Where are the light sensors on the Matrix headlights?

[maximusa]

I noticed sometimes when I pull into the garage, the left projector goes off. It could be because the a light sensing sensor is being obstructed. Anyone know where the sensor is that detects night/day?

 

[E90alex]

Nothing should be turning off if the headlights are on. There are no light sensors in the headlights.

 

[maximusa]

So how does the vehicle determine when it's dark to turn on the projectors?

 

[araxara]

So how does the vehicle determine when it's dark to turn on the projectors?

It uses the cameras in the windshield camera cluster and uses the FSD computer to determine what to do.