别克凯越 驻车辅助传感器 9019314 / 9027354 倒车雷达电眼

Rear parking assist sensors installed behind the bumper on Buick/GMC and other vehicles, OEM numbers 9019314 and 9027354, designed specifically for OEM reverse radar systems. They emit ultrasonic signals to detect obstacles behind the vehicle and feed distance data back to the control module to aid safe reversing. Installation requires removing the bumper and careful wiring; estimated labor 0.5-1 hour. If the radar sounds continuously, or alarms fail to sound, or false obstacles are detected, the sensor may be faulty and replacement is recommended to ensure stable parking assist function.