GM 13498958 Genuine Automatic Headlamp Control Ambient Light Sensor

✔ GM Genuine Parts 13498958 Automatic Headlamp Control Ambient Light Sensor — Genuine OEM Part ✔ Fitment: Select Buick, Chevrolet, and Opel/Vauxhall models (2011–2023) — See Fitment Table for full details ✔ Direct replacement for factory ambient light sensor — no modifications required ✔ Manufactured to GM’s original specifications — Designed, engineered, and tested to rigorous standards ✔ Genuine OEM quality — restores automatic headlight and dashboard dimming function ✔ Other Names: Daytime Running Light Sensor, Sunload Sensor, Light Sensor   GM Genuine Parts 13498958 Automatic Headlamp Control Ambient Light Sensor — for Select GM Models Automatic headlights that no longer turn on at dusk, headlights that stay on during the day, or a dashboard that does not dim properly at night — these are common signs that your ambient light sensor is failing. The ambient light sensor detects the amount of light outside the vehicle and sends a signal to the Body Control Module (BCM) to automatically turn the headlights on or off and adjust the instrument panel brightness accordingly. A faulty sensor can cause the automatic headlight system to malfunction, affecting safety and convenience. Replacing it with this genuine GM part restores proper automatic lighting control. This is a factory-original GM automatic headlamp control ambient light sensor (OE part number 13498958). It is a direct replacement component designed, engineered, and tested to rigorous standards and backed by General Motors. This is the same part sold at GM dealerships.