One problem related to power train has been reported for the 2003 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Buick Regal based on all problems reported for the 2003 Regal.
The contact owns a 2003 Buick Regal. While driving 20 mph, the vehicle accelerated independently when the accelerator pedal was not depressed. The failure recurred intermittently. The vehicle was taken to the dealer where it was diagnosed that the power train control module failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 82,000.