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really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
59,928 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2011 Chevrolet Impala brakes problems

brakes problem

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2011 Chevrolet Impala Owner Comments (Page 4 of 4)

« Read the previous 20 complaints

problem #19

Jan 112014


  • 67,460 miles


I was driving down the interstate with the cruise control on when suddenly my car jerked and a message showing "engine power reduced, service stabilitrak" showed up. I noticed the rpms jerking up and down with a pretty dramatic range. When I slowed down my car started shaking. The worst part is that when I shut my car off the problem stops. This has happened 4 other times. Once while idling. Once while slowing down from 55 to 35 and once while driving about 35 mph. There seems to be no pattern and it is intermittent.

- Lafayette, IN, USA

problem #18

Dec 232013


  • 43,400 miles
I started my car after a cold night and immediately got a "service stabilitrak", "engine power reduced", and "service trance ion control" messages. The car had an extremely rough idle and then would not accelerate to more than 25 mph. I returned home and made an appointment at the dealership. Later, I was ready to take the car into the dealer and it started fine with no error messages or check engine light. I called the dealer and they said it must have been a computer error that fixed itself. Well, it's a week later now and I am having the issues again except restarting the engine does not fix it anymore. This is a serious issue and needs to be resolved by GM and not cost the many people experiencing this issue hundreds of dollars to fix!

- Essex, VT, USA

problem #17

Dec 212013


  • 50,000 miles
While driving down the road service traction control reduce engine power and stability control light came on. Car engine lost power and I thought it was going to blow up it made the whole car shake. You shut it off for a few and restart it and its like nothing ever happened. Not to happy about this I have not had the car a year. Guess a person needs to die from this matter before there is a recall on this what a joke. And the worst is Chevy will not cover any of this even if the car is under a warranty.

- Greendale, WI, USA

problem #16

Aug 232013

Impala 6-cyl

  • 52,000 miles


While driving at 60 mph, messages were flashing: Service stabilitrac soon, reduced power to engine, check traction control. Car decelerated to 30 mph on the highway, hard to steer. I pulled off the road, turned it off and waited. Several minutes later it restarted and I was able to drive it home. The engine light and the traction control light still come on. It shifts hard (and it's an automatic transmission). In addition, cruise control will not work during this condition.

- Circleville, OH, USA

problem #15

Nov 242013

Impala 6-cyl

  • 43,110 miles
This is the second time this has happened. Less than a year ago, we received a service stabilitrac/service traction control/engine at reduced power message and speed dropped from 40 mph to 5 mph. We brought it to the Chevrolet dealer and a traction position control sensor was replaced. Today, on 11/24/13, we were driving 15 mph in a parking lot and received the same message resulting in the same problem. This is a safety issue due to the fact that the vehicle essentially stalls out with little to no power and nearly caused a collision at an intersection. When will NHTSA force GM to recall and fix this issue? this is extremely dangerous.

- Durham, NH, USA

problem #14

Jan 062012

Impala 6-cyl

  • 27,000 miles
I purchased a 2011 Chevrolet Impala a year and half ago from victory Chevrolet in mount holly< N.C. after the first week of owning the car which had only 27000 miles on it the stabiltrak light came on, since then it has happened four times including today, two of these times I came close to having a wreck. I found on the web that this is happening to the Impala. I wrote GM to ask if someone would have to be killed to recall these and be fixed. If you look at this you will see they did recall the police cars but not the personal vehicles. I don't know if you can help but I will contact all the news media till someone will listen. Again I have to take my car in for repairs for the same reason. Thank you! if Canada is suing GM for this reason then why is something don't done here?

- Stanley, NC, USA

problem #13

Sep 302013

Impala 6-cyl

  • 55,419 miles


I was merging on to the highway at approximately 35-40 mph when the bells and alarms went off and the engine reduced power. Error on hud said service stabilitrak reduced engine power service traction control.

- Shelby, NC, USA

problem #12

Sep 122013

Impala 6-cyl

  • miles
On my way to work: On highway all lights came on service traction control, service stabilitrak and engine power is reduced, and my check engine light came on as well.

- Atlanta, GA, USA

problem #11

Sep 012013


  • 50,459 miles
My wife and I were returning home on I-81 traveling northbound. A warning bell sounded and she noticed the tcs(traction control system) warning light came on and a warning notice to have the stabiltrac serviced, engine power reduced warning as well. We drove the rest of the way home at a reduced speed and parked it. My wife went out today and started the car and the only indication we had was the tcs light was on. No other warnings appeared. This is something GM really needs to address since I have read about many such complaints. A recall is needed GM. This is a manufacturing problem and you should cover the costs not us consumers!!

- Chambersburg, PA, USA

problem #10

Aug 222013


  • 50,000 miles
While leaving from work I made a left turn onto a busy highway and my service traction control light, reduce engine power, and check engine light came on. Pulled over and car was wanting to turn off. Turned off car and service traction control light goes off but check engine stays on. Came home googled what could be the cause and see that many Impala owners are having the same trouble...I see a lawsuit happening if GM does not recall this!

- Taft, TX, USA

problem #9

Jun 012013

Impala 6-cyl

  • 65,011 miles


For several weeks, the indicator on my vehicle will alert me "service traction control; reducing engine power". at first I thought this was just a glitch, until it kept happening over and over and over again. There are days when the indicator will go off and remain off for a week or two, but then it will all of a sudden come back on and remain on for a week or so. I get my vehicle serviced regularly. I have contacted GM dealership after dealership, and they have all told me there is nothing they can do. Finally, I asked for the corporate office number (800-462-8782). I called GM's corporate office (reference#: [xxx]) and was told that my powertrain warranty is still good but my bumpertobumper warranty has expired due to the mileage. I advised the representative ([xxx]) that I had googled this information to find out what was going on and this appears to be a known issue with Chevy implala's, and I asked why hasn't GM put out a recall on this issue. She then tells me that I need to pay and get a diagnostic check to determine the actual issue. My question to her is "why should I or any customer have to pay for something that is a reported known issue"" there representative continued to apologize and tell me there was nothing that GM could do because this was not a known issue. I referenced there representative to research for herself ("hl=en&source=hp&Q=what+does+service+traction++control+mean+on+my+Chevy+Impala&gbv=2&oq=what+does+service+traction++control+mean+on+my+Chevy+Impala&gs_L=heirloom-hp.3...734.19328.0.19516. and she continued to tell me there was nothing they could do. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Capitol Heights , MD, USA

problem #8

Jun 102012


  • 45,758 miles
This has happened multiple times to my 2011 Impala. I will be driving normally, anywhere from 45 to up to 65 mph, and I will get a warning saying "service stabiltrack, service traction control, engine power reduced". usually I can shut the car off and wait 5 minutes, and the messages will clear, but the check engine light will remain illuminated for the next couple of days, eventually clearing. There needs to be a recall for whatever is causing this, because there are a lot of folks with Impala having this same exact problem. We as the consumer, should not have to pay money out of our pocket, for a problem that Chevrolet caused during the manufacture of this car.

- Baldwyn, MS, USA

problem #7

Mar 202013

Impala 6-cyl

  • 48,000 miles
The service stabilitrak light comes on and engine power is reduced. It happened this morning while taking my kids to school...very scary thing when kids are in the car because it just starts losing power & you really cannot drive it like this..

- Sullivan, IN, USA

problem #6

Mar 272013

Impala 6-cyl

  • 50,350 miles
The check stabililink / reduced engine power light came on at start. After shutting the vehicle down and restarting the light went off. I was traveling on the highway when the reduced engine power light came on. I pulled over, restarted the car and it was fine. After stopping and restarting several more times, the engine light remains on and the check. The stabilizing warning continues. The car is completely unreliable at this time. Since this occurred over easter, there are no mechanics available, leaving me with no car and cancelled appointments and lost wages to start the week.

- Wooster, OH, USA

problem #5

Mar 302013


  • 43,000 miles
Driving 30 mph in a small town. A "binging" noise sounds 3 times and the traction control warning light as well as the check engine light came on. Vehicle messaging system stated that to "service stabilitrak, " "service traction control, " and "engine power reduced. The acceleration was noticeably reduced as well as a significant difference in maintaining speed. Merging onto a highway the cruise control would not kick in when setting speed which made it difficult to manage a 65 mph speed limit.

- Rochester, MN, USA

problem #4

May 212012

Impala 6-cyl

  • 39,567 miles
My wife was driving on the highway and out of the blue the stability control and reduce engine power light came on the message display. There were no weather conditions at the time. This has happened 6 times total. One time it happened as she was warming up the car. All of a sudden it started shaking and she felt as if it was about to take off into space. She turned it off three times - even tried to drive it and move to another parking place and turned if off again before it finally stopped shaking.

- Mosinee, WI, USA

problem #3

Dec 262012

Impala 6-cyl

  • 67,000 miles
My 2011 Impala is reading "service throttle. Reduce engine power" and then proceeds to shut down. Even after replacing accelerator pedal position sensor, vehicle is still reading same errors. This is very dangerous because there is no limitations to when the vehicle shuts off. After extensive research, a lot of people are having the exact same issue and Chevrolet hasn't attempted to do anything about it. Please help!

- Chicago, IL, USA

problem #2

Nov 272012

Impala 6-cyl

  • 47,000 miles
While driving on city beltway, I was changing lanes at 50 -55mph when my car experience shudder and the messages that came on screen was engine reducing power, check stability control, check traction control lights flash and what appeared to be rough idling. The next incident happen off and on for several days. The last known was 1/3/2013 630am and 115pm I would have to sshut down and restart until the message disappears. The thing that really shook me up was when I was merging onto the highway in the morning around 6:45am there was a semi and other vehicles behind me so I attempted to merge at about 30-50 when the messages appeared and the semi was practically on my tail. My heart jumped out my chest but I remained calmed and luckily there was a median strip ahead. I ask myself situation could have gone wrong and caused a major accident or gotten killed from being rammed from behind all because I could'nt accelerate.I have a small video to back this up. I took it to the dealer and they said that there was no recall notice and that they would need to get the code and charge me $129 for diagnostic. This is clearly a safety issue and who knows how many was killed behind this.

- Baltimore, MD, USA

problem #1

May 112012

Impala 6-cyl

  • 33,000 miles
On 5/11/12, the "service stabilitrak" light came on; then a notice that the engine power was reduced came on. I called the dealer for service and he said I could bring it in on 5/14. I asked if it was dangerous to drive in the meantime and he said no. I was driving on 5/12 and was stopped in traffic waiting to turn left. I went to turn left and experienced a greatly reduced response from the gas pedal which was frightening. The dealer just called me on 5/14 and said the problem was in the accelerator pedal and he is replacing it. I found a number of complaints online of this same issue going back to the 2007 model. I think this should prompt a safety recall, since a non-responsive accelerator pedal is a safety issue.

- Idaho Falls, ID, USA

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