Problems owners report
Complaints filed with NHTSA about the 1990 Mercury Cougar, by the system named in each complaint. One complaint can name several.
- Electrical system19
- Vehicle speed control18
- Seat belts15
- Service brakes, hydraulic9
- Engine and engine cooling9
- Exterior lighting5
- Latches/locks/linkages5
- Steering4
- Visibility4
- Fuel system, gasoline4
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 4 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
New York safety inspections
At its first New York inspection the 1990 Mercury Cougar failed the safety check 0.00% of the time — 100% less often than the average 1990 passenger car (1.16%). Median odometer at inspection: 80,979 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
In New Zealand
1 1990 cars are on the New Zealand register; 100% arrived as used imports, 0% were sold new in New Zealand.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Recalls in Canada
5 Transport Canada recalls for the 1990 Mercury Cougar.
| 1995212 29 Nov 1995 | Electrical A SHORT CIRCUIT COULD DEVELOP IN THE IGNITION SWITCH THAT COULD LEAD TO OVERHEATING, SMOKE, AND POSSIBLY FIRE IN THE STEERING COLUMN OF THE VEHICLE. THIS CONDIT… |
| 1994041 28 Feb 1994 | Emissions NOTE: THUNDERBIRD SUPER COUPE AND COUGAR XR7 EQUIPPED WITH MANUAL TRANSMISSION AND 3.8 LITRE SUPERCHARGED ENGINE. THESE VEHICLES MAY NOT COMPLY WITH C.M.V.S.S.… |
| 1992077 30 Jun 1992 | Lights And Instruments NOTE: ALSO INCLUDES SOME MEDIUM AND HEAVY TRUCKS. THESE VEHICLES MAY NOT COMPLY WITH C.M.V.S.S. 108 - LIGHTING. DAYTIME RUNNING LIGHT MODULE MAY MALFUNCTION … |
| 1991073 7 May 1991 | Visual System THE NUTS WHICH HOLD THE WIPER MOTOR TO THE WIPER MODULE MAY NOT HAVE BEEN ADEQUATELY TIGHTENED AND MAY LOOSEN OR COME OFF. IF THIS HAPPENS, THE WIPER PATTER… |
| 1990104 5 Jul 1990 | Emissions NOTE: VEHICLES EQUIPPED WITH AUTOMATIC TRANSMISSION AND 3.8L SUPERCHARGED ENGINE. THESE VEHICLES DO NOT COMPLY WITH C.M.V.S.S. 1101- EMISSION DEVICE. INCORR… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.
THE NUTS WHICH HOLD WINDSHIELD WIPER MOTOR TO THE WIPER MODULE MAY NOT HAVE BEEN SUFFICIENTLY TIGHTENED AND MAY LOOSEN OR COME OFF. THIS CAUSES CHANGED WIPER PATTERNS, OR THE WIPERS MAY JAM IF TWO OF THE THREE NUTS COME OFF.
BATTERY TO STARTER CABLES ARE LONGER THAN SPECIFIED; EXCESSIVE CABLE LENGTH COULD CONTACT ENGINE DAMPER PULLEY.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Mercury told its dealers about the 1990 Mercury Cougar: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 623988 | INFORMATION REGARDING TRANSMISSION FLUID USAGE CHARTS. *SLC |
| 623944 | SOME VEHICLES MAY EXHIBIT HEATER CORE LEAKS. *SLC |
| 618546 | SUBJECT REGARDING CLIMATE CONTROL - EATC - BLOWER MOTOR CONTROL SERVICE TIPS. *JB |
| 616522 | SUBJECT REGARDING CONTAMINATION FROM PRIOR TRANSMISSION CONCERNS OR EXCESS WEAR MAY BE TRAPPED IN THE TRANSMISSION FLUID COOLING SYSTEM. *TT |
| 612203 | INFORMATION REGARDING THE NEW TRANSMISSION COOLER FLUSHER- SERVICE TIP. *MJS |
| 6090087 | INFORMATION ON IDENTIFYING NON-APPROVED / ALTERNATE REFRIGERANTS WHICH COULD CAUSE SAFETY, AND PERFORMANCE CONCERNS IF INSTALLED IN FORD A/C SYSTEMS. *TT |
| 6089681 | SUBJECT ON A WIRE HARNESS TERMINAL REPAIR KIT AVAILABLE FOR REPAIRING ELECTRICAL WIRING HARNESSES. *TT |
| 608431 | INFORMATION ON THE NEW FLUSH AND FILL TOOL AVAILABLE THROUGH ROTUNDA. *TT |
| 606460 | EXPERIENCING A WHINE / BUZZ TYPE NOISE IN THE SPEAKERS OF THE ENTERTAINMENT RADIO OR TWO-WAY RADIO ON VEHICLES WITH AN IN-TANK ELECTRIC FUEL PUMP. *TT |
| 606420 | FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR. *TT |
| 603724 | MASS AIR FLOW (MAF)- SENSOR CONTAMINATION- SERVICE TIP. *AK |
| 601343 | A NEW SILICONE GASKET AND SEALANT. *YC |
| 601341 | EXPERIENCING A WHINING / BUZZING NOISE IN THE SPEAKERS OF THE ENTERTAINMENT RADIO OR TWO-WAY RADIO. *TT |
| 601312 | INFORMATION ON A BUZZING OR RATTLE NOISE FROM THE EXHAUST SYSTEM. *TT |
| 601290 | INFORMATION ON TIRE COMPANY TELEPHONE NUMBERS FOR CUSTOMER ASSISTANCE. *YC |
| 601238 | INFORMATION ON A NEW TRANSMISSION FLUID USAGE CHART. *YC |
| 601012 | THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE. *YC |
| 53660 | VEHICLES EXHIBITING A "SQUEAKING" OR "CHIRPING" FROM THE BLOWER MOTOR AT LOW BLOWER MOTOR SPEEDS. *YC |
| 51990 | BLOWER MOTOR- "CHIRPING" OR "SQUEAKING" FROM BLOWER MOTOR AT LOW SPEEDS. *JD |
| 51987 | FUEL ECONOMY- CUSTOMER EXPECTATIONS VERSUS VEHICLE USAGE. *JD |
| 51945 | FLUID- TRANSMISSION FLUID USAGE CHARTS. *JD |
| 50997 | TRANSAXLE - TORQUE CONVERTER REPLACEMENT GUIDELINES AND TORQUE CONVERTER/TRANSAXLE COOLING SYSTEM CLEANING PROCEDURES - SERVICE TIP. *TW |
| 50940 | WINDSHIELD AND INTERIOR GLASS - FOG/FILM. *TW |
| 50908 | TORQUE CONVERTER - LEAK TEST PROCEDURE - SERVICE TIP. *TW |
| 50905 | WIRING - ELECTRICAL DIODE IDENTIFICATION AND SERVICE REPLACEMENTS. *TW |
NHTSA manufacturer communications (public domain)
NHTSA investigations
FAULTY SEATBELT BUCKLES
THRTTL VLV LINKAGE BUSHING
THRTTL VLV LINKAGE BUSHING
HOOD LATCHES FAIL
HOOD LATCHES FAIL
NHTSA Office of Defects Investigation