One problem related to car accelerates on its own has been reported for the 2003 Mercury Marquis. The most recently reported issues are listed below.
The contact complained about intermittent sudden acceleration. It occurred when the climate was hot, and the engine was warm. When taking foot off of the accelerator to move it to the brake pedal the engine revved and the ripens warehouse. The dealer completed diagnostic testing, and the problem could not be duplicated. No repairs have been made.
| Vehicle Speed Control problems | |
| Accelerator Stuck problems | |
| Car Accelerates On Its Own problems | |
| Accelerator Pedal problems |