There are 1 owner-reported lighting complaints for the 2009 Mercury Marinerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* 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 *BF UPDATED 08/31/2012 *JS
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026