• GM 13498958 Genuine Automatic Headlamp Control Ambient Light Sensor
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GM 13498958 Genuine Automatic Headlamp Control Ambient Light Sensor

GM 13498958 Genuine Automatic Headlamp Control Ambient Light Sensor

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✔ 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.

When to Replace

• Automatic headlights do not turn on at dusk
• Headlights stay on during daylight hours
• Dashboard does not dim at night or is too bright
• Check engine light or BCM codes related to ambient light sensor
• Automatic headlight system functions erratically

Product Details & Highlights

• ✔ Genuine GM OEM — not an aftermarket or Chinese replica
• ✔ Direct replacement — fits factory mounting location
• ✔ Restores automatic headlight function — proper on/off at dusk/dawn
• ✔ Controls dashboard dimming — maintains proper instrument panel brightness
• ✔ Manufactured to GM’s strict quality standards
• ✔ Backed by GM’s manufacturer warranty (valid through any authorized dealer)

Package Contents

• 1 × GM Genuine Parts 13498958 automatic headlamp control ambient light sensor

FAQ

FAQ

Is this a genuine GM part or a copy?
This is 100% genuine GM OEM — in original factory packaging with the GM part number printed on the label. It is not an aftermarket brand or a replica.

Does this fit my 2015 Chevrolet Cruze?
Yes — the 2015 Cruze is listed as compatible. We recommend verifying with your VIN.

Does this fit my 2014 Buick Encore?
Yes — the 2014 Encore is listed as compatible. Please verify with your VIN.

Does this replace 13231044?
Yes — part number 13498958 supersedes and replaces the older 13231044 reference.

What are the symptoms of a bad ambient light sensor?
Common symptoms include automatic headlights not turning on at dusk, headlights staying on during the day, and the dashboard not dimming properly at night.

Can I install this sensor myself?
Yes — it is typically mounted on the top of the dashboard near the windshield and can be accessed by gently prying it up. However, we recommend consulting your vehicle's service manual for the correct procedure.

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