The contact owns a 2020 GMC Canyon. The contact stated upon depressing the brake pedal and turning the key in the ignition switch to turn off the vehicle, the key failed to turn to the OFF position and remained stuck. There was no warning light illuminated. The contact stated that upon turning the key back to the ON position and moving the gear shifter several times, the contact was able to turn off the vehicle successfully. The contact stated that the failure had been recurring, and on several occasions, the key could not be released and was left in the ignition switch. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 23,000.