2010 Mercury Mariner Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/12/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 269 complaints citing each category; one complaint can cite several. Full breakdown on the 2010 Mercury Mariner overview page.
What owners report
“DRIVING TO WORK ON 1431, THE CAR FELT AS THOUGH IT HIT A BUMP, LOST ALL ABILITY TO DRIVE. PULLED OVER TO SIDE OF ROAD…”NHTSA complaint 10545509 — filed 09/26/2013
“9/8/2013 DRIVING 60MPH I FELT A SLIGHT JOLT AND NOTICE A YELLOW WRENCH LIGHT CAME ON DASHBOARD.THEN THE MERCURY MARINER DECELERATED AND STALLED TO WHERE…”NHTSA complaint 10542853 — filed 09/10/2013
“I WAS LEAVING A SOCCER GAME AND THE CAR WENT TO ABOUT 40 MPS AND THE WRENCH LIGHT CAME ON AND THE PEDAL WENT LIMP…”NHTSA complaint 10538244 — filed 08/31/2013
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2010 Mercury Mariner have transmission & power train problems?
Power Train is the #4 most-reported problem area on the 2010 Mercury Mariner: 57 of 269 complaints on file (21.2%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2010 Mercury Mariner have in total?
269 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 2 involved a crash, 2 involved a fire, 6 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
