: Installing My Blackvue Dashcam - Rear View Mirror Question

04-29-12, 02:17 PM
I'm installing my Blackvue DR400 dash cam, and will be affixing it to my windshield, on the driver's side, behind my rear view mirror. I noticed there is a small, square, "sensor" on the back of the mirror, and the camera will be partially blocking that. Does anyone know what that sensor is for?


04-29-12, 11:26 PM
Looks like it is the auto high beam sensor. It automatically switches the high beams off when the sensor detects any type of lighting from oncoming vehicles.

05-01-12, 05:01 AM
Didn't even know these cars came equipped with that...