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Vehicle speed controlPart report

1985 Mercury Marquis Vehicle speed control Problems

Complaints
1about this part
Share
20%of 5 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the vehicle speed control of the 1985 Mercury Marquis, 20% of the 5 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.

“Going up ramp, engine light on, making loud noise, engine surged forward quickly, applied brakes to reduce speed, going up hill, engine raced ahead. Did not take to dealer.”

NHTSA complaint #806616, filed 1996-12

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 1985 Mercury Marquis

Electrical system
1 complaints
Engine cooling
1 complaints
Tires
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 1985 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