Three problems related to service engine light on have been reported for the 2009 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Chevrolet Impala based on all problems reported for the 2009 Impala.
I have been having the service engine light come intermittently along with the service traction control light. I have had a technician look at this for me and advised that the throttle control sensor (accelerator pedal) is going in and out. The accelerator pedal is connected to a sensor that drives the throttle on the engine. When this happens intermittently the vehicle looses engine power and traction control.
We own the car listed above and have for over two years. We bought it at a dealership in east tennessee. The car was previously used as a rent a car for enterprise. Not even a year after we bought the vehicle we had to replace the transmission. The biggest problem is the fact I have drove this car and all issues stated for a recall we have had a problem with. The most recent is the vehicle shutting off while driving it on highways. It's is saying service engine light mad than will say service traction control,than it will shutoff I been going 70 down an interstate and it shutoff mad about kill us. We had the vehicle checked and the accelerator pedal sensor or something like that is the problem by what technician say. I am just now starting to research the issues we have and found numerous recalls on this vehicle in which we have the problems listed above and more. Mainly the airbag steering control arm and vehicle just shutting off. I guess the best way to sum it up is they sold us a lemon perhaps but after looking at the recall list our vehicle meets the requirements for sure. Too many problems for a new vehicle. Just looking to take care of the problem before the car injures us or someone else on the highways. Hope this doesn't take long to get resolved because deaths could occur. Thanks for your time hope to speak with someone soon before it's too late. I mean I thought something major was wrong but the automd website really assured what we been thinking. Thanks for your time.
I was driving home on the freeway at about 70 mph and the service engine light went on with it saying "reduced engine power" on display. About 10 seconds later I could not accelerate, the car began to start slowing down and I lost ability to maneuver the steering easily as the steering wheel locked up. I was able to pull off on the side of the freeway and I had to turn the car off and wait about 10 minutes for the problem to clear up.