ABS MERCEDES-BENZ GLS SUV 2020 Owners Manual

1
#! Turn signal lights →
15 8
2 ï Trailer hit ch →
493
3 6 Restra int sy stem →
492
4 å ESP®
OFF →
502
÷ ESP®
→
502
5 R Rear fog light →
157
6 K High beam →
15 8
L Low beam →
15 6
T Standing lights →
15 6
7 ÿ Coolant temp erature →
495
8 Coolant temp erature display →
305
9 ! Electric pa rking brake (yellow) →
498
A J Brakes (yellow) →
498
B L Distance warning →
500 C
# Electrical fault →
495
D Ù Powe rst eering →
493
E ! ABS →
502
F h Tyre pressure monitoring sy stem →
504
G % Diesel engine: preglow
H 8 Reser vefuel with fuel filler flap location
indicator →
495
I Fuel le vel →
305
J ! Electric parking brake (red) →
498
K J Brakes (red) →
498
L ü Seat belt →
492
M ; Engine diagnostics →
495
N ä Suspension (red) →
500
ä Suspension (yell ow) →
500 At
aglance – Indicator and warning lamps 11

#
Ifth ere is damage, consult a qualified
specialist workshop immediately. *
NO
TEDama getotheve hicle due todriv‐
ing toofast and due toimpacts tothe
ve hicle underbody or suspension compo‐
nents In
thefo llowing situations, in particular, there
is a risk of damage totheve hicle:
R theve hicle becomes grounded, e.g. on a
high kerb or an unpa vedro ad
R theve hicle is driven toofast over an
obs tacle, e.g. a kerb, speed bump or pot‐
hole
R a heavy object strike sth e underbody or
suspension components
In situations such as these, damage tothe
body, underbody, suspension components,
wheels or tyres may not be visible. Compo‐
nents damaged in this wa y can unexpec tedly
fa il or, in the case of an accident, may no lon‐
ge r absorb there sulting forc e as intended. If
th e underbody panelling is damaged, flam‐
mable materials such as lea ves, grass or
twigs can collect between the underbody and
th e underbody panelling. These materials
may ignite if they come into contact wi thhot
parts of theex haust sy stem. #
Have theve hicle checked and repaired
immediately at a qualified specialist
wo rkshop.
or #
If driving saf ety is impaired while con‐
tinuing your journe y,pull over and stop
th eve hicle immediatel y,while paying
attention toroad and traf fic conditions,
and contact a qualified specialist work‐
shop. Ve
hicles with a 48 V on-board electrical sys‐
te m (EQ Boo sttech nology) &
DANG ER Risk of fata l injury bytouching
damaged high-voltage co mponents
Ve hicles with a 48 V on-board electrical sys‐
te m contain individual high-voltage compo‐
nents. These high-voltage components are
under high voltage.
If yo u modify co mponent parts of these high-
vo ltage components or touch damaged com‐
ponent parts, you may be electrocuted.
High voltage components may be damaged
in an accident, although the damage may not
be visible. #
Never per form modifications tocompo‐
nent pa rts of high-voltage components. #
Neverto uch damaged co mponent parts
of high-voltage components. #
Neverto uch co mponent parts of high-
vo ltage components af ter an accident. General no
tes25

Te
ch nology Frequency rang eT ransmission output/magnetic field
st re ngth
Carsharing module NFC:
13
.553–13.567 MHz
Blue tooth:
24 02–2480 MHz NFC:
≤ 42 dBμA/m at
10 m
Blue tooth:
≤ + 4 dBm (po wer category 2)
Re ar Seat En tertainment Sy stem: Blue
tooth:
24 00–2483.5 MHz
WLAN 2.4 GHZ:
24 00–2483.5 MHz
WLAN 5 GHz:
51 50–5250 MHz
572 5–58 75MHz Blue
tooth:
-0.8 dBm
WLAN 2.4 GHZ:
14 .5 dBm
WLAN 5 GHz:
20.5 dBm
13 .3 dBm In
fo rm ation about the specific absor ption
rate
Fo rFr ance on ly: The
values weredeterm ined and tested in
accordance with the Décre t n° 2019-118 6guide‐
line rega rding the indication of the specific absor
ption rate (SAR) of wireless vehicle compo‐
nents. General no
tes29

U Suitable
forch ild restra int sy stems of the "Univer‐
sal" category in this we ight categor y.
L Suitable for semi-universal child restra int sy stems
according totheta ble in "Recommended child
re stra int sy stems", or if theve hicle and the seat are
lis ted in thech ild restrai nt sy stem manufacturer's
ve hicle model list. Re
ar seats (third seat row)
We ight category 0: up to10 kg
Left/right rear seat U, L
We ight category 0+: up to13 kg
Left/right rear seat U, L
We ight category I: 9 to18 kg
Left/right rear seat U, L
We ight category II: 15to25 kg
Left/right rear seat U, L We
ight category III: 22 to36 kg
Left/right rear seat U, L
U Suitable forch ild restra int sy stems of the "Univer‐
sal" category in this we ight categor y.
L Suitable for semi-universal child restrai nt sy stems
according totheta ble in "Recommended child
re strai nt sy stems", or if theve hicle and the seat are
lis ted in thech ild restra int sy stem manufacturer's
ve hicle model list. Mercedes-Maybach
vehicles with a reclining
re ar seat: the bottom and back of a forw ard-
fa cing child restra int sy stem must make full con‐
ta ct wi th there clining rear seat sitting sur face
and seat ba ckrest. The child restra int sy stem
must not touch thero of. Adjust the seat back‐
re st inclination accordingly. Also obser vethe
ch ild restra int sy stem manufacturer's ins tallation
instructions. Note
s onchild restra int sy stems on the front
passenger seat
R If it is absolutely necessary foryo uto fit a
ch ild restra int sy stem tothe front passenger
seat, be sure toobser vethe information on
ch ild restra int sy stems on the front
passenger seat (/ page74).
R Obser vethe specific instructions forthe
re ar wa rd-facing and forw ard-facing child
re stra int sy stems. If the front passenger seat
is occupied, ensure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect forth e cur rent
situation (/ page 50).
Fr ont passenger seat
We ight category 0: up to10 kg
Fr ont passenger airbag enabled 1
X
Fr ont passenger airbag disabled 1, 2
U, L
We ight category 0+: up to13 kg
Fr ont passenger airbag enabled 1
X 70
Occupant saf ety

Obser
vethe specific instructions forth ere ar‐
wa rd-facing and forw ard-facing child restra int
sy stems (/ page74). Wa
rning notice on the front passenger sun visor
Alw ays obser vethest atus of the front passenger
airbag on thePA SSENGER AIR BAG OFF indica‐
to r lamp:
R If it is absolutely necessary tofit a child
re stra int sy stem tothe front passenger seat,
alw ays obser vethe information on automatic
front passenger airbag shutoff (/ page 48).
R When using a rear wa rd-facing child restra int
sy stem on the front passenger seat, the front passenger airbag must alw
ays be disabled.
This is only the case if thePA SSENGER AIR
BA G OFF indicator lamp is lit continuously
(/ page 50).
R Ifth ePA SSENGER AIR BAG OFF indicator
lamp is off, the front passenger airbag is ena‐
bled. The front passenger airbag may deploy
during an accident.
Securing thech ild restra int sy stem with the
seat belt on the front passenger seat
When fitting a belt-secu redch ild restra int sys‐
te m on the front passenger seat, alw ays obser ve
th efo llowing:
O Obser
vethe no tes on rear wa rd-facing and
fo rw ard-facing child restra int sy stems on
th e front passenger seat (/ page73).
O Obser
vethech ild restra int sy stem manufac‐
turer's ins tallation and operating instruc‐
tions.
O Fo
r a child restra int sy stem in the "Univer‐
sal" or "Semi-Universal" categor y,make
sure that the sy stem has been appr ovedfor
th eve hicle seat. Obser
vethe no tes under "Suitability of
seats for attaching belt-secu redch ild
re stra int sy stems" (/ page 69).
O When using a
forw ard-facing child restra int
sy stem in weight category I: remo vethe
head restra int from there spective seat, if
possible.
Af terth ech ild restra int sy stem has been
re mo ved, replace the head restra ints again
immediately and adjust them cor rectl y.
O The backrest of
thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger seat.
O If
th e head restra int of thech ild seat cannot
be fully extended when it is ins talled in the
ve hicle, this will result in restrictions on the
maximum size setting forch ild restra int sys‐
te ms in weight category II or III.
Contact with thero of when the head
re stra int is fully extended and lo cked in
place will not result in any restrictions on
use. 74
Occupant saf ety

%
Further information about special all-ter rain
tyres forre trofitting can be ob tained from a
qu alified specialist workshop.
Off-road driving
Re ad this section before driving your vehicle off-
ro ad. Practise bydriving over more gentle off-
ro ad terrain firs t.
R Obse rveth e no tes on the cross-country ABS
(/ page 226).
R If necessar y,select theF orG drive
program (vehicles with an Off-road pac kage)
before driving off-road (/ page 203).
R Before driving off-road, shift the transfer
case totheLO W RANGE off-roadgear (vehi‐
cles with an Offroad pac kage ) (/ page 210).
R Select a vehicle le vel suitable for off-road ter‐
ra in (/ page 265). Toavo id damaging the
ve hicle, make sure there is alw ays suf ficient
ground clearance.
R Alw ayske ep the engine running and in gear
when driving on downhill gradients and
slopes. Obse rveth e no tes on driving in
mountainous terrain. R
Do not drive on unknown terrain that is not
easily visible and stay on mar kedro utes.
R Alw ayske ep the doors and windo wsclosed
while theve hicle is in motion.
R Deactivate Active Dis tance Assi st
DISTRONIC, cruise control and theva riable
limiter.
R Adapt your driving style to thete rrain.
R Do not use the HOLD function on steep
downhill or uphill gradients with slippery or
loose sur faces.
Driving on sand
When driving on sand, also obser vethefo llowing
instructions:
R Select theF drive program.
R Select a higher vehicle le vel.
R Shift toa lo werge ar.
R Drive quickly to overcome thero lling resist‐
ance, otherwise theve hicle may dig itself in.
R Drive in the trac ksofother vehicles if possi‐
ble. Make sure that thefo llowing prerequi‐
sites are me t: -
the tyre ruts are not too deep
- the sand is firm enough
- the ground clearance is suf ficient
Fo rding
Also obser vethefo llowing information when
fo rd ing:
R Drive no fasterthan 10 km/h.
R Obser vethe maximum permissible ford ing
dep th (/ page 428).
R Switch off automatic climate control
(/ page 176).
R Vehicles with stationary heater/ventila‐
tion: switch thest ationary heater/ ventilation
off (/ page 180).
R Ensu rethat a bow wave does not form asyou
drive.
R Do not stop in thewa ter and do not switch
off the engine. Ensure the ECO start/ stop
function is switched off (/ page198).
Driving in mountainous terrain 19 6
Driving and pa rking

Glide mode can also be pr
evented bythefo llow‐
ing parame ters:
R incline
R downhill gradient
R temp erature
R height
R speed
R operating status of the engine
R traffic situation Tr
ansfer case Fu
nction of the transfer case &
WARNING Risk of skidding and having
an accident when in LOW RANGE on slip‐
pery road sur faces
The wheels can block and thus lose traction
on slippery road sur faces, pa rticular lyin the
fo llowing situations:
R ifyo ure lease the accelera tor pedal when
th eve hicle is in motion.
R if off-road ABS inter venes when braking. #
Never select theLO W RANGE off-road
ge ar when driving on slippe ryroad sur‐
fa ces. &
WARNING Risk of accident when the
trans fer case is in neutral position
The vehicle may rollaw ay unin tentionally if
yo u do not wait until the transfer case shift
operation is comple te. #
Wait until the transfer case shift opera‐
tion is comple te. This function is only
available in vehicles with
Off-road pac kage.
Shift the transfer case tothe on-ro ad position
HIGH RANGE or intotheLO W RANGE off-road
ge ar.
Do not swit choff the engine during shift opera‐
tion and do not shift the automatic transmission
to ano ther position.
Shift ranges
R HIGH RANGE: Road position for all normal
on-road driving situations
R LOW RANGE: Off-roadgear for driving off-
ro ad, when ford ing and on steep uphill or
downhill inclines
Properties of theLO W RANGE off-road gear:
R reduced maximum permissible speed:
50 km/h
R increased tractive po wer Driving and pa
rking 209

%
The radar sensors are integ rated behind the
bumpers and/or behind the Mercedes star.
1 Cameras in the outside mir rors
2 Multifunction camera
3 Front camera
4 Ultrasonic sensors
5 Reversing camera &
WARNING Risk of accident due to
re stricted de tection per form ance of vehi‐
cle sensors and cameras
If th e area around vehicle sensors or cam‐
eras is co vered, damaged or dirty, cer tain
driving and saf ety sy stems cann otfunction
cor rectly. The reis a risk of an accident. #
Keep the area around vehicle sensors
or cameras clear of any obstructions
and clean. #
Have damage tothe bumper, radiator
grille or stone chipping in the area of
th e front and rear wind owsrepaired at
a qu alified specialist workshop. Pa
rticular ly,ke ep the areas around the sensors
and cameras free of dirt, ice or slush
(/ page 369). The sensors and cameras may
not be co vered and the de tection ranges around
th em must be kept free. Do not attach additional
license pla tebrac kets, ad vertisements, sticke rs,
fo ils or foils toprotect against stone chippings in
th e de tection range of the sensors and cameras. Make sure
that there are no overhanging loads
pr otru ding into the de tection range.
If th ere is damage toa bumper or thera diator
grille, or af ter an impact, ha vethe function of
th e sensors checked at a qualified specialist
wo rkshop. Ha vedamage or stone chipping in the
area of the cameras on the front and rear win‐
do ws repaired at a qualified specialist workshop. Overview of driving sy
stems and driving
saf ety sy stems R
ABS (Anti-lo ckBra king System)
(/ page 226)
R Off-road ABS (/ page 226)
R BAS (Bra keAssist System) (/ page 227)
R ESP ®
(Electronic Stability Program)
(/ page 227)
R ESP ®
Crosswind Assist (/ page 228)
R ESP ®
trailer stabilisation (/ page 228)
R EBD (Electronic Brakeforc eDistribution)
(/ page 230)
R STEER CONTROL (/ page 230) Driving and parking
225

R
HOLD function (/ page 230)
R Hill Start Assist (/ page 231)
R Adaptive Brake Lights (/ page 231)
R Start-off assist
R ATTENTION ASSIST (/ page 232)
R Cruise contro l (/page 233)
R Limiter (/ page 234)
R Traf fic Sign Assi st (/ page 255)
R Speed Limit Assist (count ry-dependent)
(/ page 253)
R AIRMATIC (/ page 262)
R E-AC TIVE BODY CONTROL (/ page 269)
R Trailer Manoeuv ring Assi st (/ page 293)
Driving Assistance pac kage
The following functions are part of the Driving
Assis tance Package. Cer tain functions are only
av ailable in some countries. Some functions are
also available without the Driving Assis tance
Pa ckage, albeit with restricted functionality.
R Active Dis tance Assi stDISTRONIC
(/ page 236) R
Active Speed Limit Assi st(countr y-depend‐
ent) (/ page241)
R Route-based speed adap tation (countr y-
dependent) (/ page242)
R DSR (Dow nhillSpeed Regulation)
(/ page 244)
R Active Brake Assi st (/ page 248)
R Active Steering Assist (count ry-dependent)
(/ page 246)
R Active Emergency Stop Assist (countr y-
dependent) (/ page248)
R Active Stop-and-Go Assist (countr y-depend‐
ent) (/ page243)
R Blind Spot Assist and Active Blind Spot Assi st
with exitwa rning (/ page 257)
R Active Lane Keeping Assist (/ page 260)
Pa rking Package
R Reversing camera (/ page277)
R 360° Camera ( /page 280)
R Parking Assist PARKTRONIC ( /page 283)
R Active Parking Assist (/ page 288) Fu
nction of ABS The Anti-lock Brake Sy
stem (ABS) regulates the
brake pressure in critical driving situations:
R During braking, e.g. at full brake application
or insuf ficient tyre traction, the wheels are
pr eve nted from lo cking.
R Vehicle steerability while braking is ensured.
If ABS inter venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditions and can ser veas a reminder totake
ex tra care while driving. Fu
nctions of Off-road ABS %
Off-road ABS is activated automatically when
you select theF orG drive program.
Off-road ABS is specially adap tedfo r driving off-
ro ad:
R The front wheels lock cyclically during brak‐
ing.
R The braking dis tance is sho rtened due tothe
digging-in ef fect. 226
Driving and pa rking

Sy
stem limits
R Off- road ABS functions at speeds below
40 km/h.
R If Off- road ABS inter venes, the ability tosteer
may be restricted. Fu
nction of BAS The Brake Assist Sy
stem (BAS) supports your
eme rgency braking situation with additional
brake forc e.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatically boosts the brake pres‐
sure.
R BAS can sho rten the braking dis tance.
R ABS pr events the wheels from locking.
The brakes will function as usual once you
re lease the brake pedal. BAS is deactivated. Fu
nctions of ESP ® &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ry
out vehicle stabilisation. #
ESP ®
should on lybe deactivated in the
fo llowing situations. *
NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The Electronic
Stability Program (ESP ®
) can
monitor and impr ovedriving stability and trac‐
tion in thefo llowing situations within ph ysical
limits:
R When pulling away on wet or slippe rycar ria‐
ge wa ys.
R When braking. If
th eve hicle deviates from the direction desired
by the driver, ESP ®
can stabilise theve hicle by
inter vening in thefo llowing ways:
R One or more wheels are braked.
R The engine output is adap ted according to
th e situation.
ESP ®
is deactivated if theå ESP®
OFF warn‐
ing lamp lights up continuously in the instrument
clus ter:
R Driving stability will no lon ger be impr oved.
R The drive wheels could spin.
R ETS/4ETS traction control is still active.
% When ESP ®
is deactivated, you are still assis‐
te dby ESP ®
when braking.
If th e÷ ESP®
wa rning lamp flashes in the
instrument clus ter,one or se veral wheels has
re ached its grip limit:
R Adapt your driving style to suit the cur rent
ro ad and weather conditions.
R Do not deactivate ESP ®
. Driving and parking
227