2010 Mercury Mountaineer problems and complaints
Owners have filed 13 complaints with NHTSA about the 2010 Mercury Mountaineer. The most-reported areas: Service Brakes (5), Vehicle Speed Control (4), Engine (3).
Key takeaways
- 13 owner complaints on file with NHTSA.
- 0 involve a crash, 0 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Service Brakes | 5 | 38% |
| Vehicle Speed Control | 4 | 31% |
| Engine | 3 | 23% |
| Power Train | 2 | 15% |
| Steering | 2 | 15% |
| Electrical System | 1 | 8% |
| Seats | 1 | 8% |
| Interior Lighting | 1 | 8% |
| Unknown Or Other | 1 | 8% |
| Fuel/Propulsion System | 1 | 8% |
| Seat Belts | 1 | 8% |
| Structure | 1 | 8% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2010 Mercury Mountaineer 4-DR. w/SAB | Not rated | Not rated | Not rated | 3/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Electrical System - filed 2022-06-07
The contact owns a 2010 Mercury Mountaineer. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the computer had provided an incorrect error code. The vehicle was also diagnosed by an authorized Ford tec...
Seats,interior Lighting,service Brakes - filed 2019-12-31
TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. WHILE THE CONTACT'S WIFE WAS DRIVING 70 MPH, SHE DEPRESSED THE BRAKE PEDAL AND THE FRONT DRIVER'S SEAT STARTED TO SLIDE BACKWARDS AND THE INTERIOR LIGHTING ILLUMINATED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE DRIVER LOST CONTROL OF THE VEHICLE AS IT MADE A 360 ...
Unknown Or Other - filed 2019-12-08
DOORS LOCKING MECHANISM MALFUNCTIONING AND CODING NUMBERS NOT FUNCTIONING. BEING LOCKED OUT WHEN USING CODE #S. CHAIN CRANKIN HARSHLY BUT NOT UNLOCKING DOORS. WHEN USING KEY INSTEAD OF CODE KEY DOES NOT UNLOCK NOR LOCK ANY DOORS EXCEPT DRIVERS DOOR LOCK.
Diagnose it yourself
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
More for the 2010 Mercury Mountaineer
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.