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Vehicle speed controlPart report

1999 Mercury Marquis Vehicle speed control Problems

Complaints
4about this part
Share
17%of 24 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the vehicle speed control of the 1999 Mercury Marquis, 17% of the 24 complaints for this model year. 1 of these say a crash was involved, according to the filers.

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.

“My mothers car was off & in park & all of a sudden the engine reved up and the car shot through her gargage door and almost through the back garage wall with my mom in the car.”

NHTSA complaint #760970, filed 2002-04

“The vehicle experiences sudden acceleration at various speeds. The owner has to stomp on the brake several times in order to stop the vehicle. Owner will notify the manufacturer.”

NHTSA complaint #10107284, filed 2005-01

“While pullung out of a parking lot engine started to rev really so loud that people in side the store could hear it. Then, consumer smelled rubber burning from tires, then it took off in reverse.”

NHTSA complaint #880549, filed 2001-02

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 1999 Mercury Marquis

Brakes
4 complaints
Electrical system
3 complaints
Engine cooling
3 complaints
Steering
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Equipment
2 complaints
Body and structure
2 complaints
Air bags
1 complaints
Electronic stability control
1 complaints
Exterior lighting
1 complaints
Fuel system
1 complaints
Latches, locks and linkages
1 complaints

← All problems reported for the 1999 Mercury Marquis

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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