The 1984 Mercury Grand Marquis has 1 NHTSA recall campaign affecting an estimated 530,000 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 24 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.
THE BOLTS THAT ATTACH THE D-SHAPED RING FOR THE SHOULDER BELT ARE INADEQUATELY SUPPORTED BY THE MATERIAL IN WHICH THEY ARE MOUNTED. THE ATTACHMENT DOES NOT COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES".
DEALERS WILL INSTALL NEW ATTACHING HARDWARE TO IMPROVE THE STRENGTH OF THE MOUNTING.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“The car constantly stalls upon turning, deceleration, and braking, causing near traffic accidents. Car was check over for malfunction, but to no avail.the rear of the car is sagging very badly, causing me to have to replace the rear bumper and tailpipe. The height of the car from ground to frame…”
“The car constantly stalls upon turning, deceleration, and braking, causing near traffic accidents. Car was check over for malfunction, but to no avail.the rear of the car is sagging very badly, causing me to have to replace the rear bumper and tailpipe. The height of the car from ground to frame…”
“Consumer had the vehicle in park, then put the vehicle in drive, and the vehicle just took off, causing the consumer to run in a yard and went down an enbankment and hit a tree. The insurance company claim that the throttle got stuck. *ak *ml”
“Engine failed to start after vehicle parked overnight, cause unknown, not checked by dealer, sears checked battery/alternator, no problem. Vehicle available for inspection. *ak”
“When coming to a stop the brake pedal and the accelerator have to be depressed to keep the vehicle from stalling. *ak”
“Drove 5 miles, shut off engine, returned within 5 to 6 minutes, flames were coming up from underhood in area of windshield, fuel injected engine. *ak”
“Head liner fabric/sun visors hanging down, obscuring vision.”
“Dashboard vinyl cracked, deteriorated and disintegrated, falling into speaker openings, creating potential for electrical short.”
There is no summary currently available
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1984 Mercury Grand Marquis as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.