1993 Mercury Grand Marquis problems & reliability
144 owner complaints filed with NHTSA for the 1993 Mercury Grand Marquis, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
6 complaints report injuries (7 injured).
Federal crash records (FARS 2020–2023): 1993 Mercury Grand Marquis vehicles were involved in 1 fatal crash with 1 occupant death. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Power Train | 29 | 20% |
| Service Brakes, Hydraulic | 22 | 15% |
| Electrical System | 20 | 14% |
| Vehicle Speed Control | 19 | 13% |
| Steering | 18 | 13% |
| Exterior Lighting | 11 | 8% |
| Seats | 10 | 7% |
| Visibility | 8 | 6% |
| Engine and Engine Cooling | 7 | 5% |
| Air Bags | 6 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“Driving on the NYS Thruway with Cruise Control on and it dropped out. I tried to reengage several times and it would not engage. On the way home I tried it again it kicked on and kicked off right away and since this incident I've had no cruise control. I researched recalls and see there are 3 1999 Recall 99V124000…”
Vehicle Speed Control · filed Jul 1, 2022
“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 traffic. Multiple other…”
Exterior Lighting · 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 failure continued to…”
Exterior Lighting · filed Jun 17, 2010
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- SPEED CONTROL DEACTIVATION SWITCH FIRES
Engineering Analysis EA02025 · opened Sep 6, 2002 · closed Jun 30, 2004
- FUEL-FED FIRES
Defect Petition DP02007 · opened Aug 22, 2002 · closed Dec 4, 2002
- POST REAR END COLLISION FIRES
Investigation SQ01014 · opened Nov 27, 2001 · closed Oct 3, 2002 · led to recall 02I003000
- ENGINE COMPARTMENT FIRES
Recall Query RQ01002 · opened Sep 20, 2001 · closed Sep 6, 2002 · led to recall 99V124000
- HOOD FLY-UP WHILE DRIVING
Preliminary Evaluation PE93086 · opened Oct 1, 1993 · closed Feb 28, 1994
Technical service bulletins
78 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1993 Mercury Grand Marquis. The 10 most recent:
Ford/lincoln mercury: certain 1992-2001 model year crown victoria, grand marquis, and town car vehicles registered in the states of wisconsin and connecticut upgrade modifications for high speed rear impacts. *pe
CSP 08B04 · Service Bulletin/Repair Instructions · issued May 15, 2008
Remote keyless entry (rke) - service tips. *tt
03181 · Service Bulletin/Repair Instructions · issued Sep 15, 2003
New transmission cooler flusher - service tips. 2003 escort and super duty f series included. *tt
03148 · Service Bulletin/Repair Instructions · issued Jul 21, 2003
Climate control a/c service tech tips. *eh
02208 · Service Bulletin/Repair Instructions · issued Oct 14, 2002
Lamp-brake-invadvertent disabling of brake shift interlock. *mj
02176 · Service Bulletin/Repair Instructions · issued Sep 2, 2002
Transfer service tips for the front wiper motor mount bracket and depressed park output arm. *tt
02107 · Service Bulletin/Repair Instructions · issued May 27, 2002
Some engine assemblies with aluminum cylinder heads repaired in-vehile have been found to leak coolant and/or oil from the cylinder head gasket area. *tt
0214 · Service Bulletin/Repair Instructions · issued Jan 21, 2002
Parts and procedure to reduce the potential of fuel tank punctures during rare and extremely high-speed rear impacts. *tt
012114 · Service Bulletin/Repair Instructions · issued Oct 29, 2001
This aritlce is to provide information on replacement of old style hood lamp switch to the rvised mechanical hood lamp switch. *tt
01194 · Service Bulletin/Repair Instructions · issued Oct 1, 2001
Brake shift interlock.*jb
01181 · Service Bulletin/Repair Instructions · issued Sep 17, 2001
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 1993 Mercury Grand Marquis has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1993 Mercury Grand Marquis?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.