2020 MERCEDES-BENZ GLS SUV warning lights

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

te
m wa rning lamp lights up. It goes out no later
th an a few seconds af terth eve hicle is star ted.
The components of there stra int sy stem are then
functional. Malfunctioning
restra int sy stem A malfunction has occur
red in there stra int sys‐
te m if:
R the6 restra int sy stem warning lamp does
not light up when the ignition is switched on
R the6 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journey &
WARNING Risk of inju rydue tomalfunc‐
tions in there stra int sy stem
Components in there stra int sy stem may be
activated unintentionally or not deploy as
intended in an accident. #
Have there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop. Fu
nction of there stra int sy stem in an acci‐
dent How
there stra int sy stem works depends on the
se verity of the impact de tected and the apparent
type of acciden t:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of
th e components of there stra int sy stem must
ta ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measu red
af te r a collision has occur red cann otplay a deci‐
sive role in airbag deployment. Nor do they pro‐
vide an indication of airbag deployment.
The vehicle may be deformed significantly with‐
out an airbag being deplo yed. This is the case if only parts which are
relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an airbag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, this may
re sult in suf ficiently high le vels of vehicle decel‐
eration.
Depending on the de tected deployment situa‐
tion, the components of there stra int sy stem can
be activated 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: fron‐
talimpact
R Knee airbag: frontal impact
R Side airbag: side impact
R Window airbag: side impact, rollo ver,frontal
impact
R Cushionbag: frontal impact
R PRE-SAFE ®
Impulse Side: side impact 40
Occupant saf ety

and
the front passenger seat accord‐
ingly. #
Alw ays comply with thech ild restra int
sy stem manufacturer's ins tallation
instructions. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information (/ page73).
If a person is sitting on the front passenger
seat: PASSENGER AIR BAG OFF may be lit con‐
tinuously or be off, depending on the person's
st ature.
A person on the front passenger seat must
alw ays obser vethefo llowing information:
R Ifth e front passenger seat is occupied byan
adult or a person with a stature cor respond‐
ing tothat of an adult, thePA SSENGER AIR
BA G OFF indicator lamp must be off. This
indicates that the front passenger airbag is
enabled.
If th ePA SSENGER AIR BAG OFF indicator
lamp is lit continuousl y,an adult or person with a build cor
responding tothat of an adult
must not use the front passenger seat.
Ins tead, they should use a rear seat.
R Ifth e front passenger seat is occupied by a
person of smaller stature (e.g. a teenager or
small adult), thePA SSENGER AIR BAG OFF
indicator lamp either lights up continuously
or remains off, depending on the classifica‐
tion.
- Ifth ePA SSENGER AIR BAG OFF indicator
lamp is off: mo vethe front passenger
seat as far back as possible, or the per‐
son of smaller stature should use a rear
seat.
- Ifth ePA SSENGER AIR BAG OFF indicator
lamp is lit continuously: the person of
smaller stature should not use the front
passenger seat. &
WARNING Risk of inju ryor death when
th ePA SSENGER AIR BAG OFF indicator
lamp is lit
If th ePA SSENGER AIR BAG OFF indicator
lamp remains lit af terth e self-test, the front
passenger airbag is disabled.
If th e front passenger seat is occupied,
alw ays ensure that:
R The classification of the person in the
front passenger seat is cor rect and the
front passenger airbag is enabled or disa‐
bled in accordance with the person in the
front passenger seat.
R The person is sea ted proper lywith a cor‐
re ctly fastened seat belt.
R The front passenger seat has been mo ved
as far back as possible. Be sure
toalso obse rveth efo llowing fur ther
re lated subjects:
R Child restra int sy stem on the front passenger
seat (/ page73) 52
Occupant saf ety

R
Suitable positioning of thech ild restra int sys‐
te m (/ page 59) PRE-SAFE
®
sy stem PRE-
SAFE®
(anticipa tory occupant pr otec‐
tion) PRE-
SAFE®
is able todetect cer tain critical driv‐
ing situations and implement pre-em ptive meas‐
ures toprotect theve hicle occupants.
PRE-SAFE ®
can implement thefo llowing meas‐
ures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Closing the side windo ws.
R Vehicles with sliding sunroof: closethe
sliding sunroof.
R Vehicles with memory function: movethe
front passenger seat toa more favo urable
seat position.
R Vehicles with memory function in the
re ar comp artment: movethe outer rear
seats toa more favo urable seat position. R
Vehicles with multicontour seat: increase
th e air pressure in the seat side bols ters of
th e seat backrest.
R PRE-SAFE ®
Sound: pr ovided that the multi‐
media sy stem is switched on, generates a
brief noise signal tostimulate the innate pro‐
te ctive mechanism of a person's hea ring.
* NO
TEDama gecaused byobjects in the
fo ot we ll or behind the seat The automatic adjustment of
the seat posi‐
tion may result in damage tothe seat and/or
th e object. #
Stow objects in a suitable place. Re
versing the PRE- SAFE®
sy stem measures If an accident did not occur,
the pre-em ptive
measures that we retake n are reve rsed.
Yo u will need toper form certain settings your‐
self. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. Fu
nction of PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus) PRE-
SAFE®
PLUS can de tect cer tain impacts,
particular lyan imminent rear impact, and take
pre-em ptive measures toprotect theve hicle
occupants. These measures cannot necessarily
pr eve 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 flashing frequenc y.
R Increasing brake pressure when theve hicle
is stationar y.This brake application is cancel‐
led automatically when theve hicle pulls
aw ay. Occupant saf
ety53

If an accident did not occur,
the pre-em ptive
measures that we retake n are reve rsed.
Sy stem limits
The sy stem 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 sy stem will not initiate any braking applica‐
tion in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space
while using Active Parking Assist Fu
nction of PRE-SAFE ®
Impulse Side If an imminent side impact is de
tected, PRE-
SA FE®
Impulse Side can pre-emptively mo vethe
front seat vehicle occupant's upper body
to wa rdsth e cent reoftheve hicle. It does this by ra
pidly inflating an air cushion in the outer seat
side bols ter of the seat backrest on the side on
which the impact is anticipated. This increases
th e dis tance between the door and theve hicle
occupant.
If PRE-SAFE ®
Impulse Side has been deplo yed or
is faulty, thePRE-SAFE impulse side inoperative
See Owner's Manual( /page 434) display mes‐
sage appears. Au
tomatic measures af ter 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 implemen ted, for
ex ample:
R automatic braking (post-collision brake)
R activating the hazard warning lights
R triggering an automatic emer gency call
(/ page 344)
R switching off the engine
To restart theve hicle, switch the ignition off
and switch it back on (/ page188).
Depending on the type and se verity of the accident, it is possible
that theve hicle can
no longer be star ted.
R switching off 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 sy stem display
R switching on the interior lighting
Fu nction of the post-collision brake
Depending on the accident situation, the post-
collision brake can minimise the se verity of a fur‐
th er collision or even avo id it.
If an accident is de tected, the post-collision
brake can implement automatic braking. When
th eve hicle has come toast andstill, the electric
parking brake is automatically applied.
The driver can cancel automatic braking bytak‐
ing thefo llowing actions:
R braking more stronglythan automatic brak‐
ing
R fully depressing the accelera tor pedal with
fo rce 54
Occupant saf ety

Ad
justing the front passen ger seat electri‐
cally from the driver's seat &
WARNING Risk of inju ryor death due to
th e front seat being positioned too close
to the cockpit
The front airbags can also injure the occu‐
pants in the front of theve hicle. #
Alw ays adjust the front seats so they
are as faraw ay as possible from the
front airbags. #
In addition, obse rveth e no tes on cor‐
re ct seat adjustment. Re
quirements:
R The po wer supply is switched on. Yo
u can call up thefo llowing functions forthe
front passenger sea t:
R Seat adjustment
R Seat heating
R Seat ventilation
R Memory function #
Toselect the front passenger seat: press
button 1.
When the indicator lamp lights up, the front
passenger seat is selected. #
Adjust the front passenger seat using the
buttons on the driver's side door operating
unit. #
Toselect the driver's seat: press button1
again.
When the indicator lamp goes out, the driv‐
er's seat has been selected. 108
Seats and stowing

Switches
thest eering wheel heater on or off Re
quirements:
R The ignition is switched on. #
Toswitch on: pushthe switch toposition
1.
The indicator lamp 3lights up. #
Toswitch off: pushthe switch toposition
2.
Indicator lamp 3goes out.
When you swit ch the ignition off, thesteering
wheel heater switches off. Easy entry and
exitfeature Using
the easy entry and exitfeature &
WARNING Risk of accident when pulling
aw ay during the adjustment process for
th e easy exitfeature
Yo u could lose cont rol of theve hicle. #
Alw ayswa it until the adjustment proc‐
ess is comple tebefore pulling away. &
WARNING Risk of becoming trapped
du ring adjustment of the easy entry and
ex itfeature
Yo u and other vehicle occupants – particu‐
lar lych ildren – could become trapped. #
Ensure that no one has a body part in
th e sweep of thesteering wheel or driv‐
er's seat.
If th ere is a risk of becoming trapped bythe
st eering wheel: #
Movethe adjustment le ver of thesteer‐
ing wheel.
The adjustment process will be stop‐
ped.
If th ere is a risk of becoming trapped bythe
driver's seat: #
Press the seat adjustment switch.
The adjustment process will be stop‐
ped. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. Yo
u can stop the adjustment process bypress‐
ing one of the memory function position
switches. 12 6
Seats and stowing

#
Insert the plug of the device into 230 V
soc ket1.
When the on-board electrical sy stem voltage
is suf ficient, indicator la mp2lights up. Overview of USB ports
Depending on
theve hicle equipment, theve hicle
has thefo llowing USB ports:
R inthestow age compartment of the cockpit
armrest (/ page134)
R inthe front cent reconsole next tothe mobile
phone stowage compartment
R inthere ar centre console
R vehicles with Rear Comfort Package: in the
centre armrest of the second row of seats in
th ere ar compartment
R Mercedes-Maybach vehicles with 5 seats in
th ere ar compartment: in the cent rearmrest
in there ar compartment
R Mercedes-Maybach vehicles with individual
re ar seats: in the cent reconsole of there ar
compartment R
vehicles with thre erow s of seats: totheright
and left next tothe seat
If th e ignition is switched on you can charge USB
devices, e.g. mobile phones, at USB ports. The
ch arging voltage is appr oximately 5 V (up to
3 A). Coolb
ox Using
there frigerator box &
WARNING Risk offire due toa co vered
ve ntilation grille on the coolbox
If yo u co verth eve ntilation grille forth e cool‐
box, it may overheat. #
Alw ays make sure that theve ntilation
grille is not co vered. The
ventilation grille forth ere frigerator box is in
th e boot.
This equipment is available on lyfor Mercedes-
Maybach vehicles.
Subject there frigerator box toa maximum load
of 3.5 kg. St
ore only plastic bottles in the upper compart‐
ment of there frigerator box. The contents of the
bottle must be no more than 0.5 lit res.
I f yo u do not need touse there frigerator box for
an extended pe riod, switch it off, defrost it and
clean it. Af ter doing so, lea vethe lid open for a
time.
The refrigerator box will reduce its cooling capa‐
city or switch off in thefo llowing cases:
R too many electrical consumers are turned
on.
R thest ar ter battery is not suf ficiently charge d.
If th is is the case, the indicator lamps will flash
on the button for switching there frigerator box
on and off. The cooling function will auto mati‐
cally switch back on as soon as there is suf fi‐
cient voltage.
% Toinstallth ere frigerator box in the load
compartment or remo veit, please con tact a
qu alified specialist workshop. 15 0
Seats and stowing