Car stalled on the interstate. Merged car to break down lane without being hit. Traction control light illuminated. Car would not restart for about 20 minutes. Car then restarted and warning light was off. Previous electrical issues with this vehicle including rear windows that will not roll down and defective air bag sensor.

- So. Strafford, VT, USA

I-40 East bound; 60 mph; coming down a 4 to 7% grade through the smokey mountains, North Carolina side; 1st error: "service traction control, reduced engine power, service engine. Approximately 5 minutes later 2nd error: "starting disable, service throttle" lost all power to vehicle. A very dangerous and frightening event having no control of your speed, steering, and braking trying to get off to the side of I-40 with the type of grade, tractor trailer trucks that can not slow down fast enough to let you over. We were very.... very fortunate with our outcome. Had to be towed to a local dealership. Ran diagnostic; error codes P2122, P2138. Dealership replaced the component: Electronic accelerator pedal

- Madison, TN, USA

The contact owns a 2009 Chevrolet Impala. The contact stated that all of the doors remained locked and the vehicle could not be locked or opened manually, only by using the electronic key remote. The contact took the vehicle to the dealer and was told that the electrical system for all four doors needed to be replaced. The VIN was not available. The vehicle was not repaired. The failure and the current mileage was 6,700.

- Oray Beach, FL, USA

Traveling at highway speed on 2 lane road, check engine and traction control lights illuminated then vehicle shut down. Lights and radio worked but vehicle would not turn over. After approximately 15 minutes vehicle cranked and started and was drivable. Took to Chevrolet dealer who made repairs by replacing 24 terminals. Verbally told me that there was corrosion on wires on this 2 year old vehicle with barely 60,000 miles. Had this happened on a multilane interstate highway shutting down like this could have been very dangerous.

- Jefferson City, MO, USA

I noticed some time back that when applying the brakes that I would get a rough vibration, such as with bad rotors. I took the car to the dealer that I purchased it at and they looked it over and stated that everything was fine. Since then everytime I hit the brakes the vibrations have only gotten worse, it's to the point now that it violently shakes the entire car and feels as if it's going to jerk the steering wheel right out of my hands. So I made another appointment for this issue and a new one; sometimes my dash lights will flicker and it will tell me it's 102 outside when it's only 70 and automatic tire pressure sensor is way, way off. I have also noticed recently that my front tires have become excessively worn on the outer edges to where there is only tread in the center and this shouldn't be a problem with only 21,500 miles on the vehicle; I should have been able to get about twice that out of the factory tires. At my last appointment they have still said there is no notable problems with my Impala.

- Williamstown, KY, USA

I have a 2009 Chevrolet Impala and my key is stuck in the ignition. I can start the car with no problem but I cannot disengage the key from the ignition. I have been online researching this problem and found that there are quite a few people who have had the same issue with the Impala.

- Glendale Heights, IL, USA

2009 Chevrolet Impala. Consumer states extreme vibration, severe steering difficulties and brake unresponsiveness the consumer stated the brakes were frozen in one position. The dealer machined the front rotors and sanded the pads. The engine shut down and the consumer had to drive in 3rd gear.

- Sun City West, AZ, USA

The contact owns a 2009 Chevrolet Impala. The contact stated that the electrical components in her vehicle went haywire. The lights would flash on and off, the air conditioner failed intermittently, the heating unit was inoperable, and the doors would lock and unlock by themselves. In addition, the vehicle lost all power and would not start. The dealer attempted to make several repairs to correct the failures, but was unsuccessful. It was later discovered that the aftermarket alarm system was wired incorrectly and caused the electrical failures. The dealer refused to make repairs and advised the contact to call General Motors to see if they would repair the vehicle. General Motors allowed the dealer to make the repairs, but the necessary parts were unavailable. The vehicle is currently at the dealer. There were 82 miles on the vehicle at the time of purchase. The failure and current mileages were less than 472.

- San Jose, CA, USA