The contact owns a 2000 Chevrolet Impala. While driving the transmission kept slipping in and out of gear. Also the electronic stability control system caused the vehicle to drift to the right or left. Also, the lights for the instrument control panel failed. The vehicle was taken to a mechanic and the technician located several diagnostic error codes. The failure mileage was 173,009. Updated 1/5/10 the dealer replaced a sash light switch, ut that didn't resolve the problem. Updated 01/06/10.

- Mansfield, WA, USA

No crash, but the speedometer, tachometer, gas gauge goes wacky most of the time the gas gauge does not work at all, the speedometer works about 25 percent of the time, I have read complaints from other Impala owners on line and they all have the same problem, what I would like to see is a recall from G.M. it is a safety concern because you don't know how fast you are going. Also most of them said the temp. Gauge goes also and that concerns me if you car would overheat you wouldn't even know that it happened, until it was to late, now you would have to invest in a new motor and that is way to costly. Please see if there is anything you can do to help the problem to be fixed, were all in this together. They also said that the repair was to cost $500.

- Fort Wayne, IN, USA

: the contact stated the check engine light illuminated intermittently. While accelerating from a stop, the transmission dropped to the lowest gear without warning, and hesitated before engaging to the next gear. The vehicle was taken to a service dealer, who was unable to determine the cause of the problem. Also, the fuel gauge displayed an incorrect reading. Finally, while driving 30 mph, there was a rattling noise in rear wheels. The last two problems were inspected by a dealer.

- Westland, MI, USA