Mercedes-Benz GL Operator's Manual page 244

Driving systems
242
pedestrians cannot be gaged accurately by
looking at a screen.
It may be the case that objects are highlighted
as well as pedestrians.
Fogged up or dirty windshield
If the windshield in front of the camera is
fogged up or dirty on the inside or outside, the
Night View Assist Plus display is affected.
To defrost: check the automatic air
X
conditioning settings (
down the camera cover (
To defrost the inside of the windshield:
X
fold down the camera cover (
and clean the windshield (
page 160) and fold
Y
page 381).
Y
page 381)
Y
page 379).
Y