One problem related to car accelerates on its own has been reported for the 2002 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Grand Marquis based on all problems reported for the 2002 Grand Marquis.
Sudden acceleration of vehicle.
| Vehicle Speed Control problems | |
| Cruise Control problems | |
| Accelerator Stuck problems | |
| Speed Control Springs problems | |
| Car Accelerates On Its Own problems |