The contact owns a 2025 Cadillac XT4. The contact stated that while driving at various speeds, the brake pedal was depressed to the floorboard, with the check engine and an unknown brake warning light illuminated. Due to the failure, the contact had the vehicle towed to a dealer, and the vehicle was diagnosed with a defective brake module. The vehicle was repaired under warranty. The contact stated that a week after the vehicle was repaired, the four tires seized while in reverse(R). The contact was able to drive the vehicle to the dealer, and the vehicle was serviced for a defective backup sensor. The contact stated that while driving at 20 MPH, the brake pedal depressed to the floorboard with the same warning lights illuminated. The contact continuously pumped the brake pedal to stop the vehicle and drove into an open parking lot. The contact was able to slow down enough to come to a complete stop and coasted into a parking lot. Due to the failure, the vehicle was towed back to the dealer where the vehicle was diagnosed with a defective brake module. The manufacturer was notified of the failure and the contact was informed that the part for the repair was on back order. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 280.