There are 2 stored owner reports matching the tires & wheels leading-label group for the 2009 Mercury Mariner in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)TIRE PRESSURE SENSOR FAULT. AT STARTUP, LOW TIRE PRESSURE WARNING LIGHT FLASHES, THEN REMAINS STEADY, ALTHOUGH TIRE PRESSURE IS AT RECOMMENDED PRESSURE (35 PSI). SERVICE TECHNICIAN INDICATES REPLACING FAULTY TIRE PRESSURE SENSOR LOCATED ON LEFT FRONT TIRE AT ESTIMATED COST OF $150. CUSTOMER MANUALLY CHECKS TIRE PRESSURE AT LEAST MONTHLY.
VEHICLE HAS ORIGINAL MICHELIN P225/65R17 CROSS TERRAIN TIRES: DOT SEQUENCE B93T, DOT PRODUCTION NUMBER PYMX 2908, WITH 55,057 MILES. DURING ROUTINE OIL CHANGE AND TIRE ROTATION, SHOP DISCOVERED DRY ROTTING BETWEEN TREADS AND FINE-LINE CRACKING ON ALL FOUR TIRES REQUIRING NEAR-FUTURE REPLACEMENT. MICHELIN SIX-YEAR WARRANTY EXPIRED JULY 2015. VEHICLE IS PARKED IN RESIDENTIAL GARAGE; THERE IS NO KNOWN ADVERSE WEATHER EXPOSURE.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.