2009 Mercury Mariner Electronic stability control Problems
- Complaints
- 4about this part
- Share
- 1%of 315 total for the year
- Median mileage
- 147,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electronic stability control of the 2009 Mercury Mariner, 1% of the 315 complaints for this model year. Where a mileage was given, the median is 147,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was on my way home in my 2009 Mercury Mariner and my car started slowing down and was acting as though it was going to cut off. There was nowhere immediately to pull off and it was a very dangerous road. Finally after 5 minutes of praying and trying to keep going (very slowly) I made it to pull over. I turned off the car and started again and was able to make it home. I am reading online where this happens often to these makes and model. Its a throttle module issue. …”
NHTSA complaint #10546426, filed 2013-10, 106,500 miles“I purchased my 2009 Mercury Mariner in 2015! Recently, as I was unaware of the recall with ford a few years back, I've had front and rear bearing issues! Also my ballpoints were defected and my control arms! My tire pressure sensor fault stays on! I've taken my 2009 Mercury Mariner to star tire's best one auto & tires and had my ballpoints, front and rear bearings, control arms, and front wheel alignment repaired totaling in $780! Three days later on the date of 11/11/2017, my power steering assist fault came on! My 2009 Mercury Mariner was stationary and was extremely difficult to turn!”
NHTSA complaint #11045459, filed 2017-11, 144,000 miles“Vehicle suddenly loses power steering assistance while driving. If the ignition key is cycled the power steering assist may function again. The affected component was determined to be the power steering control module (pscm) within the steering column. A recall was issued for this in 2014, however only the software was updated when the vehicle was brought in for repair. The malfunctioning components were not replaced and the issue has returned.”
NHTSA complaint #11355433, filed 2020-09, 150,000 milesElectronic stability control: other model years
Other parts of the 2009 Mercury Mariner
167 complaintsEngine
53 complaintsTransmission and drivetrain
44 complaintsVehicle speed control
41 complaintsFuel system
30 complaintsElectrical system
22 complaintsOther or unknown
15 complaintsBrakes
14 complaintsEngine cooling
7 complaintsWheels
7 complaintsAir bags
4 complaintsBody and structure
3 complaints
← All problems reported for the 2009 Mercury Mariner
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology