One problem related to engine head gasket leaking has been reported for the 2018 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Hyundai Elantra based on all problems reported for the 2018 Elantra.
Car continuously says it overheating. First trip to dealership could replicate the issue. Second trip a month later. Replaced head gasket due to leak and exhaust pipe. Currently sitting in it waiting for roadside assistance. Still overheating not even a week later also now putters and shakes when I try to start it.