Built from official NHTSA complaint and recall data · data through 07/14/2026
High complaint levelIts most-reported problem — Power Train:automatic Transmission — runs 4.0× the fleet median for that category across the 2391 model-years tracked on this site.
372Complaints
4Recalls
17Crashes
7Fires
38Injured
0Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Power Train:automatic Transmission (23.9% of complaints) — was examined in a now-closed NHTSA investigation that did not result in a recall.
Power Train:automatic Transmission complaints here are 4.0× the median for that category across the 2391 model-years tracked on this site.
None of the 6 most-reported categories on this page have a recall or open investigation on file — they rest on unverified owner reports alone.
Complaint category
Reports
Official status
Reference
Power Train:automatic Transmission
89 · 23.9%
Investigation closed
EA09013
Power Train
38 · 10.2%
Investigation closed
EA09013
Structure:body:hatchback/liftgate:hinge And Attachments
23 · 6.2%
Investigation closed
PE04045 → recall 04V442000
Steering
15 · 4%
Investigation closed
EA09013
Engine And Engine Cooling
15 · 4%
Investigation closed
DP05005
Suspension:rear
15 · 4%
No official action
—
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 372 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
ROTATION OF THE BRACKETS COULD POTENTIALLY CAUSE THE LIFT CYLINDERS TO DETACH FROM THE GLASS OR, IN SOME CASES, COULD POTENTIALLY CAUSE THE LIFTGATE GLASS TO BREAK. EITHER CONDITION IS MOST LIKELY TO OCCUR WHEN THE GLASS IS BEING CLOSED. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
OVER TIME, THE TIRE COULD FAIL, INCREASING THE RISK OF A CRASH. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“DT: ABOUT TWO YEARS AGO OWNER PURCHASED THE VEHICLE 2002 MERCURY MOUNTAINEER. RIGHT AWAY OWNER COMPLAINED OF ACCELERATION PROBLEM. WHILE DRIVING ON THE ROAD VEHICLE…”NHTSA complaint 10128756 — filed 07/14/2005 · POWER TRAIN:AUTOMATIC TRANSMISSION
“I HAVE A 2002 MERCURY MOUNTAINEER THAT THE TRANSMISSION NEEDS TO BE RELACED. THERE WAS NOTHING WRONG WITH THE TRANSMISSION OPERATIONALY. THE DASHBOARD LIGHT O/D…”NHTSA complaint 10126749 — filed 06/27/2005 · POWER TRAIN:AUTOMATIC TRANSMISSION
“TRANSMISSION SHIFTING ERRATICALLY ON UP-SHIFT, 2-3 / 3-4 AND 4-5. 5/16/05 MILEAGE 55K. THE VEHICLE WAS BROUGHT TO THE DEALER, ISSUE EXPLAINED AND FIXED ON…”NHTSA complaint 10121653 — filed 05/20/2005 · POWER TRAIN:AUTOMATIC TRANSMISSION
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2002 Mercury Mountaineer?
Power train:automatic transmission issues are the most-reported category, cited in 89 of 372 NHTSA complaints (23.9%), followed by power train (38), structure:body:hatchback/liftgate:hinge and attachments (23), steering (15). Complaints are unverified owner reports.
How many complaints does the 2002 Mercury Mountaineer have?
372 complaints were on file with NHTSA as of 07/14/2026. Of those, 17 involved a crash, 7 involved a fire, and 38 reported injuries. No deaths were reported.
Does the 2002 Mercury Mountaineer have any recalls?
Yes — 4 NHTSA safety recall campaigns, including campaign 07E104000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2002 Mercury Mountaineer's reported problems?
0 of the 6 most-reported complaint categories on this page are backed by an NHTSA safety recall or open investigation; the rest are unverified owner reports. A recall means a free repair is available at authorized dealers.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.
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