Keystone Door Mirror

The Keystone Ambient Light Sensor OEM Replacement is an automotive ambient light sensor, also called an automatic headlamp control sensor or dash light sensor. It measures the light outside the vehicle and sends that information to the vehicle's electronics. The vehicle can then adjust display brightness and automatic lighting functions without the driver doing anything.

Key Features:

• Replacement sensor intended to take the place of the original ambient light sensor
• Measures ambient light so automatic lighting and display brightness features can work as designed
• Helps conserve energy and keeps electronic displays easy to read in changing light
• Offered under the Keystone brand, a supplier of collision repair and OEM-style replacement parts

A worn or failed ambient light sensor can cause automatic headlights to come on or switch off at the wrong time. Replacing it restores that automatic operation. Choose the specific part number that matches your application.