One problem related to automatic transmission control module has been reported for the 2018 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 GMC Yukon based on all problems reported for the 2018 Yukon.
The contact owns a 2018 GMC Yukon. The contact stated that the message "transmission hot - idle engine" was intermittently displayed. The vehicle was taken to the dealer, where the tcm was reprogrammed, and the thermostat and the water pump were replaced; however, the failure persisted. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 101,000.
| Power Train problems | |
| Automatic Transmission Control Module problems |