MERCURY Complaints

The contact owns a 2011 Mercury Mariner. The contact stated that while driving at an undisclosed speed, the power steering became inoperable with no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the steering shaft port sensor had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 96,000.

While driving at low speed performing a turn in a residential area, the vehicle suddenly displayed a “Steering Assist Fault” warning message and the steering wheel became completely locked with essentially no movement possible. I attempted to turn the wheel with extreme force but it would barely move, creating a serious safety hazard. I was fortunately driving slowly at the time. If this had occurred at higher speed or in traffic, it could have caused a crash, serious injury, or even death. Prior to the incident, there had occasionally been a slight amount of unusual tension/resistance felt while turning the steering wheel, although it was minor and inconsistent before the complete failure occurred. The failure happened suddenly while driving normally. The issue appears related to the electronic power steering (EPAS) / steering assist system. Similar steering assist failure complaints and recalls/investigations have existed on related Ford Fusion/Mercury Milan vehicles involving sudden loss of steering assist and steering control concerns. The vehicle is also currently affected by brake recall 19S54/19V904 involving braking performance concerns, increasing overall safety concerns regarding the vehicle. At the time of filing this complaint, the steering issue has not yet received a complete repair or confirmed diagnosis because the manufacturer and dealer stated the VIN is not currently included under steering recall coverage.

While driving my vehicle headlights turn off and back on, sometimes off for minutes sometimes flickering.

The throttle body on the 2006 Mercury Montego SHOULD HAVE been recalled just like the 2007 Mercury Montego that I owned previously was recalled. It has the SAME EXACT problem! The throttle is VERY DANGEROUS as it dumps fuel without me touching the gas pedal. I have already almost killed a pedestrian! Please help! I cannot afford to fix the car and I don't want to hurt anyone. Thank You , [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2005 Mercury Grand Marquis. The contact stated while attempting to make a left turn, the steering wheel failed to operate as intended causing the contact to have driven straight instead of turning. No warning light was illuminated. An independent mechanic was contacted. The vehicle was towed to an independent mechanic where it was diagnosed as the steering column needed to be replaced. The vehicle was repaired, as the steering column was replaced twice. The contact mention the failure has a occurred on two different occasions. The manufacturer was notified of the failure, and they offered no assistance. The failure mileage was 145,000.

My vehicle was returned to me following a torque sensor replacement on 4/9/2026 in poor condition (locked steering and a catastrophic gash in the driver-side tire) rendering it undrivable and unsafe. Crossroads Ford of Prince George shop's inspection report claims the tire damage was pre-existing, I have conclusive evidence to the contrary: Virginia State Inspection: My vehicle passed a Virginia state safety inspection on 2/27/2026. Per state law, any tire with a gash or sidewall crack is an automatic failure. This legally certifies the tire was intact immediately prior to their service. Recent Tire Service: I replaced my rear tires at OK Tire and Auto on 3/30/2026. At that time, a full tread and sidewall inspection of my front tires confirmed they were in good condition. The timing of the dealership's communication confirms the damage occurred while in their care: I arrived for my 9:30a appointment around 9:25a. No damage was noted during the initial intake. I was in their facility when I watched a mechanic drive to the other side of the service parking lot without being informed of a "catastrophic" safety issue. I was only notified of the gash at the end of the day when the vehicle was scheduled for return. Their staff now deems the vehicle "unsafe to drive" for their own employees. If this gash were present at 9:30am, it would have been told to me before I left the dealership. The locked steering is a direct result of an improper torque sensor installation (which is the reason why I was dropping my car off to be serviced). My car was in driving condition as I drove it to the dealership for my appointment with no issues. I received a call from advisor Sade Gregory at 11:03 informing me that I would need a steering column now that is on backorder. At 11:13am I received a confirmation for car delivery to me then at 1:06pm confirmation that my car will arrive at my house at 1:15. At 1:20 Sade Gregory says my car can't be delivered now because its unsafe for them.

My dealer says my subframe needs to be replaced, and controll arm at a cost of 3600 dollars, I don't understand why my subframe needs to be replaced, I've owned cars for as long as 20 yrs and never had that problem. This sounds like a manufacturers problem.

225/60R17 tire purchased new started going flat in the first week. Walmart tire said there was no warranty. Receipt says otherwise. P&M tire of Blackwell, OK found defects in the interior sidewall and told us the tire had manufacturing defects. Reported to Nexen by making an account and filing a warranty request which they denied. They keep saying we are lying to deflect blame. We have the tire, it could be inspected by their preferred tire shop but they would rather be mad and yell at us. There is no receipt from P&M because they didn't charge us for looking at a tire they could not repair.

1) The electric power steering system failed. The dashboard displayed the message “Service Power Steering Now,” and the steering assist stopped working, making the steering extremely stiff. The vehicle also lost reverse gear, where the engine revs but the vehicle does not move when shifted into reverse. The vehicle is still in my possession and available for inspection upon request. 2) When the power steering assist failed, the steering wheel became extremely difficult to turn, which made the vehicle harder to control. This created a safety risk when attempting to turn or maneuver the vehicle in traffic or parking areas. Additionally, the inability to use reverse gear could create a hazardous situation if the driver cannot back out of traffic, parking spaces, or other areas. 3) The problem has not yet been inspected or confirmed by a dealership or independent service center. 4) No, the vehicle has not been inspected by the manufacturer, police, insurance representatives, or other parties. 5) The dashboard displayed the message “Service Power Steering Now,” and the steering assist stopped working. The problem appeared suddenly when the vehicle was started. The steering immediately became extremely stiff, and the warning message appeared at that time. This failure created a serious safety hazard because the steering assist stopped working without warning, making the vehicle extremely difficult to control. A sudden loss of steering assist can increase the risk of a crash, especially when turning, parking, or driving in traffic. I am concerned that other drivers could experience the same sudden steering failure. The vehicle displayed the message “Service Power Steering Now,” and the steering immediately became extremely stiff. The vehicle is currently undriveable in reverse and difficult to steer safely.

The contact owns a 2009 Mercury Mariner. The contact stated that while driving at undisclosed speeds on several occasions, the steering wheel started shaking abnormally. The contact added that on several occasions while driving at undisclosed speeds, the vehicle lost power steering functionality, but the vehicle regained power steering functionality shortly afterwards. The "Power Steering Assist Fault" message was displayed on one occasion. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 117,900.