"How reliable is the 2010 Mercury Mountaineer?"

"Based on 24 NHTSA complaints, the 2010 Mercury Mountaineer has a median complaint mileage of 38000 miles. The most common issue is Service Brakes."

"What are common problems with the 2010 Mercury Mountaineer?"

"The most frequently reported component in NHTSA complaints for the 2010 Mercury Mountaineer is Service Brakes, accounting for a significant portion of the 24 total complaints filed."

2010 Mercury Mountaineer: Reliability Data

Source: NHTSA — 24 complaints

Total Complaints

38,000mi

Median Mileage

Service Brakes

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

31,000 25th Percentile

38,000 Median Mileage

56,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Service Brakes

Vehicle Speed Control

Engine

Power Train

Steering

Fuel System, Gasoline

Structure

Seat Belts

Fuel/Propulsion System

Unknown Or Other

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"PULLED INTO PARKING SPACE, PLACED SHIFTER IN PARK, TURNED OFF IGNITION, RELEASED BRAKE AND VEHICLE ROLLED BACKWARDS AS IF NOT IN PARK. ATTEMPTED TO RESTART VEHICLE AND NO RESPONSE. SET PARKING BRAKE. COULD NOT GET VEHICLE TO LOCK INTO PARK, SHIFTER MOVED REGARDLESS OF BRAKE ON OR NOT AND WOULD NOT S..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Service Brakes 5 complaints

25th: 36,250 mi Median: 38,000 mi 75th: 38,165 mi

Vehicle Speed Control 4 complaints

25th: 23,500 mi Median: 34,500 mi 75th: 42,250 mi

Engine 3 complaints

Median: 55,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

VA: 5 FL: 3 NY: 3 IL: 3 MD: 3 WI: 3 CO: 2 AL: 1 NH: 1

Mercury Mountaineer — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1997	399	124,646	Tread/Belt	48
1998	298	79,500	Tires	29
1999	182	67,000	Tires	15
2000	164	81,000	Vehicle Speed Control	21
2001	32	40,000	Structure	3
2002	504	75,000	Automatic Transmission	19
2003	220	78,898	Body	8
2004	271	70,000	Body	20
2005	113	48,150	Body	9
2006	153	58,945	Automatic Transmission	9
2007	119	78,000	Seats	6
2008	156	65,000	Seats	4

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28