One problem related to adaptive equipment 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.
Intermitten failure of headlights. Ford customer satisfaction recall 14n01. No parts are available for over a year. Extreme safety hazzard.
| Equipment problems | |
| Adaptive Equipment problems | |
| Air Conditioner problems |