2021 MERCEDES-BENZ GLS SUV park assist

#
Ensure there is su1cient ground clear-
ance between the underbody and the
guide rails of the car wash. #
Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is su1cient. To
avo id damage toyour vehicle when using a car
wa sh, ensu rethefo llowing beforehand:
R Active Distance Assist DISTRONIC is deactiva-
te d.
R The HOLD function is switched o..
R The 360° Camera or there ve rsing camera is
switched o..
R The side windo wsand sliding sunroof are com-
ple tely closed.
R The outside mir rors are folded in.
R The blo werfo rth eve ntilation/heating is
switched o..
R The windsc reen wiper switch is in position g.
R The key is at a minimum dis tance of 3 m away
from theve hicle. Otherwise theta ilgate could
open unintentionall y. R
In automatic car washes with con veyo r sys-
te ms:
- Neutral iis engaged.
- Ifyo uwo uld like tolea vetheve hicle while
it is being washed, make sure theke y is
located in theve hicle. The park position
j isotherwise automatically engaged.
% Toprev ent damage tothe tyres and wheels,
drive straight and in tothe centre of the guide
ra ils of the car wash.
% If, aTer the car wash, youre mo vethewax
from the windscreen and wiper rubbers, this
will pr event smearing and reduce wiper noise.
A A ut ut omatic car w
omatic car w ash mode
ash mode
In car wash mode, theve hicle is prepared for driv-
ing into the automatic car wash. Car wash mode
can be activated at a speed of up to20 km/h
Ac tivate (/ page 373).
The following settings are made when car wash
mode is activated:
R The outside mir rors are folded in. R
Topreve ntthe windscreen washer system
from starting up automaticall y,thera in sensor
is deactivated.
R The rear wind owwiper is deacti vated.
R The windo wsand the sliding sunroof are
closed.
R Mer
Mer cedes-Ma
cedes-Ma ybac
ybach v
h vehicles:
ehicles: theru nning
boa rds are retracted.
R The air conditioning system is set toair-recir-
culation mode.
R Parking Assist PARKTRONIC is deactivated.
R V
Vehicles wit
ehicles wit h 360° Camer
h 360° Camer a:
a:the front image is
activated aTer appr ox. eight seconds.
R V
Vehicles wit
ehicles wit h AIRMA
h AIRMATIC:
TIC:theve hicle is raised
to the maximum possible chassis
le ve l(/ page 269).
If rising take s lon gerth an 25 seconds, thefo l-
lowing message appears onthe multifunction
displa y:
Preparation for car wash incomplete See
media display . ATer some time, theve hicle
automatically continues rising. 372 372
Main
tenance and ca re

R
V
Vehicles wit
ehicles wit h E-A
h E-ACTIVE BOD
CTIVE BOD Y C
Y CONTR
ONTR OL:
OL:the
ve hicle is raised tothe maximum possible
ch assis le vel(/ page 277).
If rising take s lon gerth an 25 seconds, thefo l-
lowing message appears onthe multifunction
display:
Preparation for car wash incomplete See
media display . ATer some time, theve hicle
automatically continues rising.
If one of the settings cannot be selected, this is
displa yedby a% behind there specti veset-
ting.
Ab ove a speed of 20 km/h Car wash mode is
automatically deacti vated.
The following settings are reset when car wash
mode is deacti vated:
R The outside mir rors are folded out.
R The rain sensor is activated.
R The rear wind owwiper is activated.
R The air conditioning system is set tofresh air
mode. R
Parking Assist PARKTRONIC is reset tothe
pr ev iously selected setting.
R The windo wsand the sliding sunroof remain
closed.
R Mer
Mer cedes-Ma cedes-Ma ybac
ybach v
h vehicles:
ehicles: theru nning
boa rdsre main retracted.
R V
Vehicles wit
ehicles wit h 360° Camer
h 360° Camer a:
a:the front image is
deactivated at speeds abo ve18 km/h.
R V
Vehicles wit
ehicles wit h AIRMA
h AIRMATIC:
TIC:theve hicle is lo wered
to the pr eviously set chassis le vel.
R V
Vehicles wit
ehicles wit h E-A
h E-ACTIVE BOD
CTIVE BOD Y C
Y CONTR
ONTR OL:
OL:the
ve hicle is lo weredto the pr eviously set chassis
le ve l. A
A ctiv
ctiv ating/deactiv
ating/deactiv ating aut
ating automatic car w
omatic car w ash mode
ash mode R
R eq
eq uir
uir ements:
ements:
R theve hicle is stationar y.
R the engine is running. Multimedia system:
4 © 5
Settings 5
Quick access
A
A ctiv
ctiv ating aut
ating aut omatic car w
omatic car w ash mode
ash mode #
Select Car wash mode . #
Select Start.
If one of the settings cannot be selected, this is
displa yedby a% behind there specti veset-
ting.
% For an overview of the settings made when
activating automatic car wash mode
(/ page 371).
Deactiv
Deactiv ating aut ating aut omatic car w
omatic car w ash mode
ash mode #
Select Stop.
The automatic car wash settings are reset.
% The automatic car wash mode is automatically
deacti vated as soon as a speed of 20 km/h is
ex ceeded. Main
tenance and ca re
373
373

T
T
o
o w
w -st
-st ar
ar ting or to
ting or towing away
wing away Ov
Ov
er
ervie
vie w of t
w of t he per
he per mitt
mittedto
ed towing met
wing met hods (not
hods (not
plug-in h
plug-in h ybr
ybrid)
id) *
N
NOOTE
TE Damage from automatic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer tain
situations:
R Active Brake Assist R
Active Distance Assist DISTRONIC
R HOLD function
R Active Parking Assist
To avoid damage totheve hicle, deactivate
th ese systems in thefo llowing or similar situa-
tions: #
during towing #
in a car wash Mercedes-Benz
recommends transporting your
ve hicle in the case of a breakdown, rather than
to wing it away.
Fo rto wing, use a tow rope or tow bar with bo th
axles on thegr ound. Do not use tow bar systems.
* N
NOOTE
TE Damage totheve hicle due to tow-
ing awa y incor rectly #
Obser vethe inst ructions and no tes on
to wing away. P
P
er
er mitt
mitt edto
ed towing met
wing met hods
hods V
V
ehicle eq
ehicle eq uipment/to
uipment/to wing met
wing method
hod Bot
Bot
h axles on t
h axles on t hegr
he ground
ound F
F
r
ront axle r
ont axle r aised
aised R
R
ear axle r
ear axle r aised
aised
4MATIC vehicles Yes, maximum 50 km at 50 km/h No No
Ve hicles with rear wheel driv eYes, maximum 50 km at 50 km/h No Yes, if the steering wheel is /xed in
th e centre position with a steering
wheel loc k. Breakd
own assistance
393
393

T
T
o
o wing awa
wing away t
y the v
he v ehicle wit
ehicle wit h bot
h both axles on t
h axles on t he
he
gr
gr ound
ound #
Obser vethe no tes on the permitted towing
me thods (/ page 393). #
Make sure that the battery is connected and
ch arge d.
A dischar ged battery has thefo llowing e.ects:
R theve hicle cann otbe switched on
R the electric parking brake cannot be released
or applied
R the transmission cannot be shiTed toposition
i orj
% Ifth e transmission cannot be shiTed toposi-
tion i, or the multifunction display in the
inst rument clus ter does not show anything,
th eve hicle must be transpor tedaway
( / page 395). A towing vehicle with liTing
equipment is requ ired forve hicle transpor ta-
tion. *
N
NO OTE
TE Damage due to towing away at
ex cessively high speeds or over long dis-
ta nces The driv
etra in could be damaged when towing
at excessively high speeds or over long distan-
ces. #
Atowing speed of 50 km/h must not be
ex ceeded. #
Atowing dis tance of 50 km must not be
ex ceeded. &
W
WARNING
ARNING Risk of accident when towing a
ve hicle which is too heavy
If th eve hicle tobe tow- star ted or towe daway
is heavier than the permissible gross mass of
yo ur vehicle, thefo llowing situations can
occur:
R theto wing eye may become de tach ed.
R theve hicle/trailer combination may
swer veorove rturn. #
Before tow- starting or towing away,
ch eck if theve hicle tobe tow- star ted or to
we dawa yex ceeds the permissible
gr oss mass. #
Information on the permissible gross mass of
th eve hicle can be found on theve hicle identi-
/cation plate (/ page 423). #
Do not open the driver's door or front
passenger door as the transmission may oth-
erwise shiT toposition jautomaticall y. #
Fitth eto wing eye (/ page 397). #
Fasten theto wing device.
* N
NOOTE
TE Damage due toincor rect connec-
tion of theto w bar #
Only connect theto w rope or tow bar to
th eto wing eyes. %
You can also attach theto w bar tothe trailer
hitch. #
Deactivate the automatic locking mechanism
(/ page 87). #
Do not activate the HOLD function. 394
394
Breakdown assistance

#
Deactivate tow- awa y protection
(/ page 107). #
Deactivate Active Brake Assist (/ page 258).#
ShiT the transmission toposition i
(/ page 210). #
Release the electric parking brake. &
W
WARNING
ARNING Risk of accident due tolimited
saf ety-re lated functions during theto wing
process
Saf ety-re lated functions are limited or no lon-
ge rav ailable in thefo llowing situations:
R theve hicle is switched o..
R the brake system or po wer steering system
is malfunctioning.
R the energy supply or the on-board electri-
cal system is malfunctioning.
When your vehicle is towe daw ay, signi/cantly
more e.ort may be requ ired tosteer and
brake than is normally requ ired. #
Use a tow bar. #
Make sure that the steering wheel can
mo vefreely be fore towing theve hicle
awa y. *
N
NO
OTE
TE Damage due toexcessive tractive
po wer If
yo u pull away sharpl y,the tractive po wer
may be too high and theve hicles could be
damaged. #
Pull away slo wlyand smoo thly. Loading t
Loading t
he v
he vehicle f
ehicle f or tr
or transport
anspo rt #
Obser vethe no tes on towing away
( / page 394). #
Connect theto wing device totheto wing eye
in order toload theve hicle.
% You can also attach theto w bar tothe trailer
hitch. #
ShiT the automatic transmission toposition
i. %
The automatic transmission may be loc ked in
position jintheev ent of damage tothe
electrics. ToshiT toi , pr ovide the on-board
electrical system with po wer (/ page 391). #
Load theve hicle onto the transpor ter. #
ShiT the automatic transmission toposition
j. #
Use the electric parking brake tosecure the
ve hicle against rolling away. #
Only secure theve hicle bythe wheels.
V
V ehicles wit
ehicles wit h ADS PL
h ADS PLUS (A
US (Adap
daptiv
tive Dam
e Dam ping Sy
ping Sy s-
s-
t
t em PL
em PL US)
US) &
W
WARNING
ARNING Risk of an accident when trans-
porting vehicles with Adaptive Damping
System PLUS
When transpo rting vehicles with Adaptive
Damping System PLUS, theve hicle/trailer
combination may begin torock and start to
skid. #
Load theve hicle cor rectly onto the
transpor ter. Breakd
own assistance
395
395

*
N
N O
OTE
TE Damage tocomponents of theve hi-
cle body or chassis due to/tted snow
ch ains If
yo u /t snow chains tothe front wheels of
4MATIC vehicles, you may damage compo-
nents of theve hicle body or chassis. #
Only /t snow chains tothere ar wheels
of 4MATIC vehicles. R
Snow chains are only permissible for cer tain
wheel/tyre combinations. You can obtain
information about this from a Mercedes-Benz
Service Centre.
R For saf etyre asons, only use snow chains that
ha ve been speci/cally appr ovedfo ryo ur vehi-
cle byMercedes-Benz, or snow chains with
th e same quality standard.
R Comply with the installation inst ructions of the
snow chain manu facturer.
R If snow chains are /tted, the maximum per-
missible speed is 50 km/h. R
V Vehicles wit ehicles wit h A
h Activ
ctiv e P
e Par
arking Assist
king Assist: :do not use
Ac tive Parking Assist when snow chains are
/tted.
% You can permanently limit the maximum
speed for driving with winter tyres
(/ page 241).
% You can deactivate ESP ®
to pull away
( / page 234). This allo ws the wheels tospin,
achieving an increased driving forc e. T
T
yr
yr e pr
e pr essure
essure N
No
ot
tes on tyr
es on tyr e pr
e pressure
essure &
W
WARNING
ARNING Risk of accident due toinsu1-
cient or excessive tyre pressure
Un derin0a tedorove rin0ated ty res pose in par-
ticular thefo llowing risks:
R The tyres can burst.
R The tyres can wearexcessively and/or
une venly. R
The driving characteristics as well as the
stee ring and braking characteristics may
be greatly impaired. #
Comply with there commended tyre
pressure and check the tyre pressure of
all tyres, including the spare wheel, regu-
lar ly:
R monthly
R when the load changes
R before embarking on a lon ger journey
R if operating conditions change, e.g. o.-
ro ad driving #
Adjust the tyre pressure, if necessar y. Ty
re pressure which is too high or too low can:
R Shor tenth e service life of the tyres.
R Cause increased tyre damage.
R Adve rsely a.ect driving characteristics and
th us driving saf ety, e.g. due toaquaplaning. Wheels and tyres
401
401

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Á
Please reduce speed *Y
ou are driving toofast forth e selected vehicle le vel. #
Drive more slo wlyand then select the desired vehicle le vel again.
Yo u are driving tooqu ickly with a trailer or the trailer hitch soc ket is being used, e.g. for a rear cycle rack. #
Read the no tes on trailer operation.
Á Compressor is cooling *D
uetofrequent le velch anges within a short space of time, the compressor /rst needs tocool down in order toset the
selected vehicle le vel.
When the compressor has cooled down, theve hicle will continue rising tothe selected vehicle le vel. #
Drive on in a manner appropriate forth e cur rent le vel. Make sure that there is su1cient ground clearance.
Cannot reach selected
level when rear fog lamp is
switched on *Y
ou cannot select o.-road le vel +3. #
Switch o. there ar fog lamp.
Parking Assist and
PARKTRONIC inoperative
See Owner's Manual *V
Vehicles wit ehicles wit h A
h Activ
ctiv e P
e Par
arking Assist
king Assist: :Ac tive Parking Assist and Parking Assist PARKTRONIC are malfunctioning.
V
V ehicles wit
ehicles wit hout A
hout Activ
ctive P
e Par
arking Assist
king Assist: :Pa rking Assist PARKTRONIC is malfunctioning. #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message still appears, consult a quali/ed specialist workshop. 486
486
Displ
aymessages and warning/indicator lamps

W
W
ar
ar ning and indicat
ning and indicat or lam
or lamps
ps Ov
Ov
er
ervie
vie w of indicat
w of indicat or and w
or and war
arning lam
ning lam ps
ps Some systems will per
form a self-test when the
ve hicle is switched on. Some indicator and warn-
ing lamps may brie0y light up or 0ash. This beha v-
iour is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or 0as haTer theve hicle has been star ted or dur-
ing a journe y.
Ins
Ins tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown. Indicat
Indicat
or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 505)
ü Seat belt (/ page 505)
ï Trailer hitch (/ page 506)
Ù Powe r steering (/ page 506)
ÿ Coolanttemp erature (/ page 508)
; Engine diagnostics (/ page 508)
p V
V ehicles wit
ehicles wit h a pe
h a petr
trol engine:
ol engine: engine
operating temp erature (/ page 508)
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 508)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 508)
! Electric parking brake (red)
(/page 511)
! Electric parking brake (yellow)
(/page 511)
J Brakes (yellow) (/ page 511)
J Brakes (red) (/ page 511)
L Distancewarning (/ page 513) Ó
Active Brake Assist (/ page 513)
ê Active Brake Assist (/ page 513)
ä AIRMATIC / E- ACTIVE BODY CON-
TROL (/ page 513)
! ABS (/page 515)
÷ ESP®
(/ page 515)
å ESP®
OFF (/ page 515)
h Tyre pressure monitoring system
(/ page 517)
T Standing lights (/ page 160)
L Low beam (/ page 160)
K High beam (/ page 162)
#! Turn signal lights (/ page 162)
R Rear fog light (/ page 160) 504 504
Display message
s andwarning/indicator lamps