AI Damage1989 Mercury Marquis: common problems
Owners of the 1989 Mercury Marquis filed 10 complaints with NHTSA, most often about electrical system and service brakes. Details by component below, with sources.
Key figures
- Owner complaints
- 10
- involving a crash
- 2
What fails most often
- 1 Electrical system 40% of all complaints
- 2 Service brakes 20% of all complaints
- 3 Air bags 10% of all complaints
- 4 Fuel system 10% of all complaints
- 5 Powertrain 10% of all complaints
- 6 Tires 10% of all complaints
- 7 Vehicle speed control 10% of all complaints
- Electrical system: 4 complaints (40% of all).
- Service brakes: 2 complaints (20% of all), 1 of them with a crash reported by the owner.
- Air bags: 1 complaints (10% of all), 1 of them with a crash reported by the owner.
- Fuel system: 1 complaints (10% of all).
- Powertrain: 1 complaints (10% of all).
Symptoms owners describe
How many of the 10 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 4 | 0 | 0 |
| Service brakes | 2 | 1 | 0 |
| Air bags | 1 | 1 | 0 |
| Fuel system | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Owner states that she received muiltple injuries from which her driver's side airbag deployed after hitting curb while braking from 20 mph.
When applying brakes, there is extended stopping distance, vehicle accelerated in open throttle position, replaced master cylinder.
The labeling on the front of the container states 5w30 motor oil: on the back of the container states dextron 111 transmission fluid, because of this mislabeling of the container oil was poured into the transmission instead of transmission fluid, which destroyed in engine.
Firestone supreme tire (p215/70r15) experienced tread separation also causing damage to the muffler, consumer replaced all tires and is requesting reimbursement for replacement tires and for the damaged muffler.
While driving at 55mph on cruise control, consumer pressed button, and car continued to accelerate. Consumer pressed on brakes, and nothing happened. Consumer had to turn off the ignition.
Consumer has a vehicle that contains a fuel injection system that will turn itself off when vehicle is involved in an accident so it will not catch on fire. Consumer had cruise control set at 60 mph, driving on a busy major highway went to apply brakes to make a sudden stop,did not hit or touch any type of object…
Consumer started the car and smoke came from the iginition switch, causing the car not to start, consumer had to have the car towed.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 10,921 of 36,656 model years in the NHTSA data (top 30% most complained about).
On average one model year of the Marquis has 16 complaints (25 years in the data). This year has 10, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
- Marquis 198410 sources
- Marquis 19855 sources
- Marquis 19864 sources
- Marquis 19874 sources
- Marquis 19889 sources
- Marquis 19906 sources
- Marquis 19919 sources
- Marquis 199224 sources
- Marquis 199323 sources
- Marquis 199430 sources
- Marquis 199520 sources
- Marquis 199631 sources
- Marquis 199753 sources
- Marquis 199829 sources
- Marquis 199924 sources
- Marquis 200023 sources
- Marquis 200126 sources
- Marquis 200211 sources
- Marquis 200333 sources
- Marquis 200412 sources
Questions and answers
What are the most common problems with the 1989 Mercury Marquis?
Owner complaints to NHTSA most often mention: electrical system, service brakes, air bags. Total complaints: 10. The most frequent symptoms in complaint texts: smoke, burning smell, fire (50%), loss of power / limp mode (10%), steering or power steering problems (10%).
How many service bulletins (TSB) were issued for the 1989 Mercury Marquis?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 1989 Mercury Marquis from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 1989 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.