Table 1 shows six common exterior lighting related problems of the 1999 Mercury Grand Marquis. The number one most common problem is related to the headlights (13 problems). The second most common problem is related to the exterior lighting (three problems).
| Problem Category | Number of Problems |
|---|---|
| Headlights problems | |
| Exterior Lighting problems | |
| Headlight Switch problems | |
| Hazard Flashing Warning Light Unit problems | |
| Turn Signal problems | |
| Turn Signal Switch problems |
Tl - the contact owns a 1999 Mercury Grand Marquis. The contact stated that while driving 65 mph her headlights seized intermittently. The contact stated that the vehicle exhibited the same symptoms as NHTSA campaign number: 15v861000(exterior lighting). Read details...
Tl- the contact owns a Mercury Grand Marquis. The contact stated while driving approximately 40-45 mph the vehicles head lights stopped functioning independently. The failure happened without warning. The vehicle was taken to independent mechanic diagnosed that the control module behind the Read details...
Problem: intermittent headlight failure while driving at night with 1999 (1998 year of manufacture) Mercury Grand Marquis. Lights go off for as long as 2-3 seconds and come back on again for a second or two, then go off again, then back on again, etc--and only occurs after the vehicle has been Read details...