10.0

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 #145

Feb 092011

Impala

  • 88,223 miles
Engine light comes on and reduce power warning comes on then engine shuts off.

- Dickinson, TX, USA

problem #144

May 152016

Impala

  • 125,000 miles
The contact owns a 2009 Chevrolet Impala. The contact stated that while driving at various speeds, the "service traction control module: Engine power reduced by 50%" warning message displayed. The contact stated that the vehicle stalled without warning on several occasions. Montgomery Chevrolet of louisville, Kentucky was made aware of the failure and stated that there was no recall and that there would be no service provided. The manufacturer was made aware of the failure. The failure mileage was approximately 125,000.

- Shepherdsville, KY, USA

problem #143

Jun 142013

Impala

  • 126,000 miles
The contact owns a 2009 Chevrolet Impala. While driving on the highway, the vehicle experienced reduced engine power and stalled. The check engine warning indicator illuminated. The contact also mentioned that the air bag warning indicator illuminated. The vehicle was towed to an unknown dealer where it was diagnosed that the ignition switch was defective and needed to be replaced. The vehicle was repaired. The contact experienced a similar failure three years ago. The vehicle was taken to mcdermott Chevrolet where it was diagnosed that the failure was attributed to NHTSA campaign number: 14V355000 (electrical system). The vehicle was repaired, but the failure recurred. The contact also took the vehicle to the same dealer because the air bag warning indicator illuminated. The contact believed that the indicator was illuminated due to NHTSA campaign number: 16V507000 (air bags, electrical system). The technician informed the contact that the failure was not due to the recall and refused to pay for the repairs. The manufacturer was not notified of the failure. The failure mileage was approximately 126,000.

- Hamden, CT, USA

problem #142

Nov 292016

Impala

  • 223,300 miles
Vehicle serviced by Firestone complete auto care, November, December 2016 vehicle was in motion, on a city street vehicle exhibited reduced engine power, ran rough, triggered engine error alarm. Diagnostic by Firestone revealed a pedal position sensor error, error code P2122, resulted in replacement of accelerator pedal assembly, removal & replacement of throttle position sensor. Vehicle was in motion, on a city street upon return of the vehicle to the owner, replacement of accelerator pedal throttle position sensor resulted in intermittent, dangerously uncontrolled vehicle acceleration, vehicle was towed back to Firestone repair shop. Uncontrolled vehicle acceleration was resolved by replacement of throttle body assembly. The conditions initially described, reduced engine power, rough idle was predicted in a letter, dated November 2015 as received by owner from General Motors Chevrolet division regarding a do not return to dealer order, all in bold letters and under lined. Further instruction clearly communicated that the issue would not be addressed unless the issue actually occurred and had to be within strict time cut off related to when vehicle was placed in to service or under 120,000 miles. Any possible repairs once approved for the conditions described were covered under a special coverage program. The issue created a clear and obvious dangerous safety issue and should have been managed as a safety recall not a do not return to deal order and managed as a special coverage program. Owners of vehicles with the issue or the potential for this issue to occur, victims resulting from this issue should be compensated for all repair fees and liability claims resulting from this issue as reported here today.

- Dighton, MA, USA

problem #141

Jan 082017

Impala 4WD 6-cyl

  • 121,225 miles
For the last two days, I have driven my vehicle. Every time I would drive over 40 mph, the engine would lock up. The vehicle would jerk back and forth. The car would do this every time I would try and drive over 40 mph, no matter the roadway or stop at an intersection. Whenever this happened, the check engine light would stay on. A month before this problem started, my father had been driving the car and had an auto accident.

- Columbus, OH, USA

problem #140

Jan 082017

Impala 6-cyl

  • 121 miles
For the last two days, I have driven my vehicle. Every time I would drive over 40 mph, the engine would lock up. The vehicle would jerk and shake back and forth. The car would do this every time I went over 40 mph, no matter if I was driving on a highway or road or coming to a stop at a red traffic light. Whenever this happened, the check engine light and the traction control light would stay on. This problem started weeks after I had an auto accident.

- Columbus, OH, USA

problem #139

Oct 302016

Impala

  • 90,100 miles
My car's engine power was severely reduced suddenly when I was driving on interstate highway 275 North in tampa, fl. A message showed on the dash: " reduced engine power, service traction control" and the check engine light was on. This happened today around 7 pm on Oct 30, 2016. My car is a Chevy Impala 2009. I searched online and found thousands of messages about the same error message of reduced engine power on many models of GM cars including Impala, Malibu, trailblazer, Silverado. This worries me very much as so many same error messages and engine problems happened on so many GM cars. My research shows that GM has done nothing to resolve this problem yet. So this irresponsibility of GM on this specific issue put the lives of hundreds of thousands of drivers in danger. I hope NHTSA looks into this problem and pressure GM to issue a recall if possible to take care of this serious problem. Thank you!

- Tampa, FL, USA

problem #138

May 122016

Impala

  • 112,000 miles
While driving the check engine light and traction control light comes on and reduce engine power reads across the screen. Car slows to 45 miles an hour and turns off. I have had the throttle replaced and the throttle body replaced. The problem still on going....?

- Conyers, GA, USA

problem #137

Aug 142016

Impala

  • 72,000 miles
I was driving and suddenly a symbol for traction stability came on and then a warning saying low engine power.

- Marion, IA, USA

problem #136

Jun 102015

Impala

  • miles
Takata recall. The contact owns a 2009 Chevrolet Impala. The contact had not experienced a failure with the vehicle until it was repaired per NHTSA campaign number: 14V355000 (electrical system). Shortly after the dealer's repair, the check engine warning light randomly illuminated and the vent controls failed to properly work. In addition, the key fob failed to lock and unlock at different points in time. The contact notified the dealer and they were unable to provide a solution for the various electrical failures. In addition, the brakes were slow to respond and the dealer replaced the rotors, which did not prevent the failure. The contact was informed that the brake actuator needed to be replaced. The repairs for the brake system did not prevent the failure. The contact later received notification of NHTSA campaign number: 16V507000 (air bags, electrical system). The parts were not available. The manufacturer was notified of the failures. The failure mileage was unknown. Parts distribution disconnect.

- Mountainview, AR, USA

problem #135

Dec 122014

Impala 6-cyl

  • Automatic transmission
  • 5,000 miles
The contact owns a 2009 Chevrolet Impala. While driving various speeds, the vehicle stalled and the traction control warning light illuminated on the instrument panel. The vehicle was taken to the dealer for diagnostic testing, but the failure could not be duplicated. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 5,000. Updated 10/13/16

- Bristol, FL, USA

problem #134

May 142016

Impala

  • 58,000 miles
Reduced engine power appeared followed by check traction control. Then symbol for check traction control and engine completely in passing lane on interstate 80. Check engine symbol also lit, car completely died and would not restart. Approx 15 min later, it did start with check engine symbol lighted.

- Panora, IA, USA

problem #133

Jun 042016

Impala

  • 134,000 miles
Car is currently at 134K miles and just gave me a "reduced power engine", "check traction control", and a check engine light. I googled around and came across a lot of Chevy Impala around the same year (07-10) are having the same problem. It seems to be something with the "accelerator pedal positioner pedal sensor. Also reading into it, it claims that this problem can cause the car to suddenly stop from 60mph all the way down to 20 or zero. This is extremely dangerous and needs to be looked into before someone is hurt or killed.

- Avondale, AZ, USA

problem #132

May 012016

Impala

  • 122,800 miles
I was on the interstate, going the speed limit. I had the cruise control on when the car alerted me that the engine power reduced and service traction control. I continued to drive as these messages have appeared on my car before. I traveled another 40 miles along the interstate and was about a mile from my exit. I was passing an over-sized tractor trailer going up hill when the car displayed starting disabled throttle service and the car shut off. I was in the left lane and had to initiate my emergency lights and wait for the tractor trailer to pass me so I could move the car over to the right shoulder. As the car was completely shutoff and was just coasting, I had to fight the steering wheel to control the car. I feel like had my situation was just a little different, the car could have came to a complete stop in the middle of the interstate with cars traveling 70+ mph and possibly caused a crash. I've already replaced the throttle position sensor and that remedied the situation for a couple months. This a highly dangerous occurrence that I know is common with the Impala's as I've heard it happening to several other people owning Impala's.

- Murfreesboro, TN, USA

problem #131

May 012016

Impala

  • miles
This problem started 2 years ago. My car would give me a warning "service traction control. Engine power reduced." Then the car would shut off. I took the car to a local mechanic where the fixed a sensor. That was around a year ago. I travel a lot for my job and today I arrived in portland Oregon had pulled off the interstate to get fuel, and once I pulled out to the extremely busy intersection my car did this again! I was stopped at a stop light and once it turned green boom car died due to traction control. So now I'm in the middle of a very busy road with traffic going around 45 mph almost rear ending me. I took the key out of the ignition for about 45 seconds and tred starting it which worked. Foolishly I thought I could at least make it to this parking lot right across the street when I went about 500 feet it did it again, in an even worse spot. I took the key out of the ignition again for 45 seconds started the car and got into the parking lot which was now 50 feet from me. I searched online for what could be causing this and that's where I found at least 50 other people having the same issue and trying to get GM to help. I will not be able to do my job if I can not get from place to place safely. This is a major safety issue that has the potential to kill people.

- Creston, IA, USA

problem #130

Mar 222009

Impala

  • 63,000 miles
The contact owns a 2009 Chevrolet Impala. The contact stated that oil was leaking from the engine compartment. The vehicle was taken to an independent mechanic where it was confirmed that engine oil was leaking onto the exhaust manifold. The remedy was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact referenced NHTSA campaign number: 15V701000 (engine and engine cooling); however, the VIN was not included. The failure mileage was approximately 63,000.

- Manchester, MO, USA

problem #129

Mar 182016

Impala

  • 150,000 miles
Receiving a message for service traction control and reduced engine power. The check engine light comes on. This has been happening on and off for weeks. The car slows down. Now there is a ticking noise coming from the car.

- Gary, IN, USA

problem #128

Feb 172016

Impala

  • 130,000 miles
I was waiting at a stop light. When the signal turned green, I turned and as I was turning my car began to decelerate and shut down. I had to steer hard to pull over to get out of traffic. I pulled alongside the road. Thinking maybe it was low on fuel, I had my brother get gas and we put gas in it. However, it would not start. Sat for maybe 20 minutes to see if it. Nothing happened. My sister came to give me a jump thinking that I needed one. However, no luck at all. Had to pull the car home. The mechanic thought that it was my starter, put the starter on and still nothing. The end result, my engine has seized on me!!

- Apopka, FL, USA

problem #127

Feb 112016

Impala

  • 116,000 miles
While traveling home at about 55 mph car in front of me slammed on their brakes causing me to do the same - then traction control light came on - check engine light came on and reduced engine power came on in the display window - felt like all four wheel jumping up and down when trying to gain any speed weird sound coming from engine (normally quiet).

- Harrisburg, IL, USA

problem #126

Jan 032016

Impala

  • 80,000 miles
I bought my 2009 Chevrolet Impala used in April 2015, and since then I have had the warning service traction control, followed by engine power reduced pop up about a dozen times, with varying lengths between incidents, but not until yesterday did the car respond in any way. Yesterday I was accelerating up an interstate entrance ramp when the service traction control message popped up, then engine power reduced, and I paid little attention until quickly after the second message I realized I had no power, I had the accelerator to the floor and the car wasn't responding, the engine had shut down. So I turned on my hazard flashers and tried to pull over to the berm, but had to fight the dead steering wheel to do so, the power steering had stopped working when the engine shut down. The car wouldn't immediately restart once I had come to a stop, but after letting it sit for a few minutes, it started and I had no further issues getting home. I have read about this problem with this model vehicle here on this website, but this is the first time the engine has shut down on me after the two warning messages, and I was very lucky that there was no traffic in the lane I was trying to merge into when it did happen.

- Cleveland, OH, USA

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