Mercedes-Benz GLC 2017 Operator's Manual page 102

Seats
100
The system automatically switches down from
level 3 to level 2 after approximately eight
minutes.
The system automatically switches down from
level 2 to level 1 after approximately ten
minutes.
The system automatically switches off approx-
imately 20 minutes after it is set to level 1.
Turn the SmartKey to position 1 or 2 in the
X
ignition lock (
To switch on: press button : repeatedly
X
until the desired heating level is set.
To switch off: press button : repeatedly
X
until all the indicator lamps go out.
i
If the battery voltage is too low, the seat
heating may switch off.
i
If drive program E is selected, the power of
the seat heating is reduced.
Switching the seat ventilation on/off
Switching on/off
Problems with the seat heating / seat ventilation
Problem
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.
page 127).
Y
Possible causes/consequences and M Solutions
The on-board voltage is too low because too many electrical consum-
ers are switched on.
Switch off electrical consumers that you do not need, such as the
X
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
The blue indicator lamps in the button indicate
the ventilation level you have selected.
Turn the SmartKey to position 1 or 2 in the
X
ignition lock ( page 127).
Y
To switch on:press button : repeatedly
X
until the desired ventilation level is set.
To switch off: press button : repeatedly
X
until all the indicator lamps go out.
i
If the battery voltage is too low, the seat
ventilation may switch off.
i
You can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature ( page 90). The seat ventilation of
Y
the driver's seat automatically switches to the
highest level.
i
When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation.