2021 MERCEDES-BENZ GLC SUV reset sun roof

#
Check whe ther the sliding sunroof can be
ra ised or opened when a roof luggage rack is
fi tted. #
Tostart automatic operation: pressthe
3 button be yond the point of resis tance
or pull and release it. #
Tointer rupt automatic operation: briefly
press the3 button in any direction.
The opening/closing process will be stop‐
ped.
Au tomatic reve rsing function of the sliding
sunroof
If an obs tacle obstructs the sliding sunroof dur‐
ing the closing process, the sliding sunroof will
open again automaticall y.The automatic reve rs‐
ing function is only an aid and is not a substitute
fo ryo ur attentiveness. #
During the closing process, make sure that
no body parts are in the closing area. &
WARNING Risk of becoming trapped
despi tethere ve rsing function being
active
In particular, there ve rsing function does not
re act:
R tosoft, light and thin objects, e.g. fingers.
R towa rdsth e end of the closing procedure.
R during resetting. #
During the closing process, make sure
th at no body parts are in the closing
area. #
Release the button immediately if
somebody becomes trapped.
or #
Brief lypress the button in any direction
during automatic operation.
The closing process will be stopped. Au
tomatic functions of the sliding sun roof The sliding sunroof will be closed automatically
when
theve hicle has been switched off in the
fo llowing situations:
R if it starts torain
Ra in is de tected byara in sensor on the
windscreen.
R inextreme temp eratures
R afte r a cer tain time (depending on the on-
board electrical sy stem voltage)
R ifth ere is a malfunction in the po wer supp ly
The sliding sunroof will rise at there ar in order
to continue ventilating theve hicle interior.
If th e sliding sunroof is obstructed during an
automatic closing procedure, thero of will be
opened again slightly. The automatic function for
th e sliding sunroof and the side windo wswill
th en be deactivated. Opening and closing
91

Re
ctifying problems with the sliding sunroof &
WARNING Risk of becoming trapped or
fa tal injuries when the sliding sunroof is
closed again
If th e sliding sunroof is closed again immedi‐
ately af ter it has been bloc ked or reset, it will
close with increased forc e. #
Make sure that no parts of the body are
in the closing area. #
Release the button immediately if
somebody becomes trapped.
or #
Brief lypress the button in any direction
during the automatic closing process.
The closing process will be stopped. The sliding sunroof cannot be closed and
you
cann otsee the cause.
If th e sliding sunroof is obstructed during closing
and reopens again slightly: #
Immediately af ter auto matic reve rsing, pull
and hold the3 button down again tothe point of
resis tance until the sliding sunroof is
closed.
The sliding sunroof will be closed with
increased forc e.
If th e sliding sunroof is obstructed again and
opens again slightly: #
Repeat the pr evious step.
The sliding sunroof will be closed again with
increased forc e.
Ve hicles without a panorama sliding sun‐
ro of: the sliding sunroof is not operating
smoo thly. #
Reset the sliding sunroof.
Re setting the sliding sunroof #
Push the3 button up tothe point of
re sis tance repeatedly until the sliding sun‐
ro of is fully open. #
Press the3 button for ano ther second. #
Close the sliding sunroof. Ro
ller sunblinds Extending
there ar side window roller sun‐
blinds *
NO
TEDama getothe inertia reel due to
it snapping back If suddenly snapped bac
k,the inertia reel
may be damaged. #
Alw ays mo vethero ller sun blind man‐
uall y. #
Do not drive wi th thero ller sun blind
hooked in and one or more side win‐
do ws open at the same time. 92
Opening and closing

R
Ra dar and ultrasonic senso rs
Damage................................................. 184
Ra dio
Overview of the functions and sym‐
bols....................................................... 293
Ra in-closing feature
Side wind ows.......................................... 87
Sliding sunroof......................................... 91
Ra ising theve hicle
Re ar of theve hicle................................2 20
REA CHregulation........................................32
Re ading lamp
see Interior lighting
Re ading light
Switching on/off with hand mo ve‐
ments.................................................... 260
Re ar door (child saf ety lock)...................... 70
Re ar fog light
Switching on/of f................................... 12 8
Re ar of theve hicle
Lo we ring............................................... 220 Ra
ising.................................................. 220
Re ar seat
see Seat
Re ar seat belt
St atus display......................................... .44
Re ar seat belt status display ..................... 44
Re ar window heater.................................. 14 2
Re ar-view mir ror
Anti-dazzle mode (automatic)................ 14 0
Re ar-view mir ror
see Outside mir rors
Re cycling
see Take -ba ckof end-of-life vehicles
Re ducing agent
see AdBlue ®
Re fuelling
Re fuelling theve hicle............................. 171
Re gistration
Ve hicle.................................................... 32
Re gulatory radio identification................ 355 Re
mo tecont rol (stationa ryheater/
ve ntilation)
Displa ys................................................. 14 9
Problems............................................... 15 0
Re placing the battery............................ 14 9
Setting................................................... 14 8
Re mo teOnline
Charging thest ar ter battery.................. 154
Cooling/heating theve hicle interior...... 154
St arting theve hicle............................... 15 5
Re scue card................................................. 33
Re ser ve
Fu el........................................................ 361
Re set function (MBUX multimedia
sy stem)..................................................... .266
Re set function (MBUX multimedia
sy stem)
see Reset function (MBUX multime‐
dia sy stem)
Re setting (factory setting)
see Reset function (MBUX multime‐
dia sy stem)
Re sidual heat............................................. 14 5 Index
463