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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
112,429 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mercury Mountaineer seat belts / air bags problems

seat belts / air bags problem

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2004 Mercury Mountaineer Owner Comments

problem #7

May 052015

Mountaineer 6-cyl

  • 160,000 miles


I was driving down the street and all of a sudden my side airbags deployed. I did not hit a pot hole, there was no accident, they went off by themselves.

- Whitman, MA, USA

problem #6

Dec 222014

Mountaineer 8-cyl

  • 164,000 miles
Driving at apprx 50 mph when suddenly both the driver side and passenger side air curtains deployed!! there was no accident. No impact from objects. No pot holes or road hazards. No warnings just a loud bang and the next thing I knew I was hit in the head by an airbag!! I had no idea what happened. I thought I was struck or shot at first! I was fortunate to keep the car under my control as I was on a two lane surface street in morning traffic. I am currently in contact with Ford to attempt resolution for the defect. In researching online I have found that this has happened multiple times with the same model and year vehicle. This sounds like a safety recall should be considered. I will attempt to update my complaint as I continue my talk to try and gain resolution with Ford.

- Hartland, MI, USA

problem #5

Dec 112013

Mountaineer 8-cyl

  • 107,000 miles
The contact owns a 2004 Mercury Mountaineer. The contact stated that while driving 60 mph, the driver and passenger's side curtain air bags deployed erroneously. The contact sustained injuries to the back as a result. A police report was filed. The vehicle was towed to a dealer where the technician diagnosed that the air bags needed to be replaced and reset. In addition, the liner around the windows and the safety control module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the problem. The approximate failure was 107,000....updated 03/07/14

- Arvada, CO, USA

problem #4

Jul 062013

Mountaineer 6-cyl

  • 130,000 miles


After reversing approximately 6 ft in my driveway I put the vehicle in drive and before taking my foot off of the brake the passenger side airbag deployed in the front seat where my 14 year old was sitting. No accident, no potholes, not even moving, no reason at all the airbag deployed.

- Nahunta, GA, USA

problem #3

Feb 082010

Mountaineer 6-cyl

  • 103,000 miles
My 2004 Mercury Mountaineer accelerated on it's own as I was pulling into a parking space. The vehicle made a roaring sound. My foot never left the brake pedal and I could not stop it. I jumped the curb, went over a grassy area, over the sidewalk and did not stop until I hit a concrete building at approximately 25-30 miles per hour. It caused significant damage to the building and to the car. Airbag did not deploy. I have had the body damage repaired and my auto insurance has paid over $3,000 for that. My husband took it to our nearest Ford dealer where they ran a diagnostic and it showed an electronic malfunction. They said the throttle body assembly needs replacing. The technician did not give us a print-out and said he couldn't find it when we checked back later. We contacted Ford Motor Company to see if they would pay for the replacement because our insurance would not. They also will not pay for it, but sent us to another Ford dealer to run a diagnostic on the airbags. After explaining my ordeal to the technician, he agreed to also check the throttle body. He said their diagnostic test shows no problems with the airbag or the throttle body! he also stated that the first dealer could have wiped it from the memory of the computer. After my husband spoke with a customer service rep at Ford Motor Company today, she said she would request that the dealer who ran the first diagnostic test send us a copy of the print-out that he couldn't find for us. The car is going back into the shop tomorrow at a local private mechanic (not a Ford dealer technician) and we will take it from there. As of today, nothing has been repaired other than the body damage.

- New Tazewell, TN, USA

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problem #2

Dec 012008

Mountaineer 8-cyl

  • Automatic transmission
  • 67,000 miles
The contact owns a 2004 Mercury Mountaineer. While idling at a stop light, the air bags deployed without any prior warnings. An inspector from the insurance Agency concluded that the failure was caused by a manufactures defect. The manufacturer was notified, and a representative requested the control restraint module from the dealer to investigate the failure. No repairs were made. She was awaiting a response from the manufacturer. The failure mileage was 60,000. Updated 11/13/09. The front and rear air bags deployed. Updated 11/16/09

- Juliustown, NJ, USA

problem #1

Dec 082007


  • 56,000 miles
My 2004 Mercury Mountaineer has a crack in the lift gate that appeared a year after I brought it from the dealership. At first I thought it was something I might have done but every one I ran across has the same identical crack in the same area. People I spoke with said it just showed up one day. Is there a recall on this defect?

- Chesapeake, VA, USA

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