Four problems related to other fuel system have been reported for the 2010 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Hyundai Sonata based on all problems reported for the 2010 Sonata.
Subject: non-collision engine compartment fire - 2010 Hyundai Sonata (VIN: 5npeu4af3ah630796) ?"on Dec 19 2025, my 2010 Hyundai Sonata suffered a sudden, non-collision fire that originated in the engine compartment. While there are currently no 'open' recalls on this VIN, I am formally reporting this incident as it matches the failure patterns documented in NHTSA defect petition dp18-003 regarding non-crash fires in Hyundai/kia vehicles. ?preliminary inspection of the damage shows characteristic signs of a manufacturer defect, specifically potentially related to a connecting rod bearing failure leading to an engine block puncture and oil ignition, or an electrical short in the abs module—both of which have been subjects of major Hyundai fire investigations and class-action settlements (e. G. , engine ii settlement).
Fuel pump failure, causing car to stop immediately on highway.
Engine failed would not start in less than 55200 miles.
Whenever filling gas, I would use a automatic cut-off in fuel dispenser lock. But the lock is always released after the point of release allowing gas to overfill and would cause gas to spread on side of vehicle as well as on the floor. This has happened regardless of the gas station pump.