1999 Mercury Mystique Vehicle speed control Problems
- Complaints
- 5about this part
- Share
- 4%of 128 total for the year
- Median mileage
- 14,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the vehicle speed control of the 1999 Mercury Mystique, 4% of the 128 complaints for this model year. Where a mileage was given, the median is 14,000 miles. 4 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 on the freeway at approximately 65 MPH accelerator got stuck and would not return to the idle speed. In the process, the accelerator cable broke, causing the vehicle to lose power. Owner called the manufacturer, and was told that it was the driver's fault, and there was nothing else they could do.”
NHTSA complaint #10119277, filed 2005-04, 14,000 miles“Car was parked in motel parking lot. I entered car at 6:55am to move car by our room to pickup bags. I had my foot on brake, started engine and shifted into reverse. The car jumped rearward at a high speed. I had not put my foot on the gas pedal. The car hit a telephone pole (about 8 feet behind were the car was parked). My body went rearward when the car hit the pole. At this time, I had my hand on the shifter (floormount) and it pulled the car into forward gear. The car shot forward and slammed into a brick column directly infront of were I was parked. …”
NHTSA complaint #742427, filed 2001-03“Consumer's wife was attempting to park, and when she placed right foot on the brakes, automobile accelerated on its own and increased the rpms, causing automobile to advance forward. It jumped the concrete. The brake could not stop the vehicle but when the vehicle stopped, the gas pedal went all the way down to the floor.”
NHTSA complaint #875611, filed 2000-11“Consumer's vehicle was in parking lot when consumer tapped the accelerator lightly, then suddenly engine roared, and vehicle accelerated on it's own up to 40-50 MPH. Consumer could not slow down vehicle, after 50-100 yards vehicle crashed into guardrail, causing extensive damage to vehicle. No injuries.”
NHTSA complaint #898656, filed 2001-11“While in a parking spot consumer put foot on brake and gas pedal went to the floor, as if it was sticking. If tapped, it would release. Consumer's car went over an embankment, consumer hit a tree, 20 feet after the embankment. That was how the car was stopped, consumer was injured in accident.”
NHTSA complaint #873361, filed 2000-10Vehicle speed control: other model years
Other parts of the 1999 Mercury Mystique
28 complaintsBrakes
21 complaintsOther or unknown
19 complaintsEngine cooling
15 complaintsElectrical system
14 complaintsVisibility (wipers, defrost, mirrors)
14 complaintsFuel system
7 complaintsAir bags
6 complaintsEquipment
6 complaintsSuspension
6 complaintsSteering
5 complaintsTransmission and drivetrain
4 complaints
← All problems reported for the 1999 Mercury Mystique
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