One problem related to check engine light on has been reported for the 2011 Hyundai Sonata Hybrid. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Sonata Hybrid based on all problems reported for the 2011 Sonata Hybrid.
The car suddenly started chiming loudly, the check engine light lit up, a second light lit on the dash and a warning message that said to check the charging system appeared on the console. The car became near impossible to operate: limited acceleration, jerked repeatedly trying to stop in a safe location, lost power to ac system. . . . Dangerous situation if other traffic had been nearby. The car is now inoperable as we wait for a tow to take it to the nearest dealer.