1991 Mercury Cougar Vehicle speed control Problems
- Complaints
- 9about this part
- Share
- 12%of 73 total for the year
- Median mileage
- 95,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the vehicle speed control of the 1991 Mercury Cougar, 12% of the 73 complaints for this model year. Where a mileage was given, the median is 95,000 miles.
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.
“Dt: the contact stated car was revving when starting it up. When putting it in drive in went down somewhat. It felt like it was going to take off by itself. This happened on 8-31-05. Back in 1998 the contact was having the same problem. She took it to a dealer, and they replaced a chip that had broken under the hood. She felt this was same problem that she experienced in 1998. The contact was planning to take vehicle to a dealer close to her as soon as possible. She was not going to drive the car because she was afraid. She will have it towed. Updated 11/2/2005 -”
NHTSA complaint #10135063, filed 2005-09, 95,000 miles“While driving at 30mph the vehicle had an outburst of sudden acceleration. Consumer tried and stopped vehicle, it was placed in reverse and also park, but the vehicle kept on going. To stop vehicle consumer had to shut the engine off, and coasted the vehicle to a stop. Dealer was contacted.”
NHTSA complaint #831660, filed 1998-12“While driving at 70 MPH it experienced a sudden acceleration, consumer removed foot from the pedal and it stuck to the floor and accelerated to 75 while the consumer was braking hard. It just kept lunching forward. Dealer has been contacted.”
NHTSA complaint #846942, filed 1999-09Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2002 | 4 | 4% |
| 2001 | 3 | 4% |
| 2000 | 16 | 8% |
| 1999 | 31 | 7% |
| 1997 | 2 | 3% |
| 1996 | 5 | 8% |
| 1995 | 7 | 6% |
| 1994 | 11 | 8% |
| 1993 | 4 | 2% |
| 1992 | 8 | 9% |
| 1991 | 9 | 12% |
| 1990 | 18 | 21% |
| 1989 | 21 | 26% |
| 1988 | 10 | 18% |
| 1987 | 3 | 9% |
| 1986 | 2 | 15% |
| 1985 | 2 | 20% |
| 1984 | 1 | 6% |
Other parts of the 1991 Mercury Cougar
17 complaintsBrakes
11 complaintsElectrical system
11 complaintsSeat belts
9 complaintsExterior lighting
8 complaintsFuel system
6 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsSuspension
4 complaintsLatches, locks and linkages
2 complaintsBody and structure
2 complaintsAir bags
1 complaintsOther or unknown
1 complaints
← All problems reported for the 1991 Mercury Cougar
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