The contact owns a 2005 Buick Lacrosse. While driving between 20-30 mph, the vehicle hesitated when the accelerator pedal was depressed. The speed would increase after driving 3-4 miles. When the vehicle was started after being parked for hours, it idled roughly and the "traction control" and "engine power reduced" warning indicator lights illuminated. The dealer reprogrammed the PCM, but the failure continued. The vehicle was taken to another dealer and they were unable to determine the cause of the failure. The failure mileage was 5,000 and current mileage was 15,800. Updated 3/19/08 the consumer stated the vehicle runs rough and would not go over 40mph. The dealer performed brake pedal recall. The consumer stated there was a clunking noise in the steering column. Updated 03/19/08

- Wisconsin Rapids, WI, USA

At times, car will not accelerate. When attempting to increase speed, usually when accelerating into high speed, the car does nothing for a few seconds, then it begins to buck, still with no speed acceleration. It has lasted from a few seconds to 10 minutes. It only happens periodically, and no trouble lights appear on the dashboard.

- Seekonk, MA, USA