Automatic Transmission Control Module problems of the 2021 Hyundai Santa Fe

The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving 60 mph with the adaptive cruise control mode activated, the contact heard three beeping sounds, and the vehicle lost motive power. There was no warning light illuminated. The contact veered to the side of the road. The contact restarted the vehicle and continued driving. The contact stated that the vehicle made the beeping sound again while driving 50-55 mph however, the vehicle had not lost motive power. The dealer was notified of the failure and informed the contact that the vehicle was safe to drive because there was no warning light illuminated. The contact continued driving. The contact stated that upon restarting the vehicle, the powertrain control module (pcm) warning light was illuminated. The vehicle was towed to the dealer where the transmission was flushed; however, the failure reoccurred 2 weeks later while driving. The vehicle was taken back to the dealer where the transmission fluid was refilled; however, the failure persisted. The vehicle was taken back to the dealer where it was diagnosed that the transmission needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 22v746000 (power train) for which the VIN was included. The manufacturer was not notified of the failure. The failure mileage was approximately 21,000.