2007 Mercury Mountaineer problems and complaints

Owners have filed 81 complaints with NHTSA about the 2007 Mercury Mountaineer. The most-reported areas: Seats (26), Power Train (25), Electrical System (16).

Key takeaways

  • 81 owner complaints on file with NHTSA.
  • 3 involve a crash, 0 a fire, 1 reported injury.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Seats2632%
Power Train2531%
Electrical System1620%
Vehicle Speed Control79%
Unknown Or Other67%
Engine56%
Steering56%
Structure56%
Engine And Engine Cooling45%
Seat Belts34%
Wheels34%
Tires22%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2007 Mercury Mountaineer 4-DR. w/SABNot ratedNot ratedNot rated3/5

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Power Train - filed 2025-06-18

The contact owns a 2007 Mercury Mountaineer. The contact stated that after shifting the transmission from park(P) to reverse(R), the vehicle failed to respond. The contact removed and reinserted the fob key in the ignition to correct the failure. The vehicle was taken to an independent mechanic, who diagnosed that an u...

Seat Belts - filed 2025-05-14

I buckle the seat belt and it just comes unbuckled spontaneously when I’m driving. I check to see if the seat belt is secure by pulling on it. It seems secure but still unbuckles. I usually have to redo my seatbelt every 5 minutes. I do not feel like it will keep me safe in a collision

Tires - filed 2024-05-03

My husband had purchased 4 brand new COOPER TIRES EVOLUTION H/T M+S size P235 / 65 R 18 a number of years ago. My husband has since passed away. I cannot find my sales receipt due to the fact my husband had paid for the tires in question. I do not know what he did with the sales receipt. I have a few good-faith effo...

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More for the 2007 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.