No accidents yet, but very easily could've been. Car stalls with no warning and sometimes doesn't want to start. Car has stalled 3 times - it happened twice shortly after leaving a stoplight, so 20-35mph and the third time was going 55mph down the highway. The two times it stalled at 20-35mph it started up right away. After it stalled at 55mph, it took 3-5 tries to get it started again. There have also been two other separate times that the car did not want to start. This happened after driving the car a short distance, about 5 miles, turning it off for 10-20 minutes and then it took 3-5 tries to get it started again. The security light did not come on when these incidents happened. Car does have 126,000 miles on it. Car is currently at the dealership and there is no code indicating what this stalling/no start problem is. This is the third day the car has been at the dealership and they still do not know what it is. The car has died once while at the dealership, but it started up right away so they couldn't do the test they wanted to do. This is ridiculous to have such a huge safety-related issue with no known cause/code and it appears from other complaints and automotive "chat rooms" I am not the only one with this issue and no resolution.

- Raymore, MO, USA

While cruising at 45 mph, the vehicle stalls and will not restart until after three to four attempts. Dealer is unable to diagnose the problem (vehicle is a police package, the township also owns a second 2001 Impala with the identical problems).

- Newtown, PA, USA

While driving at 55mph vehicle will automatically shutoff. Also, cruise control and other electrical parts will shutoff. Contacted dealer who could not remedy problem. Dealer replaced alternator, bad fuel pump wire and fuel pump, however problem still exists. Vehicle is still at dealership.

- Parksburg, PA, USA

The vehicle expierened a fire under the hood. Nlm

- Capital Heights, MD, USA

While driving the vehicle at 55-60 mph the vehicle completely shuts down. It gives no warning. Took the vehicle to the dealer a total of four times, and this fifth time consumer had the dealer come and pick the vehicle up for repairs. Nlm

- Keil, KY, USA

While driving vehicle stalls without warning, almost causing collision. Dealer contacted, cause unknown.

- Bakersfield, CA, USA

While driving over bumps in pavement engine completely shutsdown, cause unknown.

- South Hackensack, NJ, USA

Intermittently when vehicle runs over a bump it causes engine to stall out. Vehicle been in dealer shop on three occasions, and unable to duplicate the problem. Feel free to provide any further information.

- South Hackensack, NJ, USA

Accelerating onto freeway, noticed smoke out of back of car- pulled over and flames coming out of engine. Fire dept. Put out- fire marshall invest. Started- had to cut battery lines to stop fire and took 45 min to put fire out, gas spraying throughout engine and fuel system. Car totalled..

- Tualatin, OR, USA

Consumer states vehicle has no power for a short time when starting from a stop, while in traffic it will not move for a few seconds or several seconds before finally moving forward, consumer has been to dealer eight times for this problem and dealer can not find a remedy.

- Palmyra, NY, USA