One problem related to automatic transmission control module has been reported for the 2005 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Grand Marquis based on all problems reported for the 2005 Grand Marquis.
The contact owns a 2005 Mercury Grand Marquis. While driving 60 mph, the tracking control light and the abs light illuminated and the vehicle began shaking. The owners manual indicated that the control tracking button would deactivate it; however, the light remained illuminated. The dealer stated that he could diagnose the failure. The contact is aware of the safety risk. The failure mileage was 39450 and the current mileage was 39500. Updated 10/5/09 updated 10/07/09.
| Power Train problems | |
| Automatic Transmission Control Module problems |