1990 Mercury Topaz problems & reliability
48 owner complaints filed with NHTSA for the 1990 Mercury Topaz. 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.
1 complaint report injuries (2 injured).
Federal crash records (FARS 2020–2023): 1990 Mercury Topaz 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 |
|---|---|---|
| Electrical System → | 21 | 44% |
| Engine and Engine Cooling | 6 | 13% |
| Service Brakes, Hydraulic | 6 | 13% |
| Vehicle Speed Control | 6 | 13% |
| Steering | 4 | 8% |
| Exterior Lighting | 3 | 6% |
| Seat Belts | 3 | 6% |
| Fuel System, Gasoline | 2 | 4% |
| Suspension | 2 | 4% |
| Equipment | 1 | 2% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 15 reported components →Complaints by incident year
What owners report
“Vehicle stalled 7 times at various speeds. Vehicle was taken to dealer 5 times, ignition module was replaced twice, multi-function switch once ,and starter once.*ak”
Electrical System · filed Aug 21, 2002
“Headlight covers made of plastic became yellow, and makes night driving difficult. Please provide any further information.*ak”
Exterior Lighting · filed Apr 4, 2002
“The vehicle's tpi module is defective and is causing the vehicle to stall intermittently, consumer request that the manufacturer replace this component at their expense. Nlm”
Electrical System · filed Apr 25, 2001
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- REAR BRK ADJUSTER FAILURE
Preliminary Evaluation PE96005 · opened Jan 19, 1996 · closed May 28, 1996
- REAR BRAKE SYSTEM FAILURE
Defect Petition DP96002 · opened Jan 11, 1996 · closed Jan 19, 1996
- FAILED PASSIVE RESTRAINT
Engineering Analysis EA90008 · opened Dec 27, 1989 · closed Dec 31, 1991
Technical service bulletins
37 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1990 Mercury Topaz. 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
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
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
99129 · Service Bulletin/Repair Instructions · issued Jun 14, 1999
Ford motor company now recommends sae 5w-30 viscosity grade for servicing any ford gasoline-powered vehicle regardless of model year. *tt
99816 · Service Bulletin/Repair Instructions · issued May 3, 1999
Ford motor company has released a new electrical grease ( f8az - 19g208-aa ) to reduce the possibility of moisture corrosion at the terminals. *yc
98246 · Service Bulletin/Repair Instructions · issued Dec 7, 1998
A new silicone gasket and sealant. *yc
9874 · 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 1990 Mercury Topaz 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 1990 Mercury Topaz?
- · 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.