One problem related to defroster/defogger/hvac system has been reported for the 2020 Lexus GX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Lexus GX based on all problems reported for the 2020 GX.
The contact owns a 2020 Lexus Gx460. The contact stated upon starting the vehicle and driving for 10-15 minutes, the windshield and the windows became significantly foggy, requiring the contact to remove the seat belt to lean forward and wipe the windshield to pull over safely. Additionally, the contact wiped all the windows and resumed driving. The contact stated the failure had been recurring while driving. The vehicle was taken to the dealer, where it was diagnosed with an hvac blend door actuator failure. The vehicle was being repaired. The manufacturer was notified of the failure and a case was filed. The failure mileage was approximately 80,000.