IllustrationWHILE DRIVING ON THE HIGHWAY WITH CRUISE CONTROL SET STEPPED ON THE BRAKES, BUT THEY DIDN'T DEACTIVATE THE SPEED CONTROL. TURNED VEHICLE OFF, AND THEN BACK ON, AND THAT DIDN'T HELP. HAD TO OPEN THE HOOD TO DISCONNECT THE SWITCH. CONTACTED DEALER. *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
Vehicle Speed Control complaints
12 reportsDRIVER TURNED ON IGNITION ,PUT TRANSMISSION IN REVERSE WITH FOOT STILL ON BRAKES , THE VEHICLE TOOK OFF IN REVERSE, HITTING 4 VEHICLES, AND THEN WENT FORWARD HITTING A BUILDING. *AK
WHILE PARKED ON AN INCLINE VEHICLE ACCELERATED INTO REVERSE, RESULTING IN A MINOR COLLISION. *AK
SEVERAL ACCIDENTS OCCURED, DUE TO SUDDEN ACCELERATION. *YC
ACCELERATOR CABLE STUCK ON TWO OCCASIONS CAUSING LOSS OF CONTROL.
VEHICLE WAS PARKED AND TURNED THE VEHICLE ON, SHIFTED GEAR INTO DRIVE, HAD FOOT ON THE BRAKE PEDAL AND THE CAR LUNGED FORWARD AND HIT A PARKED CAR. NOBODY WAS INJURED. *AK
VEHICLE EXPERIENCED SUDDEN ACCELERATION RESULTING IN AN ACCIDENT.
CABLE ON THE ACCELERATOR JAMMED CAUSING UNWANTED ACCELERATION ON SEVERAL OCCASIONS, LAST INCIDENT LED TO MINOR ACCIDENT AND INJURY TO CONSUMER.
SUDDEN ACCELERATION.
DURING COLD STARTUP SHIFTED INTO REVERSE VEHICLE SURGED REARWARD. WHEN PLACING SELECTOR GEAR INTO NEUTRAL SLIPPED TO DRIVE GEAR, SURGED FORWARD. RAN INTO HOUSE, AND WHEELS STILL SPINNING WITH BOTH FEET ON BRAKING PEDAL. *AK
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