Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Electrical System Problems

2008 Mercury Mountaineer (Page 1 of 2)


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
48,084 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.

2008 Mercury Mountaineer electrical problems

electrical problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2008 Mercury Mountaineer:

Unsubscribe any time. We don't sell/share your email.

2008 Mercury Mountaineer Owner Comments (Page 1 of 2)

problem #25

Apr 122016


  • miles


The contact owns a 2008 Mercury Mountaineer. The contact stated that the key failed to start the vehicle numerous times. In addition, the driver's seat moved out of position while the vehicle was in motion. The vehicle was taken to the dealer more than once, but the failure was unable to be diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was not available.

- Newark, NJ, USA

problem #24

Jul 052016


  • 20 miles
Easy entry/exit feature. This feature will enable while driving my vehicle. This makes for a dangerous situation because I am not able to reach my gas and brake pedal. There is no specific pattern.

- Pottsville, PA, USA

problem #23

May 112016


  • 105,000 miles
While driving, the drivers power seat will move to the "open door position" causing my feet to be too far from the pedals. This is extremely dangerous. I have seen many reports regarding this issue.

- Washington Township, MI, USA

problem #22

Feb 262016


  • 80,000 miles


Defective ignition. When driving, if you bump the key (or attached keychain), all interior lights will come on, and the drivers seat will retract all the way back into the "easy entry/exit" position, making it impossible for a shorter person to reach the brake or gas pedal. Sometimes during this event, the car will stall. This is very dangerous, and the internet is full of people having this identical issue. Why hasn't this been recalled yet"!" people are paying for a new ignition tumbler, but before long it starts happening to the replacement tumbler as well.

- Stillwater, MN, USA

problem #21

Oct 102014

Mountaineer 8-cyl

  • 85,000 miles
While driving between 50 - 65 miles per hour the electric driver seat will move back into the open door park position and the inside lights will come on. Has happened multiple times since October 2014. There is no set pattern, it is completely random.

- Breckenridge, CO, USA

problem #20

Dec 062014

Mountaineer 6-cyl

  • 109,000 miles
I was driving my vehicle and a light came on that said check the charging system, the car's electrical system completely crashed and all the electrical power to the car died and it literally turned off while I was driving it in the middle of the street. Now even with a replaced battery and alternator it will only start with a jump and continues to say the charging system needs to be checked. This is extremely dangerous. What if I were driving on the highway and all of a sudden (with no reduction of speed) the vehicle just turned off and stopped. No electric meant no powersteering, no ABS, no air bag sensors etc... very dangerous. I have checked several blogs and sites and I am finding a number of people are having the same charging system issue. I would like to return the company to cover the cost of repairs for this vehicle.

- Auburn Hills, MI, USA

problem #19

Jul 292011

Mountaineer 6-cyl

  • 21,000 miles


The first time the following occurred was the first day I drove the vehicle. The dealership replaced the tumbler, but 1 1/2 years later it started again. While driving, I moved my foot from the accelerator to the brakes, and my knee brushed along the key fob dangling from the ignition switch. The seats then automatically retracted to the rear position. This happens on a daily basis, and seems to be extremely dangerous--particularly because it happens not only when moving my foot to the brake, but anytime. While I react quickly enough, I have children in my car at all times and if I was braking to avoid an accident, it would be impossible as I am only 5'5". since my warranty was only good for one year, it will now cost another $400 for a new tumbler, but I've never had a car where the tumbler is replaced every 1 1/2 years or ever for that matter. Am I supposed to wait for a fatal accident where either myself or my children are severely injured or killed?

- Mount Laurel, NJ, USA

problem #18

Sep 202014


  • 89,402 miles
While driving, I moved my foot from the accelerator to the brakes, and my knee brushed along the key fob dangling from the ignition switch. The seats then automatically retracted to the rear position. This has now happened four times, and seems to be extremely dangerous--particularly because it happens when moving my foot to the brake. While I reacted quickly enough in these normal incidents, if I was braking to avoid an accident, I doubt I'd be so lucky.

- Springfield, VA, USA

problem #17

Aug 032012

Mountaineer 8-cyl

  • 63,188 miles
Engine will not turn over. All electronics work. Keep turning ignition key on and off sometimes it will start in a few minutes other times it has to sit for a half hour or more. Dome light will come on for no reason. After reading others having same issues, I turned on easy access and slightly turned ignition key and sure enough the seat went back and dome light came on. This vehicle has been to a Ford dealer numerous times, once towed, and they can't seem to duplicate the problem. Thanks to this website I now have more information and hopefully will be able to get this on going issue fixed. The easy access is always turned off. The no crank no start is the big problem because I can't go anywhere for just a half hour and be confident it will start.

- South Bend, IN, USA

problem #16

Jan 132014

Mountaineer 6-cyl

  • 82,500 miles
I purchased this used vehicle which is in excellent shape and I love everything about it except the seat issue. After having the car for about a week the power seat started moving on its own. The interior lights will come on and the actual navigation/radio system and driving lights dim. I have looked online and this seems to be a constant problem and is basically the ignition area that needs to be replaced. I have almost been in a few accidents because of this and have 2 small children. My mother had to drive my car one day and she pulled over in complete fear because of almost wrecking. There has to be some type of recall to fix this problem. Every bump you hit this happens now. Multiple times in a 10 min drive. It is seriously dangerous. Please respond asap! thank you! [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Orwigsburg, PA, USA

problem #15

Jan 152013


  • 40,000 miles


While driving the vehicle, the seat suddenly went all the way back and the interior lights came on. After a moment, the seat went back to normal position and the lights went back out. This has happened several times since then, we finally figured out it was the ignition, with the car acting like the key just got put in the ignition or just pulled out, and the seat moving all the way back for easier ingress/egress and the courtesy lights coming on. Since I am only 5 foot 2 inches, when the seat moves back I can no longer reach the petals, a very dangerous situation while driving. I hope this gets fixed before somebody gets hurt, as I have a couple friends with Mountaineer, one is the same year, who have the same problem.

- Mesquite, TX, USA

problem #14

May 162014


  • 35,000 miles
The contact owns a 2008 Mercury Mountaineer. The contact stated that while driving 10 mph over a speed bump, the ignition switch malfunctioned and caused the seat to move in reverse. Additionally, the interior lights illuminated independently. The vehicle was taken to an independent mechanic where the technician diagnosed that the ignition switch needed to be replaced. The manufacturer was made aware. The failure mileage was 35,000 and the current mileage was 80,000.

- Hanford, CA, USA

problem #13

Apr 132010


  • 10,000 miles
The contact owns a 2008 Mercury Mountaineer. The contact stated that the front driver's seat moved back independently and the dome light illuminated. The vehicle was taken to a dealer where unknown repairs were performed. The manufacturer was not notified of the failure. The vehicle was repaired but the failure recurred. The approximate failure mileage was 10,000 and the current mileage was 38,000.

- Dix Hills , NY, USA

problem #12

Sep 242013

Mountaineer 6-cyl

  • miles
If I hit a bump or pothole while driving, the driver's seat moves to the easy exit position the dome lights come on. Happens also if you bump the steering wheel or if you touch the key when it is in the ignition. It has happens while backing out in drive. Stalled the engine twice. Turning the key slightly will put the seat back into the set position. I am only 5' 5", so when the seat goes back while I am driving, I am moved too far away from the steering wheel and the brake and gas pedals. Mechanic inspection indicates it is a problem with the ignition switch and has quoted it as a $203 repair.

- Castle Rock, CO, USA

problem #11

Jul 012013


  • 65,000 miles
The issue started out while we were driving; the seat would move to the easy exit feature and the dome lights would come on as though the key was removed from the ignition. It's now more frequent and happens when you put the key in the ignition. Turning the key slightly will put in back into the driving position. This is a serious driving hazard as you're moved very far away from the steering wheel as well as the brake and gas pedals. Sadly, it will take a deadly accident occurring for this to be considered a recall.

- Bethel Park, PA, USA

problem #10

Nov 212011


  • 29,000 miles
There is a recurring problem that the seat will automatically go into the "easy exit" position. This is not a problem for me as I drive with the seat as far back as possible, but this is a huge safety concern for my wife. Why hasn't this been recalled yet? this seems to be a common problem in this make and model. God forbid the electrical problem worsens and causes a fire.

- Staten Island, NY, USA

problem #9

Aug 252013


  • 65,000 miles
The contact owns a 2008 Mercury Mountaineer. The contact stated that the driver's side seat independently engaged into the easy exit position as the interior lights flashed on and off. The vehicle was taken to a mechanic where a diagnostic was performed, which located the failure at the ignition switch and the cylinder. The manufacturer was made aware of the failure. The VIN was not available. The vehicle was not repaired. The failure mileage was 65,000 and the current mileage was 66,000.

- Norht Easton , MA, USA

problem #8

Nov 262012


  • miles
While driving on highway drivers seat went forward independently without warning and seat went in the last memory position as far forward as possible position jamming drivers foot on gas pedal for an unspecified amount of time, and dome light came on. Driver could not get foot off gas pedal and could only get the seat to go back by manually using the seat buttons. Drivers seat was so far forward it was very difficult for driver to get hand between door and seat to get to button and driver was so frantic and scared trying to maintain vehicle control while attempting to get hand between seat and door to reach and find correct button to move seat back when there are 3 different seat buttons. Driver has disabled person that sets behind drivers seat so drivers seat upon disabled person entering vehicle is always put in the fartherest position forward to enable disabled person space to get in vehicle. Upon finally getting seat back driver has no recollection of any events occurring afterward because driver went into shock. Took vehicle to dealership to find problem shop manager got in attempting to duplicate problem instead the seat wouldn't even move as it's automatically programmed to do, then seat rocked back and forth, then went all the way forward. Dealership made two new ignition keys to replace the worn key, replaced computer memory cylinder in steering wheel where it was found if worn ignition key lost contact because of key being worn, with cylinder, seat had a mind of it's own. This resulted in a speeding ticket.

- Garden City, KS, USA

problem #7

Oct 102012

Mountaineer 6-cyl

  • 73,000 miles
Purchased a used 2008 Mercury Mountaineer almost a year ago, in approx Oct 2012 the driver's seat started moving back and forth while driving. When the seat moved back it was almost so far back I couldn't hold onto steering wheel or keep foot on brake pedal. Took vehicle to mccoy mills Ford and they could not duplicate occurrence. Since that date this has happened multiple times and I figured out it has something to do with the ignition switch. If the car gets any minor jolt as in riding on rough street or going over speed bump, ignition apparently shift which triggers something in the sensor and off you go. Most recent occurrence was on 12/11/2012 while driving through a local walmart parking lot; slowly went over speed bump and seat started moving on its own. Since the occurrences are becoming more frequent decided to take care back in now that I know it has something to do with ignition switch. Called Ford customer care center and spoke to a rep who stated they didn't have any recalls for such a matter and my bumper-to-bumper had expired so I would have to incur cost to repair. Went back to mccoy mills Ford was told that the keysense would need to be replaced and cost would be $390 - $400+. this should really be a recall item, especially after reading the number of postings on this site for the same thing.

- Santa Ana, CA, USA

problem #6

Jul 022012


  • 60,000 miles
Driver seat moves back to the "easy exit" position while driving! had to manually move the seat up with the side controls in order to reach the pedals again. Could not reach the brake! dealer replaced ignition key tumbler, same problem dealer replaced ignition electrical switch, solution pending. This should be a recall as it is a major safety issue!!!

- West Babylon, NY, USA

Read the next 5 complaints »

Not what you are looking for?