2019 MERCEDES-BENZ GLS SUV child lock

C
California Important notice for retail cus-
tomers and lessees .......................... 28
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................ .330
Car wash ........................................ 326
Carpets .......................................... 333
Display .......................................... .331
Exhaust pipe .................................. 331
Exterior lights ................................ 330
Gear or selector lever .................... 332
Interior .......................................... .331
Matte finish ................................... 328
Notes ............................................. 326
Paint .............................................. 328
Plastic trim ................................... .332
Power washer ................................ 327
Rear view camera .......................... 330
Roof lining ...................................... 333
Seat belt ........................................ 333
Seat cover ..................................... 332
Sensors ......................................... 330
Side running board ........................ 330
Steering wheel ............................... 332
Trim pieces ................................... .332
Washing by hand ........................... 327
Wheels .......................................... .329
Windows ........................................ 329
Wiper blades .................................. 329
Wooden trim .................................. 332
Cargo compartment cover
Notes/how to use ......................... 301
Cargo compartment enlargement
Important safety notes .................. 298
Cargo compartment floor
Important safety notes .................. 302
Opening/closing ............................ 302
Stowage well (under) ..................... 302
Cargo tie down rings ......................... 300
CD
see also Digital Operator's Man-
ual ................................................. .287 CD player (on-board computer)
........236
Center console
Lower section .................................. 40
Upper section .................................. 39
Central locking
Automatic locking (on-board com-puter) ............................................. 241
Locking/unlocking (SmartKey) ....... .77
Child
Restraint system .............................. 61
Child seat
Forward-facing restraint system ...... 64
LATCH-type (ISOFIX) child seat
anchors ............................................ 62
On the front-passenger seat ............ 64
Rearward-facing restraint system .... 64
Top Tether ...................................... .63
Child-proof locks
Important safety notes .................... 64
Rear door s....................................... 65
Children
Special seat belt retractor ............... 60
Children in the vehicle
Important safety notes .................... 59
Cigarette lighter ................................ 307
Cleaning
Mirror turn signal ........................... 330
Trailer tow hitch ............................. 331
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 129
Automatic climate control (3-
zone) .............................................. 127
Controlling automaticall y............... 132
Cooling with air dehumidification .. 131
Defrosting the window s................. 134
Defrosting the windshield .............. 133
Dual-zone automatic climate con-
trol ................................................. 125
General notes ................................ 125
Indicator lamp ................................ 132
Ionization ....................................... 135
Maximum cooling .......................... 134
Notes on using the automatic cli-
mate control .................................. 131
Overview of systems ...................... 125 Index
7

Indicator and warning lamps
Active Distance Assist
DISTRONIC .................................... 285
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 322
Instrument cluster
Overview .......................................... 37
Warning and indicator lamps .......... .37
Instrument cluster lighting .............. 230
Intelligent Light System
Activating/deactivating ................ .240
Display message ............................ 257
Overview ........................................ 117
Interior lighting
Automatic control .......................... 120
Emergency lighting ........................ 120
General notes ................................ 119
Manual control ............................... 119
Overview ........................................ 119
Reading lamp ................................. 119
iPod ®
see also Digital Operator's Man-
ual ................................................. .287 J
Jack Storage location ............................ 335
Using ............................................. 374
Jump starting (engine) ......................343 K
Key positions KEYLESS-GO .................................. 140
SmartKey ....................................... 140
KEYLESS-GO
Activating ......................................... 78
Convenience closing feature ............ 91
Deactivation ..................................... 78
Display message ............................ 273
Locking ............................................ 78
Removing the Start/Stop button ... 141
Start function ................................... 79
Start/Stop button .......................... 140 Starting the engine ........................ 142
Unlocking ......................................... 78
Kickdown
Driving tips ................................... .151
Manual gearshifting ....................... 154
Knee bag .............................................. 50 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 239
Display message ............................ 264
Function/informatio n.................... 208
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 243
LATCH-type (ISOFIX) child seat
anchors ................................................ 62
Level control
AIRMATIC ...................................... 187
Level control (display message) ...... 262
Level control (vehicle with the Off-
Road Engineering package)
Basic settings ................................ 181
Function/note s............................. 180
Important safety notes .................. 180
License plate lamp (display mes-
sage) ................................................... 257
Light function, active
Display message ............................ 257
Light sensor (display message) ....... 257
Light switch
Operation ....................................... 115
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 240
Active light function ....................... 117
Adaptive Highbeam Assist ............. 118
Automatic headlamp mode ............ 115
Fog lamps (extended) .................... 118
Hazard warning lamps ................... 117
High beam flasher .......................... 116
High-beam headlamp s................... 116
Highway mod e............................... 118
Light switch ................................... 115
Low-beam headlamp s.................... 116
Off-road lights ................................ 118 Index
13

Panic alarm
X
To activate: press0033button 0043for at
least one second.
A visual and audible alarm is triggered if the
alarm system is armed.
X To deactivate: press0033button 0043again.
or X Insert the SmartKey into the ignition lock.
or X Press the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the vehicle. Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system includes the following com-
ponents:
R seat belt system
R air bags
R child restraint system
R child seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants:
R have fastened their seat belts correctly
(Y page 47)
R have the seat and head restraint adjusted
properly (Y page 97) As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (Y page 97).
You also have to make sure that an air bag can
inflate properly if deployed (Y page 49).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam- ple, if, in the event of an accident, the protectionoffered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par- ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against objects penetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" (Y page 56).
See "Children in the vehicle" for information on
children traveling with you in the vehicle as well
as on child restraint systems (Y page 59). Important safety notes
G
WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate a person with
disabilities, contact an authorized Mercedes-
Benz Center for details. USA only: for further
information contact our Customer Assistance
Center at 1-800 FOR-MERCEDES
(1‑800‑367‑6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz. 44
Occupant safetySafety

occupant in the best position in relation to the
air bag.
The seat belt system comprises:
R Seat belts
R Emergency Tensioning Devices for the front
seat belts and the outer seat belts in the sec- ond row of seats as well as the seat belts in
the third row
R Seat belt force limiters for the front seat belts
and the outer seat belts in the second row of
seats as well as the seat belts in the third row
If the seat belt is pulled out of the belt outlet
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be extrac-
ted any further.
The Emergency Tensioning Device tightens the
seat belt in an accident, pulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency Tensioning Device does not cor- rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helps to
reduce the force exerted by the seat belt on the vehicle occupant.
The seat belt force limiters for the front seats are
synchronized with the front air bags, which
absorb part of the deceleration force. This can
reduce the force exerted on the vehicle occu-
pants during an accident.
! If the front-passenger seat is not occupied,
do not engage the seat belt tongue in the
buckle on the front-passenger seat. Other-
wise, in addition to other systems, the Emer-
gency Tensioning Device could also be trig-
gered in the event of an accident and would
need to be replaced.
Important safety notes The use of seat belts and child restraint systems
is required by law in:
R all 50 states
R the U.S. territories
R the District of Columbia
R all Canadian provinces
Even where this is not required by law, all vehicle occupants should correctly fasten their seat
belts before starting the journey. G
WARNING
If the seat belt is not worn correctly, it cannot perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
Always ensure that all vehicle occupants have their seat belts fastened correctly and are sit- ting properly.
The components of the restraint system work in conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants:
R have fastened their seat belts correctly
(Y page 47)
R have the seat and head restraint adjusted
properly (Y page 97) G
WARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder. G
WARNING
Persons less than 5 ft (1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury. 46
Occupant safetySafety

In the following situation, the side impact air bag
and the Emergency Tensioning Device are deac-
tivated:
R OCS has not categorized the person on the
front-passenger seat as an adult or a person
of corresponding stature and
R the seat belt buckle tongue of the seat belt is
not inserted into the front-passenger seat belt buckle
Requirements To be classified correctly, the front passenger
must sit:
R with the seat belt fastened correctly
R in an almost upright position with their back
against the seat backrest
R with their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
R transfers their weight by supporting them-
selves on a vehicle armrest
R sits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. The entire base of the child restraint
system must always rest on the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation and operating
instructions. Occupant Classification System opera-
tion (OCS) 0043
PASSENGER AIR BAG ON indicator lamp
0044 PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
X Press the Start/Stop button once or twice, or
turn the SmartKey to position 0047or0048 in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul- taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
R PASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy in the event of an accident.
R PASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
If the status of the front-passenger front air bag
changes while the vehicle is in motion, an air bag display message appears in the instrument clus-
ter (Y page 255). When the front-passenger
seat is occupied, always pay attention to the
PASSENGER AIR BAG OFF indicator lamp. Be
aware of the status of the front-passenger front
air bag both before and during the journey. 52
Occupant safetySafety

If the seat belt pre-tensioning is not reduced:
X Move the seat backrest or seat back slightly
when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" (Y page 48).PRE-SAFE
®
PLUS (anticipatory occu-
pant protection system PLUS)
Introduction PRE-SAFE
®
PLUS is only available in vehicles
with the Driving Assistance PLUS package.
Using the radar sensor system, PRE-SAFE ®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE ®
PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes The intervention of PRE-SAFE
®
PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE ®
PLUS.
PRE-SAFE ®
PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space using Active Parking Assist, PRE-
SAFE ®
PLUS will not apply the brakes.
Function PRE-SAFE
®
PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision. PRE-SAFE
®
PLUS takes the following measures
depending on the hazardous situation detected:
R if the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
R if the radar sensor system detects that a rear-
end collision is imminent:
- the brake pressure is increased if the driver
applies the brakes when the vehicle is sta- tionary.
- the seat belts are pre-tensioned.
The PRE-SAFE ®
PLUS braking application is can-
celed:
R if the accelerator pedal is depressed when a
gear is engaged
R if the risk of a collision passes or is no longer
detected
R if Active Distance Assist DISTRONIC indicates
an intention to intervene
If the hazardous situation passes without result- ing in an accident, the original settings are
restored. Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
R the hazard warning lamps are switched on
R the emergency lighting is activated
R the vehicle doors are unlocked
R the front side windows are lowered
R vehicles with a memory function: the electri-
cally adjustable steering wheel is raised when
the driver's door is opened
R the engine is switched off and the fuel supply
is cut off
R vehicles with Mercedes me connect: auto-
matic emergency call Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install Children in the vehicle
59Safety Z

a child restraint system on a rear seat. Children
are generally better protected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle:
R always secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child.
R be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions.
R always observe the instructions and safety
notes on the "Occupant classification system (OCS)". (Y page 51) G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. G
WARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. G
WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
(Y page 46) and the notes on correct use of seat
belts (Y page 47).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
40 lbs (18 kg) until they reach a height where a
three-point seat belt can be properly fastened
without a booster seat. Special seatbelt retractor
G
WARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac- tor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with a special seat belt
retractor. When activated, the special seat belt
retractor ensures that the seat belt cannot
slacken once the child seat is secured.
Installing a child restraint system:
X Make sure you observe the child restraint
system manufacturer's installation instruc-
tions.
X Pull the seat belt smoothly from the belt out-
let.
X Engage seat belt tongue in belt buckle. 60
Children in the vehicleSafety

Non-LATCH-type (ISOFIX) child seats may also
be used and can be installed using the vehicle's seat belt system. Install the child seat according
to the manufacturer's instructions. Top Tether
Introduction Top Tether provides an additional connection
between the child restraint system secured with
a LATCH-type (ISOFIX) system and the vehicle.
This helps reduce the risk of injury even further.
If the child restraint system is equipped with a
Top Tether belt, this should always be used.
Important safety notes G
WARNING
If the rear seat backrests are not locked, they
could fold forwards in the event of an acci-
dent, heavy braking or sudden changes of
direction. As a result, child restraint systems
cannot perform their intended protective
function. Rear seat backrests that are not
locked can also cause additional injuries, e.g. in the event of an accident. This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrests after instal-
ling a Top Tether belt. Adjust the rear seat
backrests so that they are in an upright posi-
tion.
Make sure that the backrest in the rear com-
partment engages fully. To do so, pull firmly on
the seat backrest.
Top Tether anchorages The Top Tether anchorages for the second row
of seats are located on the rear of the seat
backrests. For the third row of seats, use the
cargo tie-down rings in the cargo compartment
floor.
X
Move head restraint 0087upwards
(Y page 100).
X Install the LATCH-type (ISOFIX) child restraint
system with Top Tether. Always comply with
the child restraint system manufacturer's
installation instructions when doing so.
X Route Top Tether belt 0084under head restraint
0087 between the two head restraint bars.
X Guide Top Tether belt 0084down between cargo
compartment cover 0043and seat backrest 0044.
X Hook Top Tether hook 0083of Top Tether belt
0084 into Top Tether anchorage 0085.
Make sure that:
R Top Tether hook 0083is hooked into Top
Tether anchorage 0085as shown.
R Top Tether belt 0084is not twisted.
R Top Tether belt 0084is routed between seat
backrest 0044and cargo compartment
cover 0043if cargo compartment cover 0043is
installed.
R Top Tether belt 0084is routed between seat
backrest 0044and the cargo net if the cargo
net is installed.
X Tension Top Tether belt 0084. Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
X Move head restraint 0087back down again
slightly if necessary (Y page 100). Make sure
that you do not interfere with the correct rout-
ing of Top Tether belt 0084. Children in the vehicle
63Safety Z