别克/雪佛兰/GMC/庞蒂克/土星 24230719 变速箱档位开关，精准匹配

Buick/Chevrolet/GMC/Pontiac/Saturn 24230719 automatic transmission gear position switch mounted on the side of the transmission case, directly connected to the shift lever to transmit the gear position to the ECM and BCM, ensuring start, reverse lights, and gear display function. This part perfectly matches many common models; replacement requires raising the vehicle and removing from the side of the transmission; suggested labor 0.5-1 hour. If D or N cannot start, gear display is wrong, or reverse lights do not illuminate, replace to restore full vehicle function.