Table 1 shows one common exterior lighting related problems of the 2009 Mercury Mariner.
| Problem Category | Number of Problems |
|---|---|
| Headlights problems |
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.