Mercedes-Benz GLS Operator's Manual page 109

Rear seats
The three red indicator lamps in the button indicate the heating level you have selected.
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 approximately 35 minutes after it is set to level 1.
Turn the SmartKey to position 1 or 2 in the ignition lock (
X
To switch on: press button : repeatedly until the desired heating level is set.
X
To switch off: press button : repeatedly until all the indicator lamps go out.
X
i
If the battery voltage is too low, the seat heating may switch off.
Activating/deactivating seat ventilation
The three blue indicator lamps in the buttons indicate the blower setting you have selected.
Turn the SmartKey to position 1 or 2 in the ignition lock (
X
To switch on: press button : repeatedly until the desired blower setting is set.
X
To switch off: press button : repeatedly until all the indicator lamps go out.
X
i
If the battery voltage is too low, the seat ventilation may switch off.
i
You can open the side windows and the sliding sunroof using the "Convenience opening" feature
( page 90). The seat ventilation of the driver's seat automatically switches to the highest level.
Y
page 140).
Y
page 140).
Y
Seats
107
Z