别克凯越1.6 AT 刹车灯开关 4插 9073937/95368629 原厂品质

Buick Excelle GT 1.6 AT brake light switch with 4-pin; OEM numbers 9073937 or 95368629. Direct replacement; controls brake light on/off and sends brake signals to transmission and ECU. After installation, typical issues like brake lights not illuminating, shifting delay, or cruise control failure are resolved. If the brake lights remain on, do not light, or shifting causes severe jerks, the internal contacts may be aged and require replacement to ensure driving safety.