really awful
Crashes / Fires:
7 / 0
Injuries / Deaths:
9 / 0
Average Mileage:
82,484 miles

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« Read the previous 20 complaints

problem #125

Dec 262015


  • 180,000 miles
I was driving on the highway when the service traction control came up on the dash along with the traction control light, with in seconds of this happening the car read reduced engine power. The car immediately lost power and slowed down to a maximum of 25 mph. This sudden loss of power caused the cars behind me to nearly miss rear-ending me. I had to drive in this crippled mode 10 miles to reach the closest exit. It is due to a faulty throttle position sensor. This seems to be a very common problem with these vehicles and can cause a sudden loss of power.

- Oostburg, WI, USA

problem #124

Dec 102012


  • 85,000 miles
The contact owns a 2009 cherolet Impala. While driving at various speeds, the vehicle would suddenly lose power and slow down before stalling and shutting off. When the failure occurred, the check engine light illuminated. The cause of the failure was not diagnosed or repaired. The failure mileage was 85,000.

- Little Rock, AR, USA

problem #123

Nov 292015

Impala 6-cyl

  • 123,000 miles
My name is [xxx] and I purchased a 2009 Chevy Impala, with 123,000 miles on it, in August 2015 from mac churchill auto mall in bedford, Texas. I have had no problems with this car since its purchase until November 29th. While en route to emory, Texas, my car started displaying "engine power is reduced" and "service traction control" messages. About 99% of the way there, I suddenly got a lurch and my car slowed down, with steering and braking not working. I was able to get my car off the highway safely but had to use my emergency brake to stop my vehicle and get it turned off. I tried repeatedly for several minutes to get it going again, but it would not start. After about five minutes, the car restarted normally and has performed flawlessly since. However, I am concerned. I've had a garage pull and diagnose the problem. The error codes that were pulled are P2122 and P2138, regarding the accelerator pedal position sensor. I've researched this and this appears to be a common problem from what I've been able to ascertain from my research. But I'm confused as to whether this is a recall item based upon this: www.naioa.com/V2/modules.php?name=forums&file=viewtopic&T=49934. I'm now trying to understand whether I can get this fixed because I'm not sure this is covered under my used car warranty and I do not feel compelled to pay for a repair that GM has been aware of but failed to notify my dealership or me as a owner, until I got a letter on 12/9/15 indicating that there may be a problem...well after I started having problems. I want GM to fix this at their expense. It is a safety hazard here in the dfw area because this could reoccur while I'm in heavy traffic and have no way to stop before someone hits me or I hit someone. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Euless, TX, USA

problem #122

Mar 172012


  • 28,000 miles
My vehicle's ignition switch shut off, which caused me to lose steering. When I crashed, the airbag failed to deploy. I was driving in a large parking lot and went over a speed bump. I was knocked out but the police report indicated there were no signs of braking or steering. I took my Impala to the GM dealership over 12 times.

- Pittsburgh, PA, USA

problem #121

Oct 142015


  • 75,000 miles
For a few years I've had problems with the accelerator pedal. The first time was roughly two years ago when the car completely locked up and shut down on the highway just before rush hour. I received an error code to check traction control and that the engine power is being reduced. The car then looses speed dropping drastically. The first time I was in the fast lane on the highway and the vehicles computer system shut down. The steering wheel locked making it very difficult to veer off to the side of the high way. Luckily no other vehicles were directly behind me, and I was able to get the car to the side of the highway accident free. I've never been so afraid and terrified in my life. I fear this issue will cause fatalities that can be prevented. I had the car serviced at a Chevrolet dealership in ann arbor mi which was an expensive fix! since I've had the accelerator pedal replaced, the vehicle has shut off two other times followed by the same warning message to service traction control and engine power being reduced. I've written in to GM and they continue to request that I pay a diagnostic fee at a dealership for them to address the cause. I cant continue to pay $200-$300 for this fix when it is a manufacturers issue. This recall has been done on other Chevrolet models and I am praying for a recall on the 2009 Impala. This is a major safety issue to my family and the drivers who are around me. The issue is still present and is a major concern. The vehicle speed cant exceed 40mph at times, or will instantly drop at unexpected moments. Please investigate this issue.

- Ypsilanti, MI, USA

problem #120

Sep 242015


  • 93,683 miles
The contact owns a 2009 Chevrolet Impala. While driving approximately 55 mph, the traction control warning light illuminated along with the warning message "engine shutting off". the engine was then shut off and could not be restarted. Approximately five minutes later, the engine was restarted and the vehicle operated as normal. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 93,683.

- Dundee, NY, USA

problem #119

Sep 082015


  • 156,550 miles
Was driving along at 55mph and the service traction system light came on followed by the reduced engine power light. Then the car just completly died. I was able to get to right shoulder and park it. I have done some research and seems that there have been several other folks with the same issue. I can't believe that this car would just shut down and have no control. I had the entire family in the car and was thankful that this didn't cause an accident. I am looking for answers and plan on taking it to the Chevy dealership I purchased the car from today or tomorrow.

- Howard, OH, USA

problem #118

May 102015

Impala 6-cyl

  • 58,970 miles
My car shut down on me on May 15 2015.service traction control and reduced engine power message appeared. I managed to drive the car home at slow speed.this is a safety issue. I have read reports that similar problems have appeared on other 2009 Impala. Some reports said the car shut down completely in fast moving traffic.I had my own mechanic look at the car and the part that needed to be replaced was thea.I.R. system check valve.I later received a notice from Chevrolet about another problem that could cause the car to shut down unexpectedly. (app) sensor accelerator pedal position sensor.I believe a recall should be issued for these problems because of the potential for accidents on the highway.also, Chevrolet did not cover the cost of the repairs to the a.I.R. pump. Thank you

- Cheswick, PA, USA

problem #117

Jun 162014


  • 74,586 miles
I was driving on the highway during rush hour traffic going approximately 65 per hour and the service traction control came on and then said that engine power was reduced. It also had the engine light come on and stayed on all the way home. I then got home safely that time and shut off the car about 20 minutes later went out and all lights had gone off and was back to normal. This has happened at least a dozen times since then. Then on 6/29/15 this happened again on the highway during rush hour traffic. However this time the car said throttle disabled and the car shut off completely in the middle of the highway and I had to try and get to the side of the road without incident. After about 10 or 15 minutes the car then started back up and the lights went out and I was able to drive again. Then later in the day I returned home and tried to leave in my car and it would not start and had no power what so ever. The key also would not come out of the ignition and I just had that recall dealt with on the key. I could have been seriously injured in this last incident. This needs to be recalled and GM needs to pay for what I am out of pocket because I now had to get a rental car to work. I have read pages upon pages of complaints just like mine, which is ridiculous that this issue has not been fixed. Does it take someone getting injured or killed for GM to do something?

- Scottsdale, AZ, USA

problem #116

Sep 152011


  • 49,000 miles
Traction control light, and reduced engine power light came on. Lost power to the engine and had to stop. Turned the ignition off. Waited 10 minutes and started the car. Ran fine until I got home. This happened a few times before I took the car in. Found out it was an accelerator pedal position (app) sensor.

- Northfield, MN, USA

problem #115

Apr 022015


  • 62,000 miles
Driving on interstate vehicle suddenly lost all power and would not accelerate & quickly decelerated with any prior warning. 18 wheeler almost rear ended me. Instrument panel displayed "engine power reduced", "service traction control, " "service stabilitrak", and "check engine light." Finally exited interstate safely and shut down engine thinking it was going to blow up and after 2-3 tries to restart messages disappeared and vehicle seemed to be ok. Took vehicle to mechanic & found codes evidencing the loss of communication between the tac and or the app units causing vehicle to go into limp mode but could not get the condition to reoccur. Mechanic had to remove codes to permit to duplicate problem, could not duplicate and told me to wait until reoccurred. While looking for repair shop was scared it would happen again received letter from GM stating if the above condition had occurred they would fix. Called GM dealer mentioned letter they refused to repair unless the messages were present on panel, refused to look at the vehicle. Called GM customer service referencing letter, explained GM dealer refused to repair. Was told by angela issue was safety related problem but GM would not admit to safety issue. GM agreed to pay for one hour of diagnostic time to determine if vehicle qualified for repair, dealer was unable to duplicate problem, refused to repair. Called GM and was told no repair would be made even though the problem had occurred as stated in the letter and to wait until situation occured again then not to start engine and tow to GM dealer. Was told GM would not pay for tow or inconvenience and if they could see codes they might repair problem. This is definitely a safety issue since when this occurs the vehicle loses all power and basically shuts down and will not accelerate beyond 5 mph if at all. Leo nelson 937-554-9778 noslenlsn@gmail.com

- Riverside, OH, USA

problem #114

Oct 012013


  • miles
The contact owns a 2009 Chevrolet Impala. While driving at 40 mph, traction control, engine power reduced was displayed across the message board. The contact independently replaced the accelerator pedal; however, the failure recurred. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

- Reidsville , GA, USA

problem #113

May 232015


  • 76,000 miles
The contact owns a 2009 Chevrolet Impala. While driving 65 mph, the engine warning light illuminated and recurred multiple times before the vehicle stalled. The vehicle was taken to the dealer where the technician diagnosed that the engine failed. The manufacturer was notified of the failure. The vehicle was repaired. The approximate failure mileage was 76,000.

- Jefferson, MO, USA

problem #112

May 012015


  • 112,000 miles
I was driving on the highway and all of the sudden check engine light and traction control light come on. Warnings service traction control and reduced engine power are displayed and all but shuts my car off in the middle of the highway causing cars to slam on their brakes and swerve barely missing me. I get over to the side of the road and turn the car off. Then turn the car back on same messages and won't go no where. Do the same thing again only waiting longer and no messages but check engine light still on. I drive home. Next day no warnings or lights. Couple weeks go by does the whole warnings and lights and slows car down again but doesn't completely shut it down. I was in regular street traffic this time about 35mph. And now it's more frequent sometimes a couple times a day to once every day or two. This needs to be looked at. I'm reading about this problem on a lot of Impala causing major problems and wrecks.

- Tulsa, OK, USA

problem #111

Jun 152010


  • 65,000 miles
The contact owns a 2009 Chevrolet Impala. While driving approximately 55 mph, the vehicle stalled and the lower engine power warning light illuminated. The vehicle was restarted. The vehicle was taken to an independent mechanic where it was diagnosed that an unknown part related to the throttle body needed to be replaced. The vehicle was repaired. In addition, while driving at various speeds, the air bag warning light illuminated. The vehicle was taken to a dealer where the technician stated that an unknown part needed to be tightened. The vehicle was repaired; however, the failure recurred. The manufacturer was not notified of the failure. The failure mileage was 65,000.

- Daleville, VA, USA

problem #110

Feb 042014


  • 78,000 miles
While driving approximately 65 mph, the traction control and engine power reduced warning indicators illuminated. After driving a few miles with these indicators on the disabling throttle warning came on and the vehicle stalled. I managed to coast over to the emergency lane and was able to restart the car after approximately 10 minutes. This had occurred on numerous occasions and have not been able to have it successfully repaired.

- Memphis, TN, USA

problem #109

May 182015


  • 120,000 miles
The contact owns a 2009 Chevrolet Impala. The contact stated that the check engine and the traction control warning lights illuminated. In addition, a chime sounded. The vehicle was taken to the dealer where unknown repairs were performed. The vehicle was not repaired. The manufacturer was notified of the failures. The failure mileage was 120,000.

- Milford, MI, USA

problem #108

May 182013


  • 115,000 miles
The contact owns a 2009 Chevrolet Impala. While driving at approximately 40 mph, the fuel gauge went down to zero. Also, the accelerator pedal was depressed but the vehicle did not accelerate. The service engine soon warning indicator illuminated. The failure recurred three times. The vehicle was not taken to a dealer or diagnosed. The manufacturer was made aware of the failure. The VIN was included in NHTSA campaign number: 14V355000 (electrical system). The failure mileage was approximately 115,000.

- Henrico, VA, USA

problem #107

Nov 012014


  • 185,000 miles
We received a letter saying this year and model have a poor solder connection that causes reduction in engine power and traction control failure. Our car has this problem. However, Chevrolet will only pay for the fix if it is under warranty and has less than 120,000 miles. We believe that most six year old cars have more than 120,000 miles and Chevrolet is just covering themselves from lawsuits with this letter. If they soldered something improperly they should fix it regardless of the milege on a vehicle.

- Millville, NJ, USA

problem #106

Apr 142015


  • 122,000 miles
While driving on the highway at 55 mph the car lost power and displayed "reduced engine power." I lost complete power and luckily was able to coast to the shoulder. It was very scary and very dangerous.

- Rochester, NY, USA

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