2011 Chevrolet Impala Engine Problems
- Complaints
- 125about this part
- Share
- 25%of 505 total for the year
- Median mileage
- 77,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 125 complaints about the engine of the 2011 Chevrolet Impala, 25% of the 505 complaints for this model year. Where a mileage was given, the median is 77,000 miles. 3 of these say a crash was involved and 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving on the highway and received the following message, service stabilitrak - reduced engine power. This has come up a few times. This time though while still driving my engine power was greatly reduced with the error, starter disabled, service throttle . This LED to a drastic decrease in speed with zero control over throttle and moved to the shoulder and the car rolled to a halt.”
NHTSA complaint #11300986, filed 2020-01, 113,000 miles“While in motion my 2011 chevy Impala up a highway my vehicle dash will come up and say stabilitrak disabled traction control disabled then engine power reduced then the vehicle will begin to not steer correctly then I will have to pull over and restart the vehicle it then repeats itself after a short period of time”
NHTSA complaint #11192774, filed 2019-03, 88,000 miles“Service traction control and check engine lights came on this morning. Then a message saying my engine power is reducing. I just bought this car 3 weeks ago. I called GM customer service and they told me there was nothing they could do, even though there was a recall regarding this because it was over the 120000 mile warranty (but I just bought this car 3 weeks ago!!!)”
NHTSA complaint #10839873, filed 2016-03, 120,473 miles“Takata the problem that is wrong with my car is the engine power reduce is always come on and when I'm on the interstate or highway my speed reduce and my car can shut off at any time while driving and it can cause a bad wreck. The problem been happen for a minute now”
NHTSA complaint #11193505, filed 2019-04, 70 miles“I turned my car on to let it warm up after work, then started driving home. Then some lights popped on. It said service stabilititrak. It said that it was reducing engine power. Service control soon. It was very scary driving home. The car would take off by itself and it felt like it was stalling out. Its a fairly newer car 2011, I shouldn't be having these issues.”
NHTSA complaint #10678690, filed 2015-01, 103,000 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…
- 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.
- 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.
- 11009531Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 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…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 1 | 7% |
| 2019 | 2 | 7% |
| 2018 | 7 | 12% |
| 2017 | 21 | 18% |
| 2016 | 21 | 19% |
| 2015 | 19 | 6% |
| 2014 | 56 | 9% |
| 2013 | 30 | 11% |
| 2012 | 40 | 16% |
| 2011 | 125 | 25% |
| 2010 | 88 | 20% |
| 2009 | 179 | 22% |
| 2008 | 134 | 17% |
| 2007 | 77 | 12% |
| 2006 | 59 | 11% |
| 2005 | 30 | 5% |
| 2004 | 71 | 7% |
| 2003 | 88 | 13% |
| 2002 | 75 | 9% |
| 2001 | 68 | 9% |
| 2000 | 71 | 9% |
Other parts of the 2011 Chevrolet Impala
132 complaintsElectrical system
95 complaintsSeats
77 complaintsVehicle speed control
69 complaintsTransmission and drivetrain
64 complaintsOther or unknown
49 complaintsBrakes
39 complaintsAir bags
37 complaintsSteering
35 complaintsVisibility (wipers, defrost, mirrors)
28 complaintsFuel system
17 complaintsSuspension
17 complaints
← All problems reported for the 2011 Chevrolet Impala
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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