hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
95,883 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.

2006 Mercury Mariner Hybrid electrical problems

electrical problem

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2006 Mercury Mariner Hybrid Owner Comments

problem #8

Jun 012016

Mariner Hybrid

  • 148,700 miles


After having a new water coolant pump (the fourth one in my Mariner hybrid) and a new throttle body being put into my car by a Ford dealership, my car is still having the same problems. Now a "service emission sys" warning has come on, and being under 150,000 miles still I contacted Ford to see what could be done since it was "fixed" by them but still has a problem related to the electrical hybrid powertrain, and Ford says there is nothing else that can be done, even though it clearly is under the warranty that they created due to the failures of both parts.

- Norfolk, VA, USA

problem #7

Jul 172013

Mariner Hybrid

  • 125,224 miles
My son was driving to his work as an emt. I allowed him to use my mariner. Traveling approx 65mph on the 5 freeway South in sunland, he heard the rod go and saw the lights on the dash indicate the engine overheating. He pulled off the 5 freeway and parked wear it was safe and called for help. I had aaa pickup the vehicle and bring it to the mechanic in westlake village ca. They indicated to me that the engine had thrown a rod and would need to be replaced. They thought it might have run out of oil or something else, but bottom line was that the engine was destroyed. They quoted me a price of $15,000 minimum to fix, so I had it towed to my driveway where it has remained since. It wasn't' for 10 months later we would get any indication that something else might have caused this to happen. I last serviced my mariner in March & may of 2013. My new concern putting 2+2 together, is that though the car was due for an oil change, could this catastrophic event have been due to the overheated coolant system that as yet hadn't been recalled? id like to see if any other Mercury/Ford customers experienced this.

- Agoura Hills, CA, USA

problem #6

Jan 262014

Mariner Hybrid

  • 55,480 miles
While attempting to exit a parking lot (driving at less than 5 mph and making a right turn to leave the parking spot), the steering became very hard to turn. Thinking that the engine had shut off, I restarted the engine then I noticed the message in the cluster "service power steering". I drove to the nearest repair shop a few blocks away and they confirmed that the power steering module is bad and will have to be replaced. They estimated repairs would cost about $1200 if they can find a used one. I was less than 5 miles away and continued on home. Parking this vehicle in nyc tight spots without the power steering is quite an undertaking. The wrench display in the cluster and the "service power steering" message has been consistent and has never disappeared once. I took it to my neighborhood Ford dealer a few weeks later and they confirmed that I will need "power steering rack and pinion, module and alignment with estimated repairs costing $3850 including taxes. This problem seems similar to those reported by the owners of the 2008 - 2011 Ford escape / Mercury mariner SUVS and identified in the recent Ford recalls for power steering issues.

- Brooklyn, NY, USA

problem #5

Apr 042009

Mariner Hybrid 4-cyl

  • 126,401 miles


In April 2014 my girlfriend was driving our 2006 Mercury mariner when it shut off while driving. Was told to reset computer which we did. The next day it shut off in an intersection. Luckily no accident but under no circumstances should the car computer shut the car off while driving!!!!!! was wiring harness for hybrid battery. The next month she was driving and lost all power steering while driving. Luckily no accident. Took it to dealer, told would need to replace entire steering column or sensor. Was sensor ($1129). Why is this year not covered by recall for this issue and 2008 on is"??" thank you.

- Macedon, NY, USA

problem #4

Oct 262012

Mariner Hybrid

  • 67,000 miles
Traveling on the highway, reached a speed of 65, " stop safely now " warning showed up on the electronic dash. Saw thousands of complaints about the same. Serious safety issue.

- Vista, CA, USA

problem #3

Mar 222012

Mariner Hybrid 4-cyl

  • 104,000 miles
Car would not move at all after coming to a stop when making a left turn in the middle of an busy intersection. With the car idling at 1000 rpms, it would not move when I pressed the accelerator. I had to shut the vehicle down completely, restart it, and then it would move forward only if I pressed the accelerator immediately after restarting. If traffic did not allow immediate travel, the car would not move forward as previously described. If you could not proceed immediately this cycle would continue multiple times. This has happened on over 30 separate occasions with this vehicle. This problem caused multiple safety risks from side or rear end collisions.

- Ortonville, MI, USA

problem #2

May 212012

Mariner Hybrid 4-cyl

  • 95,043 miles
On I-66W vehicle lost engine power at highway speed. Displayed stop safely now and master vehicle electrical hazard warning lamp. The incident was extremely harrowing for the driver as the power cutoff was unexpected and immediate. Coasted to shoulder. A restart, per the owner manual, was attempted but did not work. Transported on flatbed to Ford dealership. Dealership stated hybrid battery harness, hybrid cooling fans, and throttle body needed to be replaced and PCM reprogrammed for $1900 to ¿¿fix issue. Owner requested a new 12V front battery and warning ceased. Owner decided to do some research and test drive short distances. On 5/24 the engine cut off in an office parking lot. Vehicle was able to be restarted and go 4 miles back to residence after the carpet covering the hybrid battery was pulled up and the cabin A/C turned to high in an effort to cool the battery area (it did not feel hot but the owner believed if a temp reading was the cause a few degrees cooler might help). A wealth of info was found indicating this was a known problem and had multiple Ford technical service bulletins issued (09-18-6 Sep 09 hybrid systems - red triangle on/dtc P0A27 set¿). the owner compiled a list of 88 complaint numbers on the NHTSA site that indicate substantially similar experiences from 2005-2008 Ford escape hybrid / Mercury Mariner hybrid owners. Believe root cause is a design flaw in the PCM S/w that removes engine power when a minor deviation from the nominal battery temp range is sensed. Likely contributing issue is a poorly designed hybrid battery cooling system (battery harness, battery cooling fans, mec pump, blend door, relays). The NHTSA is urged to open an investigation into the stop safely now/master vehicle electrical hazard engine shutdowns. Vehicle is not repaired and can be made available for inspection.

- Potomac Falls, VA, USA

problem #1

Nov 232009

Mariner Hybrid

  • 45,213 miles
The driver information display showed: Brake system failure. Took vehicle to dealership, and was told that the item was not covered by extended warranty that I purchased through dealer. The item that was found to cause the code is the wiring that controls the hydraulic pump for the ABS brake system. Although the brakes still function, but do not protect from locking up in an event of emergency braking.

- Bayfield, CO, USA

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