1993 Mercury Grand Marquis exterior lighting problems
11 owner complaints filed with NHTSA name the exterior lighting on the 1993 Mercury Grand Marquis — 8% of all complaints for this model year.
What owners report
“Extremely dangerous situation exists whereas the headlights can randomly flicker off during driving, only stopped by kicking the light control module above the accelerator pedal repeatedly with limited and temporary results. First occurrence was on the interstate during the night with moderate…”
filed Mar 9, 2020
“Tl* the contact owns a 1993 mercury grand marquis. While driving at approximately 55 mph, the headlights failed. The contact shut off the engine and when restarting, the headlights were operating as normal. The contact discovered that the wiring harness was burned and replaced the harness. The…”
filed Jun 17, 2010
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Lamp-brake-invadvertent disabling of brake shift interlock. *mj
02176 · Service Bulletin/Repair Instructions · issued Sep 2, 2002
Exterior Lighting problems in other Grand Marquis years
| Year | Reports | Share |
|---|---|---|
| 2010 Grand Marquis | 2 | 8% |
| 2009 Grand Marquis | 1 | 4% |
| 2008 Grand Marquis | 5 | 6% |
| 2007 Grand Marquis | 5 | 5% |
| 2006 Grand Marquis | 6 | 4% |
| 2005 Grand Marquis | 292 | 60% |
| 2004 Grand Marquis | 206 | 59% |
| 2003 Grand Marquis | 207 | 57% |
| 2002 Grand Marquis | 6 | 8% |
| 2001 Grand Marquis | 11 | 7% |
| 2000 Grand Marquis | 21 | 13% |
| 1999 Grand Marquis | 20 | 12% |
Other reported problem areas on the 1993 Mercury Grand Marquis
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.