2011 Chevrolet Avalanche 1500 Transmission and drivetrain Problems
- Complaints
- 3about this part
- Share
- 11%of 28 total for the year
- Median mileage
- 30,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the transmission and drivetrain of the 2011 Chevrolet Avalanche 1500, 11% of the 28 complaints for this model year. Where a mileage was given, the median is 30,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving my truck at about 45 MPH when the traction control light came on the dash and my truck suddenly went from 45mph to 20 MPH and the motor began to miss fire and buck. If there would have been someone following me they would of hit me in the rearend due to the sudden slowing of my vehicle.”
NHTSA complaint #10683629, filed 2015-02, 34,256 miles“When slowing down the vehicle surges forward even when brake is being applied. It does not appear to be related to engine surge as it does with sudden gear change as if the vehicle is speeding up from a stand still. This occurred as I was turning into a parking space which caused the vehicle to veer uncontrollably to the right (was making a left hand turn into parking space) and hit a brick column. It has also happened when coming to a stop and persons were about to walk across road scaring them and me! The vehicle continues to experience these same issues. …”
NHTSA complaint #10593573, filed 2014-05, 1,800 miles“I was in line at a drive through at burger king and as I pulled up to the cashiers window to pay for my food the engine started to accelerate. I put my foot on the brakes as hard as I could while the truck was shaking and lurching trying to go forward. I can't say for sure how high the tachometer was, but it seemed to almost peg for a few seconds while this was going on. Finally I jammed the transmission into neutral and the engine returned to normal idle. I say jammed because it took great strength to get it out of drive. For about 10-15 seconds this truck was totally out of my control. …”
NHTSA complaint #10593395, filed 2014-05, 30,000 milesRelated service bulletins
- 11011205Oct 28, 2024This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- 11009756Sep 17, 2024This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and…
- 11009088Sep 16, 2024This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 11005311Jul 9, 2024This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10248721Dec 18, 2023This bulletin advises the technician that the 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit part number 24236933 is currently transitioning from a…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2013 | 1 | 3% |
| 2011 | 3 | 11% |
| 2009 | 3 | 15% |
| 2008 | 1 | 3% |
| 2007 | 10 | 9% |
| 2006 | 12 | 31% |
| 2005 | 17 | 13% |
| 2004 | 5 | 3% |
| 2003 | 4 | 2% |
| 2002 | 6 | 4% |
Other parts of the 2011 Chevrolet Avalanche 1500
11 complaintsOther or unknown
11 complaintsElectrical system
4 complaintsBody and structure
4 complaintsElectronic stability control
3 complaintsEngine
3 complaintsVehicle speed control
2 complaintsBrakes
1 complaintsEngine cooling
1 complaints
← All problems reported for the 2011 Chevrolet Avalanche 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology