One problem related to engine failure has been reported for the 2018 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Hyundai Sonata based on all problems reported for the 2018 Sonata.
January 2019, vehicle to dealer for recall for engine failure. March 2019, went to start vehicle. Flashing engine light. Could not get above 2000 rpm. Dealer advised to tow vehicle. Dealer advised car is in limp mode. Dealer advised possible engine replacement. Two weeks later, car is still not repaired. Now they are possibly replacing 'harness'. Advised that they would have vehicle another two weeks.