One problem related to engine cooling system has been reported for the 2011 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Sonata based on all problems reported for the 2011 Sonata.
The contact owns a 2011 Hyundai Sonata. The contact stated the engine light was illuminated on the instrumental panel on an intermittent basis. The vehicle was inspected by a dealer who informed the contact that the thermostat had failed and needed to be replaced. The vehicle was repaired four times in six months. The failure mileage was approximately 5,000.