One problem related to exterior lighting has been reported for the 2007 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Mercury Grand Marquis based on all problems reported for the 2007 Grand Marquis.
The instrument lights/gauges work intermittently. The digital odometer won't display.
| Headlights problems | |
| Exterior Lighting problems |