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Transmission and drivetrainPart report

2010 Mercury Mariner Transmission and drivetrain Problems

Complaints
60about this part
Share
22%of 270 total for the year
Median mileage
52,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 60 complaints about the transmission and drivetrain of the 2010 Mercury Mariner, 22% of the 270 complaints for this model year. Where a mileage was given, the median is 52,000 miles. 1 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I was driving my 2010 Mercury Mariner , when the engine lite came on with a little wrench lite. My car started to lose power and I could not get it to pick up power. I pulled of the road. I turned off my car, I didn't know if it would start again .very scary.I have only 86000 mile on it .”

NHTSA complaint #11030677, filed 2017-09, 86,000 miles

“Coming to a stop at a red stop light and then trying to accelerate from red to green light at an intersection my vehicle went into limp mode, it lost power. It would not accelerate pass 10mph. An engine light came on as a orange wrench light. I drove as I could and made to auto zone. They plug in the hand held car computer and it gave the code p2119. Which stands for throttle body.”

NHTSA complaint #10640939, filed 2014-10, 30,000 miles

“Vehicle surged slightly for a few seconds then accelerator would not work. Wrench light came on. Had to pull over to side of the road, shut vehicle off, restart and it then worked the 10 remaining miles to home. I had just read about this happening a cpl days previous so I knew what it was immediately.”

NHTSA complaint #10588261, filed 2014-05, 69,000 miles

“While driving approx. 45 MPH the wrench-shaped warning light came on and I lost propulsion...engine still running, radio, A/C still operating but 0 rpms. I coasted to a stop on a side road and called a tow truck. Mechanic tells me it is a failed throttle body and will be pretty expensive to replace.”

NHTSA complaint #10551883, filed 2013-11, 42,000 miles

“I was driving on the interstate when my gas pedal completely stopped working. The only indicator was the wrench light that came on at the same time the gas pedal stopping functioning. I almost had an accident trying to make my way to a shoulder with no way to accelerate during rush hour traffic. After being at the dealership, it was determined that the throttle body was bad and had to be replaced costing $500.00.”

NHTSA complaint #10520378, filed 2013-06, 78,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
20112428%
20106022%
20094414%
20086614%
20071133%
20061117%
20051522%

Other parts of the 2010 Mercury Mariner

Vehicle speed control
66 complaintsFuel system
63 complaintsEngine
61 complaintsSteering
61 complaintsElectrical system
29 complaintsOther or unknown
11 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsBody and structure
7 complaintsElectronic stability control
6 complaintsBrakes
5 complaintsAir bags
4 complaintsExterior lighting
4 complaints

← All problems reported for the 2010 Mercury Mariner

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology