Your vehicle report
2004 Mercury Mountaineer
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
- 210
- Received Jan 2004 to Jun 2021
Owner reports
Most reported problems
- 1Tailgate or trunk latch fails22 complaints · 10% of this vehicle’s complaints
- 2Glass shatters or cracks without impact18 complaints · 8.6% of this vehicle’s complaints
- 3Automatic transmission shifts unexpectedly or slips13 complaints · 6.2% of this vehicle’s complaints
Official NHTSA records
Recalls to check
No recalls naming this model year are listed in this data. This does not establish that your vehicle is free of safety problems.
View recall detailsBrakeNews 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: 11 crashes, 2 fires, 16 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 17 listed problems by system.
Engine & powertrain
Brakes
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Electrical & lights
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Airbags, belts & seats
Steering, suspension & tires
Body, doors & glass
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 |
|---|---|
| 2004 | 12 |
| 2005 | 11 |
| 2006 | 6 |
| 2007 | 16 |
| 2008 | 27 |
| 2009 | 20 |
| 2010 | 24 |
| 2011 | 23 |
| 2012 | 10 |
| 2013 | 18 |
| 2014 | 23 |
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 0 |
| 2021 | 1 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 (to Oct 2026) | 0 |
| Total | 210 |
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 |
|---|---|---|---|---|
| Tailgate or trunk latch fails | 22 | 10% | – | |
| Glass shatters or cracks without impact | 18 | 8.6% | – | |
| Automatic transmission shifts unexpectedly or slips | 13 | 6.2% | – | |
| Transmission fails or loses power while driving | 13 | 6.2% | – | |
| Rear door latch fails to open or close | 10 | 4.8% | – | |
| Engine suddenly shuts off while driving | 8 | 3.8% | – | |
| Power window regulator fails and window drops | 7 | 3.3% | – | |
| Airbags fail to deploy in crashes | 7 | 3.3% | – | |
| Dashboard cracks near passenger airbag | 6 | 2.9% | – | |
| Frame rusts and corrodes through | 6 | 2.9% | – | |
| Cruise control fails to disengage | 6 | 2.9% | – | |
| Suspension clunking or rattling noise over bumps | 5 | 2.4% | – | |
| Transmission will not engage reverse gear | 5 | 2.4% | – | |
| Steering wheel seizes or locks suddenly | 4 | 1.9% | – | |
| Chevrolet Silverado loses power and hesitates | 4 | 1.9% | – | |
| Wheel bearings fail prematurely | 4 | 1.9% | – | |
| Unintended acceleration despite braking | 3 | 1.4% | – |
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
No safety recalls naming the 2004 Mercury Mountaineer are listed in the data through October 2026. Check your VIN with NHTSA for current information; an empty list is not a safety assessment.
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 2004 Mercury Mountaineer.
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