2021 MERCEDES-BENZ GLS SUV warning light

Symbols
Symbols
.......................................................... 5 5A
A
t a glance
t a glance ...................................................... 6 6
Co ckpit ........................................................... 6
Indicator and warning lamps .......................... 10
Overhead control panel ................................. 12
Door operating unit and seat adjustment .......14
Control settings in there ar passen ger
compartment ................................................ 16
Emer gencies and breakdowns ....................... 18 Digit Digit
al Owner's Manual
al Owner's Manual ................................. 20 20
Calling up the Digital Owner's Manual ............ 20 Gener
Gener
al not
al notes
es............................................... 22 22
Pr otection of the environment ....................... 22
Ta ke -back of end-of-life vehicles .................... 22
Mercedes-Benz Genuine Parts ........................ 23
Owner's Manual ............................................ 24
Mercedes me App ......................................... 24
Operating saf ety ............................................ 25
Declarations of con form ity and no tes on
driving in di.erent countries .......................... 26 Diagnostics connection ................................. 35
Quali/ed specialist
workshop ........................ 36
Ve hicle registration ....................................... 36
Cor rect use of theve hicle ............................. 37
Information on the REACH regulation ............. 37
No tesfo r persons with electronic medical
aids .............................................................. 37
Implied warranty .......................................... .38
QR code forre scue card .............................. .38
Data storage .................................................38
Copyright ...................................................... 41 Occupant safe Occupant safe
ty
ty ............................................ 42 42
Re straint system .......................................... .42
Seat belts .................................................... .44
Airbags ......................................................... 48
PRE-SAFE ®
system ........................................ 55
Au tomatic measures aTer an accident ........... 57
Safely transporting children in theve hicle ...... 57
No tes on pets in theve hicle .......................... 80 Opening and closing
Opening and closing
...................................... 81 81
Ke y .............................................................. .81
Doors ............................................................ 84 Ru
nning boa rds ............................................. 89
Load compartment ....................................... .90
Side windo ws................................................ 96
Sliding sunroof .............................................. 99
Ro ller sunblinds ...........................................1 04
Anti-theT pr otection ....................................1 05 Seats and sto Seats and sto
wing
wing....................................... 108 108
No tes on the cor rect driver's seat position .. 108
Seats ......................................................... .108
St eering wheel ............................................ 127
Easy entry and exitfeature .......................... 129
Memory function ......................................... 130
Memory function in there ar compartment .. 131
St owa geareas ............................................ 135
Cup holde rs................................................ 150
Soc kets ....................................................... 152
Coolb ox...................................................... 154
Wi reless charging of the mobile phone
and connection with theex terior aerial ........ 155
Fi tting/removing the 0oor mats ................... 158 Light and sight Light and sight
............................................ 160 160
Exterior lighting ........................................... 160 2
2
Contents

1
Steering wheel gearshiT paddles →
211
2 Combination switch →
162
3 Instrument displ ay →
309
4 DIRECT SELECT le ver →
209
5 Media display →
315
6 Climate control systems →
179
7 £ Hazard warning light system →
162
8 PASSENGER AIR BAG indicator la mps→
53
9 Glovecompartment →
138
A Stow age compartment →
138
B 8 Controller forvo lume and switching
sound on/o. →
315
Ü Switches the MBUX multimedia system
on/o. →
315
C z Calls up navigation →
317
D | Calls up radio or media →
317
E % Calls up thete lephone →
317 F
Switch panel for:
ä Individual wheel cont rol (vehicles without
o.- road pac kage ) or →
277
+ Transfer case (vehicles with o.-road
pac kage) →
213
p Manual gearshiTing →
211
¿ AIRMATIC or →
267
¿ E-AC TIVE BODY CONTROL →
273
å Activating/deactivating ESP ®
→
232
î Downhill Speed Regulation →
249
G ß Calls up favo urites →
317
H y Calls up vehicle functions →
317
I c Active Parking Assist →
293
J DYNAMIC SELECT switch →
207
K Touchpad →
317
L Start/stop but ton →
191
è ECO start/s top function →
202 At
a glance – Cockpit
7
7

1
#! Turn signal lights →
162
2 ï Trailer hitch →
506
3 6 Restraint system →
505
4 å ESP®
OFF →
515
÷ ESP®
→
515
5 R Rear fog light →
161
6 K High beam →
162
L Low beam →
160
T Standing lights →
160
7 ÿ Coolant temp erature →
508
8 Coolant temp erature display →
309
9 ! Electric parking brake (yellow) →
511
A J Brakes (yellow) →
511
B L Distance warning →
513 C
# Electrical fault →
508
D Ù Powe r steering →
506
E ! ABS →
515
F h Tyre pressure monitoring system →
517
G % Diesel engine: preglow
H 8 Reser vefuel wi thfuel /ller 0ap location
indicator →
508
I Fuel le vel →
309
J ! Electric parking brake (red) →
511
K J Brakes (red) →
511
L ü Seat belt →
505
M ; Engine diagnostics →
508
N ä Suspension (red) →
513
ä Suspension (yellow) →
513 At
a glance – Indicator and warning lamps
11
11

1
B-pillar wi th:
QR code for accessing there scue card →
38
2 Safetyve sts →
380
3 Fire extinguisher →
381
4 ; me button →
340
G SOS button →
340
5 £ Hazard warning light system →
162
6 Tocheck and top up operating 0uids →
425
St arting assis tance →
391
7 Tow- starting or towing away →
394 8
Flat tyre →
382
9 Tow- starting or towing away →
394
A Fuel /ller 0ap with:
information label on fuel type →
216
information label on tyre pressure →
402
QR code for accessing there scue card →
38
B Warning triangle →
380
C TIREFIT kit →
384
D Firs t-aid kit (soT sided) →
381 At
a glance – Emer gencies and breakdowns
19
19

R
R
es
estr traint syst
aint syst em functionality
em functionality When
theve hicle is switched on, a self-test is per-
fo rm ed, during which the6 restraint system
wa rning lamp lights up. It goes out no later than a
few seconds aTer theve hicle is star ted. The com-
ponents of there straint system are then func-
tional. Malfunctioning r
Malfunctioning r
es
estr traint syst
aint syst em
em A malfunction has occur
red in there straint sys-
te m if:
R the6 restraint system warning lamp does
not light up when theve hicle is switched on
R the6 restraint system warning lamp lights
up continuously or repeatedly during a journey &
W WARNING ARNING Risk of inju rydue tomalfunc-
tions in there straint system
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as
intended in an accident. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. F
F
unction of t
unction of t he r
he res
estr
traint syst
aint syst em in an accident
em in an accident How
there straint system works depends on the
se verity of the impact de tected and the apparent
type of accident:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere straint system are de term ined based on the
ev aluation of the sensor values measured at vari-
ous points in theve hicle. This process is pre-e mp-
tive in nature. The triggering/deployment of the
components of there straint system must take
place in good time at the start of the collision.
Fa ctors which can only be seen and measured
aTer a collision has occur red cannot play a deci- sive
role in airbag deployment. Nor do they pro-
vide an indication of airbag deployment.
The vehicle may be deformed signi/cantly without
an airbag being deplo yed. This is the case if only
parts which are relatively easily deformed are
a.ec tedand thera te of vehicle deceleration is
not high. Con versely, an airbag may be depl oyed
ev en though theve hicle su.ers only minor defor-
mation. If very rigid vehicle parts such as longitu-
dinal membe rsare hit, this may result in su1-
ciently high le vels of vehicle deceleration.
Depending on the de tected deployment situation,
th e components of there straint system can be
acti vated or deplo yed independently of each
ot her:
R Seat belt tensioner: frontal impact, rear
impact, side impact, rollo ver
R Driver's airbag, front passenger airbag: frontal
impact
R Knee airbag: frontal impact
R Side airbag: side impact
R Window airbag: side impact, rollo ver,frontal
impact Occupant sa
fety
43 43

F
F
unction of t
unction of t he P
he PASSEN
ASSEN GER AIR BA
GER AIR BAG indicat
G indicat or
or
lam
lam ps
ps Self-t
Self-t
es
est of autt of aut omatic fr
omatic fr ont passeng
ont passeng er airbag shut-
er airbag shut-
o.
o. When theve hicle is switched on, a self-test is per-
fo rm ed during which the two PASSENGER AIR
BAG ON and OFF indicator la mps light up simul ta-
neous ly. The status of
the front passenger airbag is dis-
pla yed via thePA SSENGER AIR BAG indicator
la mp s aTer the self-test:
R ON is lit:
ON is lit: the front passenger airbag may
deploy during an accident.
The indicator lamp goes out aTer 60 seconds.
R ON and OFF ar ON and OFF ar e no
e not lit:
t lit: the front passenger
airbag may deploy during an accident.
R OFF is lit:
OFF is lit: the front passenger airbag is disa-
bled. It will then not be deplo yed in theev ent
of an accident.
If th ePA SSENGER AIR BAG ON indicator la mpis
o., only thePA SSENGER AIR BAG OFF indicator
la mp shows th e status of the front passenger air-
bag. The PASSENGER AIR BAG OFF indicator la mp
may be lit continuously or be o..
If th ePA SSENGER AIR BAG OFF indicator la mp
and the6 restraint system warning lamp light
up simultaneousl y,the front passenger seat may
not be used. Also in this case, do not /t a child
re straint system tothe front passenger seat. Ha ve
th e automatic front passenger airbag shuto. ch
ecked and repaired immediately at a quali/ed
specialist workshop.
S
S t
tatus display
atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that the sta-
tus of the front passenger airbag is cor rect forthe
cur rent situation.
ATer
ATer /tting
/tting a r
a rearw
earw ar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::PA SSENGER AIR
BAG OFF must be lit continuous ly. &
W
WARNI NG
ARNI NGRisk of injury or dea thwhen
using a rear wa rd-facing child restraint sys-
te m while the front passenger airbag is
enabled
If yo u secure a child in a rear wa rd-facing child
re straint system on the front passenger seat
and thePA SSENGER AIR BAG OFF indicator
la mp is o., the front passenger airbag can
deploy in theev ent of an accident.
The child could be struck bythe airbag. Occupant saf
ety
53
53

R
PRE-SAFE ®
Sound: pr ovided that the multime-
dia system is switched on, generating a brief
noise signal tostimula tethe innate pr otective
mechanism of a person's hearing.
* N
NOOTE
TE Damage caused byobjects in the
fo ot we ll or behind the seat The automatic adjustment of
the seat position
may result in damage tothe seat and/or the
object. #
Stow objects in a suitable place. R
R
e
ev
ver
er sing t
sing t he PRE-S
he PRE-S AFE
AFE®
®
syst
syst em measur
em measur es
es If an accident did not occur,
the pre-em ptive
measures that we re ta ken are reve rsed.
Yo u will need toper form certain settings yourself. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. F
F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
PL
PL US (anticipat
US (anticipat or
ory occu-
y occu-
pant pr ot
pant pr otection plus)
ection plus) PRE-SAFE
®
PLUS can de tect cer tain impacts, par-
ticular lyan imminent rear impact, and take pre-
em ptive measures toprotect theve hicle occu-
pants. These measures cann otnecessarily pre-
ve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher 0ashing frequency.
R Increasing brake pressure when theve hicle is
stationar y.This brake application is cancelled
automatically when theve hicle pulls away.
If an accident did not occur, the pre-em ptive
measures that we re ta ken are reve rsed.
Syst
Syst em limits
em limits
The system will not initiate any action in thefo l-
lowing situations:
R when reve rsing or
R when theve hicle is towing a trailer and there
is a risk of a rear impact
The system will not initiate any braking application
in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space while
using Active Parking Assist F F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
Im
Im pulse Side
pulse Side If an imminent side impact is de
tected, PRE-
SA FE®
Impulse Side can pre-em ptively mo vethe
front seat vehicle occupant's upper body towa rds
th e centre of theve hicle. It does this by rapidly
in0ating an air cushion in the outer seat side bol-
ster of the seat backrest on the side on which the
impact is anticipated. This increases the distance
between the door and theve hicle occupant.
If PRE-SAFE ®
Impulse Side has been deplo yed or
is faulty, thePRE-SAFE impulse side inoperative 56
56
Occupant saf
ety

See Owner's Manual(/
page 443) display mes-
sage appears. A
A
ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident
Depending on the type and se verity of the acci-
dent, and depending on theve hicle's equipment,
th efo llowing measures can be implemented, for
ex ample:
R automatic braking (post-collision brake)
R activating the hazard warning lights
R triggering an automatic emer gency call
(/ page 351)
R switching o. the engine
To start theve hicle again, switch theve hicle
o. and on once more (/ page 191). Depend-
ing on the type and se verity of the accident,
yo u may no longer be able tostart theve hicle.
R switching o. the fuel supply
R unlocking theve hicle doors
R lowe ring the side windo ws
R displaying the emer gency guide in the multi-
media system display R
switching on the interior lighting
F
F unction of t
unction of t he pos
he post-collision brt-collision br ake
ake
Depending on the accident situation, the post-col-
lision brake can minimise the se verity of a fur ther
collision or evenavo id it.
If an accident is de tected, the post-collision brake
can implement automatic braking. When theve hi-
cle has come toa standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking bytaking
th efo llowing actions:
R braking more strongly than automatic braking
R fully depressing the accelerator pedal with
fo rce Saf Saf
el
ely try tr anspor
anspor ting c
ting childr
hildren in t
en in t he v
he vehicle
ehicle Alw
ay
Alw ays observ
s observ e when c
e when c hildr
hildren ar
en ar e trav
e tr avelling in t
elling in t he
he
v
v ehicle
ehicle %
Also strictly obser vethe saf ety no tesfo rthe
speci/c situation. In this wa yyo u can recog-
nise po tential risks and avoid dangers if chil- dren are tr
avelling in theve hicle
(/ page 58).
Be dilig
Be dilig ent
ent
Bear in mind that negligence when securing a
ch ild in thech ild restraint system ma y haveseri-
ous conse quences. Alw ays be dili gent in securing
a ch ild carefully before every journe y.
Ne ver allow babies and children totrave l sitting
on the lap of ano ther vehicle occupant.
To impr oveprotection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obser vethefo l-
lowing information:
R Always secure thech ild in a child restraint sys-
te m suitable forth is Mercedes-Benz vehicle.
R The child restraint system must be appropria te
to the age, weight and size of thech ild.
R The vehicle seat must be suitable for /tting a
ch ild restraint system (/ page 62).
Ac cident statistics show that children secured on
th ere ar seats are generally sa ferth an children
secured on the front seats. Forth is reason, Occupant saf
ety
57 57