The contact owns a 2010 Mercury Mariner. The contact stated that while driving approximately 20 MPH, an alarm sounded, and the steering wheel locked up. The message "Power Steering Assist Fault" was displayed. The contact was able to drive to the residence nearby. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was previously repaired under recall. The failure mileage was approximately 190,000.
2010 Mercury Mariner steering problems
61 complaints (23% of all complaints for this car). Typical mileage when it fails: 110,000. 1 crash reported.
- owner complaints
- 61
- of this car's complaints
- 23%
- typical mileage
- 110,000
- crashes
- 1
- recalls
- 1
Which part fails
- Column1
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Mercury Mariner steering problems in other years
Specific symptoms reported on the 2010 Mercury Mariner steering
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
Steering: electric power assist system
- What is wrong
- Ford Motor Company (Ford) is recalling certain model year 2008-2011 Ford Escape and Mercury Mariner vehicles manufactured August 18, 2006, through September 11, 2010. The affected vehicles have a steering torque sensor that may not be able to properly detect driver steering input. As a result, the system could remove the Electric Power Steering (EPS) assist.
- Risk
- If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash.
- Remedy
- Ford will notify owners, and dealers will update the software for the power steering control module (PSCM) and the instrument cluster module, free of charge. If a vehicle shows a history of a loss of the torque sensor signal or fault codes relating to the PSCM when the vehicle is brought in for the recall remedy, the affected components will be replaced, free of charge. The recall began on July 18, 2014. Owners may contact Ford customer service at 1‑800‑392‑3673. Ford's number for this recall is 14S05.
Recall number 14V284000 · Recall details
Related investigations
Loss of power steering while driving
On May 27, 2014, amended June 2, 2014, Ford Motor Company (Ford) submitted a Defect Information Report (DIR) to the federal safety agency describing a safety defect that may result in a sudden loss of power steering assist while driving in approximately 746,067 model year (MY) 2008 through 2011 Ford Escape vehicles equipped with electric power assisted steering (the federal safety agency 14V‑284, Ford 14S05). Ford's DIR described the defect condition as a poor signal to noise ratio [SNR] in the torque sensor within the Electric Power Assisted Steering (EPAS) system [which] does not allow the PSCM to determine the driver's steering input. When the system detects this fault condition, it transitions the EPAS system to the fail-safe/manual steering mode.Ford's DIR indicates that loss of power steering assist while driving would require higher steering effort at lower vehicle speeds, which may result in an increased risk of a crash.Ford's remedy instructs dealers to check the Power Steering Control Module (PSCM) for Diagnostic Trouble Codes (DTCs) to determine the proper repair procedure. If no DTCs are present, dealers are to update the PSCM and instrument cluster module software. The updated PSCM software changes the torque sensor fault strategy so that the SNR condition does not result in a loss of power steering assist while driving.In addition, audible and visual warnings are provided for torque sensor faults.If DTCs indicating faults in the torque sensor, PSCM or Power Steering Motor (motor) are present in the initial recall inspection, the dealer performs the following repairs: 1) replaces the torque sensor for torque sensor faults (DTC B2278); or 2) replaces the steering column for faults related to the PSCM (DTC B1342) or motor (DTC B2277).Continued in attachment pages
DP15001
What 2010 Mercury Mariner owners say
Most recent owner complaints, unedited.
The contact owns a 2010 Mercury Mariner. The contact stated that after starting the vehicle, the message "Power Steering Assist Failure" was displayed, and the steering wheel became extremely difficult to turn in either direction. The local dealer and manufacturer were notified of the failure, but no assistance was provided. The contact was informed that the vehicle was previously repaired under the federal safety agency Campaign Number: 14V284000 (Steering), which the contact related to the failure. The cause of the failure was not yet determined. The failure mileage was 185,000.
Power Steering assist fault went out with no warning. Now steering wheel is locking up while driving. Also when trying to gain speed the vehicle bogs out.
The power steering assist is malfunctioning and it is available for inspection upon request. The steering wheel is very difficult to turn, it's as if the power steering assist is keeping the wheel from turning. No, but I spoke to someone at Ford and they said that it sounded like my car should be in the recall that was announced for my vehicle type but my VIN was not included in the recall. My car has not been inspected by anyone but it says right on the dash board digital display that there is a "Power Steering Assist Fault". Ford does this with many vehicles they recall, a lot of vehicles that should be included in the recalls are not and we're supposed to foot the bill for their lack of concern for public safety? It's going to cause an accident but it's my only working car and I can't afford to pay for their mistakes. How many have died due to their negligence I'm wondering.
The contact owns a 2010 Mercury Mariner. The contact stated that while driving at approximately 5 MPH and attempting to park the vehicle, the power steering became inoperable. The power steering failure message was displayed. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the federal safety agency Hotline. The contact stated that the failure was related to the federal safety agency Campaign Number: 14V284000 (Steering). The failure mileage was unknown.
The contact owns a 2010 Mercury Mariner. The contact stated while attempting to pull out of a parking space, she became aware that the electronic power steering was not functioning properly. The EPS warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 14V284000 (Steering) however, the VIN was not included. The manufacturer was notified of the failure but referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 65,000.
I recently purchase 2010 Mercury Mariner. There is a few errors appearing on the screen in front of the steering wheel. One of the error is "CHECK FUEL LINES." It also has an error about the tire pressure sensor. It also rides roughly, but the wheels are like new, so it feels like the suspension or shocks have something wrong with them. Also, there is a lot of play in the steering wheel when driving it. When I went to check on the recalls in the system by putting in my VIN, it shows that there are no recalls on my vehicle. However, these errors and issues are connected to the recalls for my vehicle. I am sure that these recalls have not been taken care of for this vehicle and they need to be fixed.
The contact owns a 2010 Mercury Mariner. The contact stated that the power steering fault warning light was illuminated. The power steering assist had failed which made the vehicle difficult to steer. The contact stated that the power steering fuse lines were replaced; however, the failure persisted. The dealer was contacted, and the contact was informed that the VIN was not included in the federal safety agency Campaign Number: 14V284000 (Steering). The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 125,000.
The contact's mother owns a 2010 Mercury Mariner. The contact stated while her mother was driving 45 mph, the steering wheel became difficult to turn. The driver stated the tire pressure and the power steering warning lights were illuminated. The driver was able to park the vehicle on side of the road. The owner took the vehicle to the independent mechanic and associated the failure with the federal safety agency Campaign Number:Â 14V284000 (Steering), however, the VIN was not included. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was approximately 115,437
The contact owns a 2010 Mercury Mariner. The contact stated that upon starting the vehicle, the power steering assist fault message flashed on the instrument panel. The contact then stated that excessive force was needed to steer the vehicle. Upon investigation, the contact discovered the federal safety agency Campaign Number:14V284000 (Steering). The contact called the dealer and was informed that the vehicle was not under recall. The manufacturer was notified of the failure and provided the contact with a case number. The vehicle was not repaired. The failure mileage was approximately 121,000.
Questions about the 2010 Mercury Mariner steering
Does the 2010 Mercury Mariner have steering problems?
Owners have filed 61 complaints about the steering of the 2010 Mercury Mariner, 23% of all its complaints.
At what mileage do 2010 Mercury Mariner steering problems start?
The typical (median) mileage in owner complaints is 110,000 miles.
Was there a recall on the 2010 Mercury Mariner steering?
Yes, 1 recall: 14V284000. Check your VIN to see if your car still needs the free repair.
What year does the Mercury Mariner have bad steering?
The Mercury Mariner model years with the most steering complaints are 2008 (297 complaints), 2009 (167 complaints) and 2010 (61 complaints).
Other 2010 Mercury Mariner problems
Acceleration 66Engine 63Fuel system 63Transmission 60Electrical 29Visibility 8Body 7Driver assistance 6Brakes 5Airbags 4Lights 4Suspension 2Seat belts 1Wheels 1
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