2005 Mercury Montego Power Train:automatic Transmission Problems

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

23Power Train:automatic Transmission complaints

17%Of all 135 complaints

#4Most-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

ELECTRICAL SYSTEM25 · 18.5%

POWER TRAIN25 · 18.5%

VEHICLE SPEED CONTROL24 · 17.8%

POWER TRAIN:AUTOMATIC TRANSMISSION23 · 17%

ENGINE10 · 7.4%

Share of the 135 complaints citing each category; one complaint can cite several. Full breakdown on the 2005 Mercury Montego overview page.

What owners report

“THE CONTACT OWNS A 2005 MERCURY MONTEGO. WHILE DRIVING APPROXIMATELY 25 MPH, THE VEHICLE BEGAN TO DECELERATE INDEPENDENTLY WITH AN INCREASE IN ENGINE RPMS TO…”NHTSA complaint 10407468 — filed 06/20/2011

“THE CONTACT OWNS A 2005 MERCURY MONTEGO. THE CONTACT STATED THAT THE VEHICLE BEGAN JERKING ABNORMALLY WHILE DRIVING 35 MPH. THE ENGINE WAS SHUT OFF…”NHTSA complaint 10405504 — filed 06/07/2011

“THE CONTACT OWNS A 2005 MERCURY MONTEGO. WHILE DRIVING APPROXIMATELY 60 MPH THE VEHICLE BEGAN TO JERK FORWARD AND DECELERATE WHILE DEPRESSING THE ACCELERATOR PEDAL…”NHTSA complaint 10401499 — filed 05/18/2011

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 2005 Mercury Montego have power train:automatic transmission problems?

Power Train:automatic Transmission is the #4 most-reported problem area on the 2005 Mercury Montego: 23 of 135 complaints on file (17%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2005 Mercury Montego have in total?

135 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 10 involved a crash, 2 involved a fire, 6 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.