2009 Mercury Mariner: problems, recalls and reliability
2 recalls and 336 owner complaints on record; the weakest area is steering (49% of complaints); the 2007 and 2011 model years look more trouble-free.
Data updated weekly · latest recall Jun 2015
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 336 owner complaints filed with NHTSA for this exact model year.
“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.”Owner report · Steering · Feb 2026
“The power steering stopped working. A note did appear to let me know it wasn't working. I took it in to the mechanic and he confirmed the power steering wasn't working.”Owner report · Steering · Jan 2026
“My steering has been locking while I am driving and causing loss of steering and control of car. I have contacted crossroads dealer and I have not gotten a response as I am now aware there has been a safety recall on this vehicle.”Owner report · Steering · Dec 2025
Show 7 more owner reports
“Vehicle notification stating Power Steering Assist Fault. Power steering locked up on highway going 60 mph while a child was in vehicle and vehicle was extremely hard to get off the highway. Parkway Ford of Pampa, Tx would not honor recall as VIN was not pulling up a recall. But a different auto mechanic repair shop did verify it was a recall.”Owner report · Steering · Jun 2025
“The contact owns a 2009 Mercury Mariner. The contact stated that while her son was driving at various speeds, the vehicle intermittently experienced a loss of power steering assist. No warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to NHTSA Campaign Number: 14V284000 (Steering); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 170,000.”Owner report · Steering · Oct 2024
“The power steering on my vehicle has failed and the repair shop stated there is an expired recall for the steering on this vehicle from 2014. I bought my vehicle (2009 Mercury Mariner) 1 year ago. VIN: [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”Owner report · Steering · Sep 2024
“My 2009 Mercury Mariner's steering wheel started locking up 3 months ago, making it impossible to drive. I looked up the make and model to see if there was a safety recall on it, and there was, but my VIN wasn't included in the recall campaign, even though it fits the criteria exactly. ///////////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.////”Owner report · Steering · Mar 2024
“The contact owns a 2009 Mercury Mariner. The contact stated while starting the vehicle, the vehicle lost power steering functionality. The contact stated that the steering wheel was locked. The message "Power Steering Assist Fault" was displayed. The dealer was notified of the failure and referred the contact to the manufacturer for assistance. The vehicle was not diagnosed or repaired. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 14V284000 (Steering) however, the failure persisted. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 150,000.”Owner report · Steering · Jan 2024
“The contact owns a 2009 Mercury Mariner. The contact stated that while at a complete stop, the steering wheel was jerking independently. There was no warning light illuminated. The contact stated that upon starting the vehicle, the power steering assist failed to operate as needed. The contact stated that the power steering warning light was illuminated. The dealer and the manufacturer were notified of the failure and informed the contact that the vehicle was not included in NHTSA Campaign Number: 14V284000 (Steering). The vehicle was not repaired. The failure mileage was approximately 150,000.”Owner report · Steering · Nov 2023
“Purchased used car in what appeared to be very good condition. Within a few months, Power Steering Failure. Very difficult and dangerous to drive without power steering. Need car for work.”Owner report · Steering · Aug 2023
When filing, owners marked a crash in 11 of these complaints and injuries in 3 - self-reported to NHTSA, not verified accident statistics.
Recalls - 2 campaigns
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.
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.
The Timken Company (Timken) is recalling certain aftermarket front wheel bearings, part number 510072, sold from January 22, 2015, to May 21, 2015, to be used as service parts on 2001-2012 Ford Escape, 2001-2011 Mazda Tribute, and 2005-2011 Mercury Mariner vehicles. The affected wheel bearings have incorrect dimensions of a 42mm bore, 76mm outer dimension, and 39mm width, instead of a 42mm bore, 78mm outer dimension and a 45mm width.
Remedy: Timken has begun notifying distributors who will offer purchasers replacement wheel bearings, free of charge. The recall began on May 21, 2015. Owners may contact Timken customer service at 1-866-984-6536.
Trouble codes owners mention
OBD-II codes that appear in NHTSA complaints about this car.
Specifications
Factory options offered for the 2009 model year, decoded from the NHTSA vPIC database. Individual vehicles have one of each.
How other years compare
Check your exact Mariner by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 2009 Mercury Mariner reliable?
NHTSA has 336 owner complaints and 2 recall campaigns on record for the 2009 Mercury Mariner. The most complained-about area is steering (49% of complaints).
At what mileage do 2009 Mercury Mariner problems usually appear?
Half of the complaints that mention mileage were filed at 97,000 miles or less.
Does the 2009 Mercury Mariner have open recalls?
2 recall campaigns have been issued, the latest concerning steering:electric power assist system. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.