2008 Mercury Mariner Hybrid Other or unknown Problems
- Complaints
- 5about this part
- Share
- 4%of 116 total for the year
- Median mileage
- 71,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the other or unknown of the 2008 Mercury Mariner Hybrid, 4% of the 116 complaints for this model year. Where a mileage was given, the median is 71,000 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.
“Returning from florida to georgia and passed a vehicle at about 70mph and released the accelerator but vehicle kept accelerating. I pressed the brake pedal but vehicle kept accelerating. I pressed the accelerator again and vehicle finally stopped accelerating. Additionally, stop safely now message intermittently occurs at highway speeds and around town in traffic and slows the vehicle to perhaps 10-15mph and tells me to pull over. This has happened randomly at unspecific times and in heavy traffic which could be dangerous. …”
NHTSA complaint #10716173, filed 2015-05, 71,000 miles“Abs and emergency brake light came on spontaneously. Braking abnormal and unable to stop vehicle. Braking system not working. Neutral and had to do shoulders to control vehicle and slow down gradually. Very dangerous!”
NHTSA complaint #10582966, filed 2014-04, 29,000 miles“Vehicle's gas engine shut off on the freeway at 65 MPH without warning leaving only the electric motor to power it. The reduced the maximum speed to 25 MPH. Dealer said failure of the motor electronics cooling pump caused the loss of power.”
NHTSA complaint #10391910, filed 2011-03, 65,000 miles“The contact's son owns a 2008 Mercury Mariner Hybrid. The contact stated that while her son was starting the vehicle, the steering wheel lost power steering functionality. There were no warning lights illuminated. The contact's son was able to continue the drive the vehicle, however, extra effort was needed while driving the vehicle. The vehicle was taken to the dealer where it was diagnosed that the torque sensor needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #11455085, filed 2022-03, 143,340 milesRelated service bulletins
- 10029164Jun 1, 2009Ford/mercury: vehicles may exhibit a red triangle light and codes indicating a transaxle overtemp. Condition may result in reduced power as system activates fail safe operation.
Other or unknown: other model years
Other parts of the 2008 Mercury Mariner Hybrid
34 complaintsEngine
28 complaintsSteering
24 complaintsElectrical system
22 complaintsFuel system
18 complaintsTransmission and drivetrain
16 complaintsEngine cooling
13 complaintsVehicle speed control
11 complaintsElectronic stability control
2 complaintsHybrid propulsion system
2 complaintsBody and structure
1 complaints
← All problems reported for the 2008 Mercury Mariner Hybrid
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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