Cadillac Buick GM Reverse Parking Sensor 84540979

GM-compatible rear parking radar probe (84540979) for Cadillac XT5/XT6, Buick GL8, LaCrosse, Enclave, etc., uses OEM ultrasonic sensing elements and molding process; stable signal from -30°C to 80°C. Delivers 0.3m to 2.5m accurate distance with alarm response under 0.1 seconds to detect low obstacles. Requires removing rear bumper inner trim; observe clip orientation; recommended to be installed by technicians familiar with GM circuits.