One problem related to check engine light on has been reported for the 2018 Hyundai Tucson. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Hyundai Tucson based on all problems reported for the 2018 Tucson.
Driving on freeway no warning lamps on dashboard. Exit freeway to get gas and there is minimal engine performance and check engine light illuminates. Cylinders are not firing, no compression. Engine failure confirmed by Hyundai service dept and independent mechanic.