Your vehicle report
1991 Mercury Grand Marquis
The problems owners report. The recalls to check. The evidence behind each.
Your vehicle at a glance
Complaint patterns and official recall records, kept distinct.
- Owner complaints
- 82
- Received Jan 1995 to Jul 2018
Owner reports
Most reported problems
- 1Vehicle catches fire from wiring17 complaints · 21% of this vehicle’s complaints
- 2Airbags fail to deploy in crashes7 complaints · 8.5% of this vehicle’s complaints
- 3Unintended acceleration despite braking6 complaints · 7.3% of this vehicle’s complaints
Official NHTSA records
Recalls to check
- Recall #91V048000The park rod assembly contains a park cam with inadequate surface hardness, which could lead to park disengagement or no park engagement when the lever is placed in park.
BrakeNews signals
Flagged complaint patterns
Unusual complaint patterns with no matched recall yet. A flag does not mean a recall will happen.
No problems currently meet BrakeNews’s flagging criteria. This is not a safety rating.
How flags are identifiedComplaint counts reflect reports submitted to NHTSA, not failure rates or a reliability ranking. Reported in these complaints: 12 crashes, 14 fires, 13 people injured, 0 deaths.
Explore by system
Where do owners report problems?
Choose an area on the car or a system below to explore the reported problems.
Illustrative only; not this vehicle’s exact design. Areas represent complaint categories, not confirmed defective parts.
Showing all 8 listed problems by system.
Engine & powertrain
- Unintended acceleration despite braking
- Engine suddenly shuts off while driving
- Vehicle rolls backward out of park
1 more problem
Brakes
Electrical & lights
Airbags, belts & seats
Steering, suspension & tires
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Body, doors & glass
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Driver assistance
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Other
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Complaint history
When NHTSA received these reports. Changes in reporting alone do not establish a change in failure rates.
Show as a table
| Year | Complaints |
|---|---|
| 1995 | 15 |
| 1996 | 13 |
| 1997 | 16 |
| 1998 | 8 |
| 1999 | 14 |
| 2000 | 6 |
| 2001 | 5 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 0 |
| 2006 | 0 |
| 2007 | 0 |
| 2008 | 0 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 1 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 (to Oct 2026) | 0 |
| Total | 82 |
Problems owners report
Listed groups have at least 3 complaints. The page includes the 20 largest groups plus any additional flagged groups; some complaints are not assigned to a group.
| Problem | Complaints | Share | Share ratio | Status |
|---|---|---|---|---|
| Vehicle catches fire from wiring | 17 | 21% | – | |
| Airbags fail to deploy in crashes | 7 | 8.5% | – | |
| Unintended acceleration despite braking | 6 | 7.3% | – | |
| Front brake rotors warp and wear early | 5 | 6.1% | – | |
| Engine suddenly shuts off while driving | 4 | 4.9% | – | |
| Vehicle rolls backward out of park | 4 | 4.9% | – | |
| Transmission fails or loses power while driving | 4 | 4.9% | – | |
| Airbag warning light stays on | 3 | 3.7% | – |
AI groups complaints by meaning; the groups are approximate. Share ratio compares the problem’s share of this vehicle’s complaints with its share on other vehicles over the last 24 months (shown from 3 recent complaints). A 2× ratio means twice the complaint share, not twice the failure risk. Flags mark unusual shares or recent surges after an AI review of the complaint content. “First signal” does not mean the pattern has persisted continuously.How recall estimates are calculated.
Recalls
NHTSA recall #91V048000March 18, 19916,800 vehicles affected
power train: automatic transmission
The park rod assembly contains a park cam with inadequate surface hardness, which could lead to park disengagement or no park engagement when the lever is placed in park.
If park is not engaged and the parking brake is off, avehicle roll-away could result.
Remedy
Replace park rod assembly on automatic transmissions.
Other model years
About this data
NHTSA complaints and recalls through October 2026. Complaints are counted once each, however many components they name. Original complaints are on NHTSA's page for the 1991 Mercury Grand Marquis.
Problem groups are formed by AI and may be approximate. BrakeNews flags unusual complaint patterns; they are not official defect findings. Investigation reports are written and checked by AI, with no human review. Owner reports do not establish that a defect exists.
Read the methodology and track record · Check current recalls by VIN