[janstice]

I wonder if it’s a tracking off switch or a panic button? I used to work for a fleet tracking SaaS, and some customers with unionised workforces needed a way to disable tracking, and panic buttons were common too (although less so in Europe).

[caseyohara]

What would a panic button do in this context?

[semi-extrinsic]

Signal to HQ "I'm being robbed" or something like this, I would guess.

Around here, such a button in this place would be for the 20 000 lumen extralights. Typically for cars with xenon headlights, like this Opel, the extralights are powered via a relay that takes control signal from a can-bus adapter that extracts the high beam signal, via a manual switch like this.