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Vehicle speed controlPart report

1991 Mercury Marquis Vehicle speed control Problems

Complaints
2about this part
Share
22%of 9 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the vehicle speed control of the 1991 Mercury Marquis, 22% of the 9 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“While vehicle was parked in driveway consumer changed gear to reverse and vehicle accelerated for unknown reason. Dealer/ manufacturer were not notified at this time. Seeking help in this matter form NHTSA . Also vehicle is equipped with crusie control.”

NHTSA complaint #835832, filed 1999-03

Vehicle speed control: other model years

YearComplaintsShare of year
2003515%
200219%
2001312%
200029%
1999417%
199827%
199748%
199626%
1995315%
1994827%
1993417%
1992521%
1991222%
1990117%
1989110%
1988111%
1985120%

Other parts of the 1991 Mercury Marquis

Electrical system
3 complaints
Brakes
2 complaints
Air bags
1 complaints
Seats
1 complaints
Steering
1 complaints

← All problems reported for the 1991 Mercury Marquis

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology