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Vehicle speed controlPart report

2000 Mercury Grand Marquis Vehicle speed control Problems

Complaints
13about this part
Share
8%of 162 total for the year
Median mileage
98,900miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 13 complaints about the vehicle speed control of the 2000 Mercury Grand Marquis, 8% of the 162 complaints for this model year. Where a mileage was given, the median is 98,900 miles. 3 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.

“While driving 70 MPH vehicle stalled. Cruise control was engaged. After waiting for a little while the vehicle was restarted. Vehicle continued to run for a while before it stalled again. Vehicle was towed to a repair shop, and nothing could be found.”

NHTSA complaint #10109241, filed 2005-01, 30,000 miles

“The contact owns a 2000 Mercury Grand Marquis. While driving various speeds, the vehicle hesitated to accelerate. The failure occurred most frequently when traveling up hill. The failure was intermittent and the check engine warning indicator illuminated. The dealer was not notified. The vehicle was not diagnosed or repaired. The contact sprayed carburetor fluid on the intake manifold and noticed a crack. The manufacturer was made aware of the failure. The failure mileage was 118,000.”

NHTSA complaint #11210300, filed 2019-05, 118,000 miles

“The contact stated when the cruise control was deactivated manually or deactivated by applying brake pressure, there was a loud popping noise. The dealership determined this was by pressure in the cruise control line. The contact expressed this problem was related to brake repair work performed by the dealership.”

NHTSA complaint #10164914, filed 2006-08, 63,196 miles

“The contact owns a 2000 Mercury Grand Marquis. The contact stated that while sitting in an intersection with the brakes depressed, the vehicle abnormally accelerated and lightly crashed into another vehicle. The air bags then deployed abnormally, several moments after the crash occurred. The contact was injured by the air bag and sustained lacerations to his left arm. A police report was filed. The vehicle was inspected by a dealer and they advised that the air bags should not have deployed without a forceful impact. The vehicle was repaired. …”

NHTSA complaint #10384186, filed 2011-02, 200,000 miles

“The contact stated the engine revved for no apparent reason and the check engine light illuminated previously. The vehicle has not be taken to the dealer. The vehicle had one accident about 2.5 years ago when the vehicle hit a deer. The dealer determined then that there were no engine problems after the accident, only damage to the body of the vehicle. The contact expressed that on two occasions while the vehicle was being parked, the engine has surpassed 5000 rpms.”

NHTSA complaint #10162249, filed 2006-07, 88,000 miles

Vehicle speed control: other model years

YearComplaintsShare of year
2010312%
2009415%
20081519%
20071314%
20063726%
2005398%
2004237%
2003277%
20021722%
20012717%
2000138%
1999127%
199896%
1997248%
1996198%
19952313%
19943321%
19931913%
19923112%
19911215%
1990916%
19891424%
19881216%
1987716%
198615%
1985419%
1984427%
1983114%

Other parts of the 2000 Mercury Grand Marquis

Exterior lighting
21 complaints
Brakes
18 complaints
Steering
18 complaints
Electrical system
17 complaints
Engine cooling
17 complaints
Visibility (wipers, defrost, mirrors)
16 complaints
Suspension
15 complaints
Seat belts
9 complaints
Engine
8 complaints
Fuel system
8 complaints
Tires
7 complaints
Air bags
6 complaints

← All problems reported for the 2000 Mercury Grand 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