Total Complaints
4 filings
MERCURY MARQUIS · model year
1986 MERCURY MARQUIS
4 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1986MERCURYMARQUIS carries 4 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1986 MARQUIS is vehicle speed control with 1 filings, followed by electrical system:wiring:fuses and circuit breakers (1) and wheels (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 22 investigation files overlapping the 1986 MARQUIS. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
4
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| VEHICLE SPEED CONTROL | 1 |
| ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS | 1 |
| WHEELS | 1 |
| FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY | 1 |
Recent Complaints
19990624FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
WHY ARE THE GAS TANKS ROTTING OUT WHEN YEARS AGO GAS TANKS LASTED A LIFETIME AND MORE. EITHER THE GAS HAS AN ADDATIVE THAT IS DOING IT OR THE MFGS' OF GAS TANKS ARE USING POOR QUALITY MATERIALS. THESE LEAKS START AS PIN HOLES AND THEN GROW SO MILLIONS COULD BE DUMPING GASOLINE ALL OF OUR ROADS THAT IS FINDING ITS WAY INTO OUR AIR AND WATER. THIS PROBLEM IS AS SERIOUS AS THE GAS STATION TANKS OF YEARS AGO AND FOR SOME REASON IT IS GOING BY UNNOTICED. I WOULD LIKE A RESPONSE TO THIS COMPLAINT. MY COMPLAINT HAS ALSO BEEN REPORTED TO THE EPA. *AK
19970122WHEELS
LEFT REAR WHEEL CAME OFF, CAUSING ACCIDENT. (OHIO STATE POLICE REPORT)
19960209ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
ELECTRICAL SHORT, CONTINUES TO BLOW FUSES. TT
19960202VEHICLE SPEED CONTROL
WHILE DRIVING ON ICY PAVEMENT VEHICLE ACCELERATED WIDE OPEN FOR NO APPARENT REASON. HAD TO TURN OFF IGNITION TO STOP VEHICLE. PLEASE DESCRIBE DETAILS. TT
Compare 1986MERCURYMARQUIS to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1986 MERCURY MARQUIS have?▼
The 1986 MERCURY MARQUIS has 4 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1986 MERCURY MARQUIS?▼
The most-complained component for the 1986 MERCURY MARQUIS is VEHICLE SPEED CONTROL with 1 complaints. Other frequently reported areas include ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS and WHEELS.
Is the 1986 MERCURY MARQUIS safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.