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really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
59,082 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 3 of 4)

« Read the previous 20 complaints

problem #35

May 032014


  • 56,000 miles


While on freeway check engine light and traction control came on and display read "reduced engine power" and "service stabilitrak" apparently a very common and dangerous issue that has not been recalled. I bought this car for my wife a couple months ago used and it has gone off multiple times. The engine shifts gears very rough and power is lost. Scheduled to go to dealership tomorrow but looks like it will cost me.

- Mineral, VA, USA

problem #34

May 042014

Impala 6-cyl

  • 79,000 miles
Cranked up the car to go home. Stability light and "engine" light was on. While on the interstate passing a truck the engine died. Display center indicated service stability track and reduced engine power. Coasted over to rt. Shoulder. Car would not restart for about 30 sec. Cranked it up and made it home. Trouble code is P2138 which seems to indicate the throttle position sensor D/E voltage. Will take to dealer in am.

- Mccomb, MS, USA

problem #33

Mar 062014

Impala 6-cyl

  • 18,076 miles
Backing out of my garage when check engine, stabilitrak problem, reduced engine power light came on message portion of dash.drove under reduced power, max 30 mph, to dealer, approximately 15 miles. Left car with dealer for approximately 2 days. Invoice from dealer said, diagnose code P2135, trace to throttle position sensor-bulletin replaced sensor assembly, GM 19300180 sensor kit, no charge to me under power train warranty. Today, April 30, 2014, same warning light came on, stabilitrak problem, reduced power, when backing out of same garage. Parked car back in garage and called dealer, have appointment tomorrow. Hope they can permanently fix problem as driving under reduced power is dangerous and can occur anywhere.

- Hamilton, MT, USA

problem #32

Apr 172014

Impala 6-cyl

  • 70,934 miles


I was driving on the highway when "reduced engine power, engine light, electronic stabili trek" warning lights came on. My RPM was racing upwards but my engine never ran hot. I got off the highway because of the warnings and lost of acceleration. I got home and called GM customer service who advised me of no recall for that problem and connected me to a local dealership repair shop and I made an appointment. Researching the car malfunction, I found numerous postings about the aforementioned problem. I took the car to dealership and mechanic called and said I needed a app sensor / pedal which is a factory only part. I ok'd the service work. The next day (April 18th,2014) the engine light came on briefly and the car was hesitating again, I called the dealership repair shop at 2:35 and spoke with mechanic that repaired my car and explained the problem. Mechanic asked me if the light was staying on I replied no and he stated the mechanics are leaving in hour. I asked the mechanic if it was safe to drive car until Monday, he replied yes.

- Hazelwood, MO, USA

problem #31

Apr 182014


  • 47,000 miles
Started car had car for 2yrs now no problem what so ever and the service traction and stability control and also reduced engine power came on as well as engine light it jerked went it shifted and didn't act like it had it power as always but I just drove it 35 mph to get it home this I would think is a great big safety issue shouldn't GM have a recall on this?

- Winchester, KY, USA

problem #30

Apr 142014

Impala 6-cyl

  • 40 miles
Driving on the highway with my daughter who is 9 months old exited to go to my mothers house and the car just died completely out of no where I was driving about 40 mph and barely got it off the road car wouldnt start back up and was flashing service stabilitrak/ service traction control/ and engine power is reduced I had to wait 5 minutes and then the car started thank god my wife wasnt driving who knows what would of happend but it is her car and we need to get this resolved asap before anyone gets hurt so im driving the Impala and hope to be safe and let my wife drive my car please help asap we have a 9 month old girl and twins on the way. And this is not the first time my wife has told me this has happened. Its very serious and could be deadly!!!

- Roanoke, TX, USA

problem #29

Apr 132014


  • miles


In may of 2013 I received a message on my dash board about stabili track, traction control and reduced engine speed. I took my car to the Chevy dealer so I could get a diagnostic, and they replaced a sensor behind my pedal. Just this weekend, Sunday April 13, 2014. The message displayed across the dashboard again. I'm going to call the Chevy dealer that fixed it the first time. Then I'm going to call GM. This is a very dangerous malfunction in these cars. From viewing and reading other stories, this is something GM should have known about and addressed.

- New Carrollton, MD, USA

problem #28

Jan 022013


  • 40,000 miles
I was driving down the highway on the homestretch of a roadtrip from pa to fl when the "service stabilitrak", followed by "engine power reduced" message started flashing. The two lights on the dashboard also went off. Since I was in the middle of the highway, I was unable to find a good place to address the issue, and I figured like most times the "check engine" light goes on, that it was something that I could wait to deal with when I got home. I continued driving for about 15 minutes and then the message changed and said "disabling throttle" or something to that effect, and I felt the engine losing power. I was in the middle lane, doing around 55 miles per hour with cars all around me. I immediately put on my four-way flashers and fortunately people in the right lane slowed down and let me coast to the shoulder but it could have been disastrous. I sat there for a few minutes trying to figure out what to do. Finally after a few minutes I decided to try starting the car again and it started, with just the check engine light on and I was able to continue on my way. Since then it has continued to occur intermittently. I took it to the dealer, but they told me it was a sensor in the gas pedal but that it was not under warranty.

- Allentown, PA, USA

problem #27

Apr 022014


  • 23,000 miles
While driving down side streets, my car locked up. Later my stability control light came on. Seems to grab and pull car in a jerking motion. Turned off control for the stability but afraid to drive on expressway.

- Allen Park, MI, USA

problem #26

Feb 122014


  • 49,200 miles
I was driving on I70 going 70 mph and out of nowhere my engine light comes on and 3 messages start appearing on the dash. 1) service stabiltrac, 2) service traction control, 3( engine power reducing. My car a 2011 Chevy Impala slows down to about 50. I get it going back to 60 but not very easily. I keep going and merge onto 465 (indianapolis Indiana area). I come into slower traffic where I need to stop. I apply my breaks and the pedal will not engage. Almost hit a car. Also when I slowed down the car started shaking bad. I continue a little farther in slow traffic and had to stop again, same thing with the breaks. So I pulled over and shut off my car on the side of I465. My daughter had looked up the error messages on the internet and there seem to be a lot on there with the same problem. They all said the same thing, after shutting the car off and restarting it it was fine. I made it home and everything seemed fine for a couple of weeks and it happened a few more times so far. Once at a stop sign and the same day as I was backing out of parking space at work. Once again that same week I was driving in town and took off from a red light and it happened again. From a complete stop the car started shaking and the error messages and engine light come on and it would not accelerate. I would have thought nothing about it except to get it fixed, but after reading so much on the internet about the same problem there has to be an issue and needs to be recalled. GM needs to own up to this problem before people get injured or worse die from this issue.

- Wabash, IN, USA

problem #25

Aug 302013

Impala 6-cyl

  • 50,000 miles


My daughter was driving 45 mph in the rain, the car lighted up and read the stabilitrak was having a problem and reduced slowed suddenly. She was driving at night. She pulled over, shut off the car, restarted it. This last week, this is now a multiple time per day occurrence. Last summer after the first incident, she took the car to the Chevy dealer in waterville, who hooked it up to the computer which did not show any code. He told her to continue driving it and it probably got wet. She took it again today to another garage in waterville, who hooked it up to the computer, and it did not say anything was wrong. She is experiencing loss of power to the car multiple times a day with multiple warnings about the stabilitrak. This is a dangerous situation.

- Unity, ME, USA

problem #24

Mar 042014


  • 64,436 miles
As I was driving down the road my car lost speed drop from 35 mph to 20 mph, the check engine light came on and the triangle with the car and skid marks then it kept flashing the service stabilitrak control, engine power reduced, and service traction control and it started to jerk and jump. I have been having major issues out of this car first it was the right hub (eating tires), then the left hub (eating more tires), then the transmission and gear shift completely gone (replaced everything) now this plus the front tires are still getting ate up. This is an ongoing problem with this Chevy Impala. I am so ready to get a Honda. As I see there are other owners that are having similar problems. Why isn't it a recall on these problems" nobody likes too loose their money for something that should have been taken care of by GM in the first place. What will GM do if all customers protest about these issues that should be recalled on whether its for the public, private, or government sector"

- Tallahassee, FL, USA

problem #23

Feb 282014

Impala 6-cyl

  • 25,000 miles
I started my car, and as I was pulling out of my driveway the following messages started coming up reduced engine power, service traction control, service stability track. I pulled back in, I turned the car off and turned it back on, the car seemed normal again, I then, started going to work, about a mile from work the same messages started coming up and I did the same steps turned the car off and the turned it on again. I contacted the dealer and he stated it could be the throttle body, and they have been having this problem with this model car. However I was stated that it is my responsibility to pay for this defect. Are they real, the have manufacturers defective part and I have to pay for this, that is unfair.

- Somerville, NJ, USA

problem #22

Feb 132014


  • 46,915 miles
The contact owns a 2011 Chevrolet Impala. The contact stated that the reduce engine power and check stable link warning lights illuminated. The vehicle was not taken to a dealer and the manufacturer was not made aware of the failure. The vehicle was not repaired. The approximate failure and current mileage was 46,915.

- Madison Heights , MI, USA

problem #21

Dec 132012

Impala 6-cyl

  • 43,000 miles
This has happened too many times, and I have taking it to the dealer 3 times. Stabilitrak reduce engine power comes on. One time throttle disarmed came on and my car cut off on the freeway and all I could do was coast off the ramp. This is happening so often and I am tired of it. Please help me.

- Farmington Hills, MI, USA

problem #20

Jan 232014

Impala 6-cyl

  • 46,157 miles
The check engine light came on (and had gone out) previously. Dash said "service stabilitrac, engine power reduced" and a mechanic said it was a "sensor in the gas pedal" and that if it kept happening we should replace it. I didn't fully realize that this meant that the throttle would disable itself while I was driving in morning rush hour traffic on the highway in the left hand lane going up a hill doing 60 mph. There was traffic behind me and in other lane so I had to pull into the center shoulder overtop of 5 inches of snow and ice. It was a struggle not to hit the guardrail. There was barely enough room. I just made it over the yellow line. It was 20 degrees and then had to wait an hour for a tow truck. The car did start and drive at the garage. This mechanic replaced the acceleration pedal assembly. The error was code P2122. He also stated that he could smell burning wires. I had smelled it but didn't realize what it was.

- Upper Darby, PA, USA

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

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