Amarok lighting

Low beam yes, high beam no.

Agree with mazcan
On the Tiguan it flashes up messages when the trailer wiring is plugged in. it also does all sorts of systems checks when things are turned on.
I was lucky enough to get HID's with the car and the factory set-up is complex. The lights swivel and self level and its goes through a whole set up routine when you turn the lights on with the engine running. This only happens when stationary.

That level of complexity is buried deep in the computer systems so changing things carries a risk of upsetting something.

That's why I am moving so slowly in setting up my dual battery system so I don't screw something up.

How complex are these cars? If I have the hill hold activated and then stop while leaving the engine running, then open the door the handbrake comes on automatically!!