IllustrationUPON STARTING THE VEHICLE IT CAUGHT FIRE IN THE ALTERNATOR, CONSUMER HAS REPLACED THE PART ON TWO OCCASION DUE TO A ELECTRICAL SHORT. *AK
1991 Mercury Grand Marquis
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 1991 Mercury Grand Marquis do not stand out strongly from the model-year median of 78.
About this comparison →How this year compares
Owner complaints by model year
Compare all Grand Marquis years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 82 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 21 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
12 crash reports14 fire reports10 injury reports
Electrical System complaints
21 reportsUPON STARTING THE VEHICLE, THE VEHICLE CAUGHT FIRE IN THE ALTERNATOR, CONSUMER HAS REPLACED THE ALTERNATOR DUE TO AN ELECTRICAL SHORT IN THE ALTERNATOR. *AK
ALTERNATOR REPLACED TWICE.
AN ELECTRICAL SHORT IN THE ALTERNATOR, CAUSING THE ALTERNATOR TO BURN OUT. PLEASE DESCRIBE. *AK
WHILE DRIVING DURING ANY WEATHER CONDITION THE ABS BRAKES WILL LOCK UP EVERY SIX MONTHS. *AK FRONT DOOR LOCKS FREEZE IN THE WINTER LEAVING THEM INOPERABLE. CONSUMER STATES SOME WIRES BURNED CAUSING BLACK SMOKE TO FILL UP VEHICLE. BRAKES VERY ROUGH WHEN APPLIED. OIL LEAK. *SLC
STARTED ENGINE, SMOKE STARTED COMING FROM TRUNK AREA, SHUT OFF ENGINE, REMOVED MAT OUT OF TRUNK, WIRING HARNESS BURNT, NO FLAMES.*AK
WHEN PULLING KEY OUT OF IGNITION SYSTEM OR WHILE DRIVING KEY GETS HOT. PLEASE DESCRIBE DETAILS.*AK
SMOKE STARTED COMING FROM HOOD, ALTENATOR PLUG FAILED RESULTING IN ALTERNATOR CATCHING FIRE. KT
ELECTRICAL SYSTEM FAILURE, WINDSHIELD WIPERS, TURN SIGNALS INDICATOR LIGHTS, POWER DOOR LOCKS MALFUNCTION. TT
VEHICLE CAUGHT FIRE IN TRUNK DUE TO A WIRE UNDERNEATH THE JACK. JACK SOME HOW RESULTED IN WIRE SHORTING. PLEASE DESCRIBE DETAILS. TT
Official recalls
191V048000 · Power Train:automatic Transmission
Mar 18, 1991
THE PARK ROD ASSEMBLY CONTAINS A PARK CAM WITH INADEQUATE SURFACE HARDNESS, WHICH COULD LEAD TO PARK DISENGAGEMENT OR NO PARK ENGAGEMENT WHEN THE LEVER IS PLACED IN PARK.
Consequence & remedy
Consequence: IF PARK IS NOT ENGAGED AND THE PARKING BRAKE IS OFF, AVEHICLE ROLL-AWAY COULD RESULT.
Remedy: REPLACE PARK ROD ASSEMBLY ON AUTOMATIC TRANSMISSIONS.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE91125 · Brake Line Punctures
Opened Sep 11, 1991 · Closed Jan 15, 1992
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
There is no summary currently available