Mercedes-Benz G-Class 2013 Owners Manual - Manual (Page 135)

i You should only select this setting until
the windshield is clear again.
Switching the windshield defroster
on/off
G WARNING
Any accumulation of snow and ice should be
removed from the windshield before driving.
Otherwise, your vision may be impaired,
which could endanger you or others.
X Turn the SmartKey to position
2 (
Y page 139) in the ignition lock.
X To switch on: press button ;.
Indicator lamp : lights up.
X To switch off: press button ;.
Indicator lamp : goes out.
i At outside temperatures above
50 ‡(10 †), the windshield heating cannot
be activated. Indicator lamp : lights up
briefly when you attempt to activate it and
then goes out again.
i The windshield defroster has a high
current draw. You should therefore switch
it off as soon as the windshield is clear. The
windshield heating otherwise switches
itself off automatically after 10 minutes.
i If you turn on the windshield heating for
the fourth consecutive time, the windshield
heating will automatically switch off after
5 minutes.
i If the vehicle's electrical system voltage
is too low because too many electrical
consumers are switched on, indicator
lamp : flashes. After approximately
30 seconds, the windshield heating turns
off automatically.
Switching the rear window defroster
on/off
Activating/deactivating
G WARNING
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
X Turn the SmartKey to position
2 (
Y page 139) in the ignition lock.
X USA only: press the ª button.
The indicator lamp in the ª button lights
up or goes out.
i The rear window defroster has a high
current draw. You should therefore switch
it off as soon as the rear window is clear.
as it only switches off automatically after
several minutes.
i If the battery voltage is too low, the rear
window defroster may switch off.
Problems with the rear window
defroster
If the indicator lamp in the ª rear window
defroster button flashes, the on-board
voltage is too low. The rear window defroster
has deactivated prematurely or cannot be
activated.
X Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically.
Operating the climate control systems
133
Climate control
Z