Three problems related to power steering light on have been reported for the 2009 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Mercury Mariner based on all problems reported for the 2009 Mariner.
The power steering assist light came on and I kept losing my power steering. I could turn the car off then back on and it would work again and then all of a sudden it went out again in the middle of a curve and wint come back on.
The contact owns a 2009 Mercury Mariner. While at a traffic light, there was a knocking in the steering wheel. The contact stated that an electric power steering assist warning light was illuminated. The vehicle was not diagnosed nor repaired. The vehicle was not included in NHTSA campaign number: 14v284000 (steering). The manufacturer was notified of the failure. The approximate failure mileage was 107,000.
The contact owns a 2009 Mercury Mariner. The contact mentioned that the vehicle was serviced under NHTSA campaign number: 14v284000 (steering). While driving 25 mph, the steering wheel became difficult to maneuver. The electric power steering warning light illuminated. The failure recurred constantly. The vehicle was taken to the dealer where it was diagnosed that the power steering control module failed and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 90,571.