2002 Mercury Mountaineer Power Train:automatic Transmission Problems

NHTSA component category: POWER TRAIN:AUTOMATIC TRANSMISSION · data through 07/14/2026

89Power Train:automatic Transmission complaints

23.9%Of all 372 complaints

#1Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How power train:automatic transmission ranks on this vehicle

POWER TRAIN:AUTOMATIC TRANSMISSION89 · 23.9%

POWER TRAIN38 · 10.2%

STRUCTURE:BODY:HATCHBACK/LIFTGATE:HINGE AND ATTACHMENTS23 · 6.2%

STEERING15 · 4%

ENGINE AND ENGINE COOLING15 · 4%

Share of the 372 complaints citing each category; one complaint can cite several. Full breakdown on the 2002 Mercury Mountaineer overview page.

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

“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

“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

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Power Train:automatic Transmission complaints by year filed

Frequently asked questions

Does the 2002 Mercury Mountaineer have power train:automatic transmission problems?

Power Train:automatic Transmission is the most-reported problem area on the 2002 Mercury Mountaineer: 89 of 372 complaints on file (23.9%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2002 Mercury Mountaineer have in total?

372 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 17 involved a crash, 7 involved a fire, 38 reported injuries, and none reported deaths.

What does NHTSA's power train:automatic transmission category include?

NHTSA assigns each complaint to standard component categories; this page reports the POWER TRAIN:AUTOMATIC TRANSMISSION category exactly as NHTSA defines and records it.

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.