the off position. i had to turn the vehicle off to get it to stop. i immediately notified the dealer, since this has happened 2 or 3 times. the end of dec i took my vehicle in to the dealership for the intermittent wiper/fluid problem and i thought the transmission was slipping. they couldn't find an issue with the transmission and their diagnosis for the wiper unit was that the module was bad and needed to be replaced. they referred to bulletin #4298, dated 02/26/07, and part #1910885. it is my belief that all the failed sensors/parts are related to the recall and i am hoping the investigation to the recall is still open/on-going. fyi: within the first year of purchasing the vehicle my battery needed to be replaced after being inspected at the dealership. if i remember correctly there were several occasions i was unable to start the vehicle. there should be records on file at the dealership pertaining to this issue. lastly, i do have the part that was replaced as a result of the oil pressure sensor. *tr | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 10/19/2010 | 64400 | ||
| Tl. the contact owns 2007 chevrolet avalanche. the contact stated the vehicle started rolling backwards while the vehicle was in park. the vehicle was not parked on a hill or on elevated ground. the contact took the vehicle to a dealer and the dealer informed the contact about a tsb from the manufacturer. the tsb states some vehicle may rock or move forward while in park. this is due to the transmission fluid releasing from the clutch pad and this condition is normal. the contact stated this is not a normal condition and could have caused the vehicle to crash through the garage. the dealer stated there is no repair to be mad to the vehicle. the failure mileage was 64,400. jo | |||