There are 1 owner-reported engine complaints for the 2012 Infiniti M37in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2012 Infiniti M37. The contact stated that upon taking the vehicle to an independent mechanic for an oil change, she was informed that the radiator pressure O-ring was leaking coolant. The independent mechanic diagnosed that the radiator needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was 96,294.
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