One problem related to service engine light on has been reported for the 2014 Hyundai Tucson. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Hyundai Tucson based on all problems reported for the 2014 Tucson.
Within 24 hours of hearing knocking and ticking in my engine (with no codes or signals showing any issues) the engine failed. The noise could be heard continuously at any speed for 24 hours. Once the engine failed while I was trying to drive it to the dealership, the service engine light and oil light came on. I've had the vehicle for 4 years and it's at 103,000 miles with constant oil changes and no other issues with the tuscon. In fact, it has brand new oil in there now. There is a recall of the same issue with the sonata, santa fe, and other kia vehicles but none for the tuscon. Tuscon needs to be incorporated into this recall and covered by Hyundai. Hyundai is investigating the engine and oil pan area now. Results are pending.