Trumpchi GS4 reverse light switch MB837106/MB837 sensor direct replacement

This GAC GS4 reverse light switch directly replaces original numbers MB837106 and MB837, a universal part that requires no rewiring or adjustment; install and use immediately. Its function is to detect when the transmission is in reverse and automatically connect the reverse light circuit, while also sending signals to the rear parking radar and imaging system. Compatible with all GAC GS4 models, including 1.3T and 1.5T versions. If the reverse lights do not illuminate, rear sensors do not respond, or the lights flicker when shifted into reverse, the switch is likely aged; replacing it will restore original function.