2009 Mercury Mariner Exterior lighting Problems
- Complaints
- 2about this part
- Share
- 1%of 315 total for the year
- Median mileage
- 50,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the exterior lighting of the 2009 Mercury Mariner, 1% of the 315 complaints for this model year. Where a mileage was given, the median is 50,000 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.
“While driving the vehicle's dash lights and head lamps go black for 2-5 minutes before coming back on. My car was taken to the dealer multiple times and was unable to be diagnosed. I also contacted ford directly as this problem poses a hazard during night driving. To date there has been no resolution. While driving the vehicle will lose all acceleration, this issue happens while driving down the road posing a hazard as you have to turn the vehicle off an on again to regain control.”
NHTSA complaint #10568954, filed 2014-03, 50,000 miles“The contact owns a 2009 Mercury Mariner. The contact stated that the vehicle experienced a failure in which the front driver's side headlight assembly would fill up with water and fog, severely reducing visibility. The vehicle was taken to an authorized dealer and the headlight was repaired. The failure continued to occur. The manufacturer offered no assistance. The failure mileage was unknown. ....updated 08-24-12 updated 08/31/2012”
NHTSA complaint #10464390, filed 2012-07Exterior lighting: 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 complaintsElectronic stability control
4 complaints
← All problems reported for the 2009 Mercury Mariner
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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