One problem related to transmission slip out of gear 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.
Vehicle randomly slips out of gear when break is quickly depressed when rolling from a stop. Vehicle needs to be shut down and restarted. A very serious safety issue. Vehicle randomly fails to shift up when accelerating. Another very serious safety issue. Duel-clutch transmission is clearly defective as designed.