2011 Chevrolet Avalanche 1500 Engine Problems
- Complaints
- 3about this part
- Share
- 11%of 28 total for the year
- Median mileage
- 34,256miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2011 Chevrolet Avalanche 1500, 11% of the 28 complaints for this model year. Where a mileage was given, the median is 34,256 miles.
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“Service stabilitrac system indication comes on, with check engine light, and engine power reduced. Happens randomly, cannot find a common cause spent lots of money on PCM, bcm, memory seat module, battery cables, battery, brake light switch, etc. Etc. Dangerous condition when vehicle drops into power reduction mode.”
NHTSA complaint #11180729, filed 2019-02, 65,000 milesRelated service bulletins
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 11012907Dec 18, 2024This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11011205Oct 28, 2024This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- 11010544Oct 7, 2024This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 11010490Oct 5, 2024This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 11009532Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
Engine: other model years
Other parts of the 2011 Chevrolet Avalanche 1500
11 complaintsOther or unknown
11 complaintsElectrical system
4 complaintsBody and structure
4 complaintsElectronic stability control
3 complaintsTransmission and drivetrain
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 30, 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