1988 Mercury Cougar problems & reliability
55 owner complaints filed with NHTSA for the 1988 Mercury Cougar. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
6 complaints report injuries (8 injured, 3 deaths reported).
Federal crash records (FARS 2020–2023): 1988 Mercury Cougar vehicles were involved in 1 fatal crash with 1 occupant death. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Seat Belts → | 16 | 29% |
| Electrical System → | 12 | 22% |
| Vehicle Speed Control → | 10 | 18% |
| Engine and Engine Cooling | 6 | 11% |
| Visibility | 4 | 7% |
| Exterior Lighting | 3 | 5% |
| Service Brakes, Hydraulic | 3 | 5% |
| Seats | 2 | 4% |
| Steering | 2 | 4% |
| Tires | 2 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“On feb 12, 1994 my wife and her friend took my red 1988 mercury cougar ls to church at 6:30 pm. It was an extremely foggy evening. I received a call at the house at 6:50 pm that my wife had been in a car accident and that I needed to come to the site. My car was in mint condition inside and out before the accident…”
Vehicle Speed Control · filed Apr 22, 2005
“The right seltbelt buckle on the drivers side fails often. Ford no longer supplies these buckles, and they are very scarce in wrecking yards.*ak”
Seat Belts · filed Nov 17, 2004
“Consumer complained about a tire that failed from another vehicle. Front left tire tread separated from a chevrolet blazer 1984, and caused the vehicle to lose control. Vehicle hit two other vehicles, one being the consumer's vehicle, and caused severe damage. During the crash consumer's wrist was broken and the…”
Unknown OR Other · filed Feb 25, 2004
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- FAULTY SEAT BELT BUCKLES
Engineering Analysis EA95021 · opened Jul 31, 1995 · closed Sep 30, 1997
- FAULTY SEATBELT BUCKLES
Preliminary Evaluation PE95019 · opened Mar 27, 1995 · closed Jul 31, 1995
- THROTTLE STICKING
Engineering Analysis EA90009 · opened Feb 8, 1990 · closed Feb 28, 1991
- THROTTLE STICKING
Preliminary Evaluation PE90001 · opened Oct 4, 1989 · closed Feb 2, 1990
- FLOORMAT/ACCEL PEDAL INTRF
Preliminary Evaluation PE88097 · opened Aug 31, 1988 · closed Dec 2, 1988
Technical service bulletins
22 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1988 Mercury Cougar. The 10 most recent:
Information regarding transmission fluid usage charts. *slc
01157 · Service Bulletin/Repair Instructions · issued Aug 6, 2001
Some vehicles may exhibit heater core leaks. *slc
01156 · Service Bulletin/Repair Instructions · issued Aug 6, 2001
Subject regarding contamination from prior transmission concerns or excess wear may be trapped in the transmission fluid cooling system. *tt
002310 · Service Bulletin/Repair Instructions · issued Nov 13, 2000
Information regarding the new transmission cooler flusher- service tip. *mjs
0015 · Service Bulletin/Repair Instructions · issued Jan 10, 2000
Subject on a wire harness terminal repair kit available for repairing electrical wiring harnesses. *tt
99222 · Service Bulletin/Repair Instructions · issued Oct 18, 1999
Information on identifying non-approved / alternate refrigerants which could cause safety, and performance concerns if installed in ford a/c systems. *tt
99196 · Service Bulletin/Repair Instructions · issued Sep 20, 1999
Information on the new flush and fill tool available through rotunda. *tt
99152 · Service Bulletin/Repair Instructions · issued Jul 26, 1999
Information on a new transmission fluid usage chart. *yc
9888 · Service Bulletin/Repair Instructions · issued Apr 27, 1998
A new silicone gasket and sealant. *yc
9874 · Service Bulletin/Repair Instructions · issued Apr 13, 1998
Information on tire company telephone numbers for customer assistance. *yc
9852 · Service Bulletin/Repair Instructions · issued Apr 13, 1998
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1988 Mercury Cougar in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1988 Mercury Cougar?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.