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Exterior lightingPart report

2010 Mercury Mariner Exterior lighting Problems

Complaints
4about this part
Share
1%of 270 total for the year
Median mileage
33,900miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the exterior lighting of the 2010 Mercury Mariner, 1% of the 270 complaints for this model year. Where a mileage was given, the median is 33,900 miles. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“Power steering suddenly stopped working while I was driving. The vehicle is extremely difficult to navigate but I was able to pull off the road to a safe area. After shutting the car off for 15 minutes and restarting the lack of power steering remained, but there was now a message saying power steering assist fault . This car has several other electrical problems with regard to the A/C & blower, and also the drivers side window and dome lights work sporadically.”

NHTSA complaint #11143853, filed 2018-10, 120,000 miles

“Returning home from work, wife in front of me. Center high stop light had some bad bulbs. Removed assembly, found melted reflector and broken bulbs. Took many photos. Informed local dealership by email. Told them u/w. Part arrived 1 week later, picked up on saturday morning, had to pay $90.41. I badgered dealership for reimbursement, finally got check at end of december. Still have pics and part.”

NHTSA complaint #10557426, filed 2013-12, 32,000 miles

“I purchased my 2010 Mariner 03/26/2013 from a local dealership. While driving at around 35 - 40 MPH I noticed a grinding sound and difficulty to increase speed. I then noticed that my left blinker was flashing at a faster speed and the tail light went out. That was replaced. The car then would sporadically go dead and would have to be jumped. I had 3 different service shops look at the vehicle and found no issues. I did replace the battery and it appeared to run fine for about 3 - 4 days. It is now sporadically dead and the local dealership will look into the issue on 8/7/2013. …”

NHTSA complaint #10533848, filed 2013-08, 35,800 miles

Exterior lighting: other model years

YearComplaintsShare of year
201041%
200921%
200810%
200612%
200523%

Other parts of the 2010 Mercury Mariner

Vehicle speed control
66 complaints
Fuel system
63 complaints
Engine
61 complaints
Steering
61 complaints
Transmission and drivetrain
60 complaints
Electrical system
29 complaints
Other or unknown
11 complaints
Visibility (wipers, defrost, mirrors)
8 complaints
Body and structure
7 complaints
Electronic stability control
6 complaints
Brakes
5 complaints
Air bags
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