Illuminates when the rear fog lamps are switched on. ...

Auto high beam (green)

Illuminates when the auto high beam feature is enabled. ...

See also:

Brake (red)
USA.    Canada.    Illuminates briefly as a bulb check when the ignition is switched on. If the lamp illuminates while driving, suspect low brake fluid level or a fault w ...

Problems with PARKTRONIC
...

Ultrasonic Parking Assist
If available, Ultrasonic Rear Parking Assist (URPA) uses sensors on the rear bumper to detect objects while parking the vehicle. It operates at speeds less than 8 km/h (5 mph). URPA uses audible ...