Mercedes-Benz GLK-Class 2012 Owners Manual - Manual (Page 97)

X Move adjustment lever : in the direction
of the arrow until the desired backrest
contour is achieved.
Adjusting the four-way lumbar
support
Vehicles with memory function:
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back.
:
To raise the backrest contour
;
To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour
Switching the seat heating on/off
Switching on/off
The three red indicator lamps in the button
indicate the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off.
Driver's and front-passenger seat
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 20 minutes after it is set to
level
1.
X Make sure that the SmartKey is in position
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.
Problems with the seat heating
The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
Seats
95
Seats, steering wheel and mirrors
Z