door lock MERCEDES-BENZ GL SUV 2012 User Guide

Do not expose the child restraint system to
direct sunlight. Parts of the child restraint sys-
tem could heat up and the child could burn
herself/h imselfonthem.
If ac hild opens adoor, th echild or other per-
sons coul dbeinjured as aresult. They could
get out and injure themselves or be injured by
ap assing vehicle.
Also observe the notes on HOLD .Relevant
information can be foun dinthe index.
Child- proof locks for the rear doors You secure each door individually with the
child-proof locks on the rear doors.
Adoor
secured with achild-proof lock can notbe
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
X To activate: press the child-proof lock
leve rdown in the direction of arrow ;.
X Make sure that the child-proof lock sare
workin gproperly.
X To deactivate: press thechild-proof lock
lever up in the direction of arrow :.Overrid
efeature for the rear side win-
dows X
To activate/deactivate: press button:.
If indicator lamp ;is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driv-
er' sd oor. If indicator lamp ;is off ,oper-
ation is possible using the switches in the
rear compart ment. Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y pag e61)
R BAS (Brake AssistSystem) (Y page62)
R BAS PLUS ( BrakeAssist System Plus)
(Y pag e62)
R COLLISION PREVENTION ASSIST
(Y pag e63)
R Adaptive brak elamps (Y page 65)
R ESP ®
(Electronic StabilityProgram)
(Y page 66)
R EBD ( Electronic Brake force Distribution)
(Y page 68)
R ADAPTIVE BRAKE (Y page 68)
R PRE-SAFE ®
Brake (Y page 68)
R STEE RCONTROL (Y page 70)60
Driving safety systemsSafety

Anti-
thefts ystems Im
mo biliser
X To activate wit hthe ke y:remove the key
from the ignition lock.
X To activat ewith KEYLESS-GO: switch the
ignitio noff and open th edriver's door.
X To deactivate: switch on the ignition.
Th eimmobil iser prev ents you rvehicle from
being star tedw ithout the correct key.
When leaving the vehicle, always take the key
with you and lock the vehicle. Anyone can
start the engin eifavalid key has been left
inside the vehicle.
i The immobiliser is alway sdeactiva ted
when you start the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYL ESS-GO.
Indicator lamp :flashes .The alar msys-
tem is primed after approximately
15 seco nds.
X To switch of fwith the key: unlock the
vehicle using the key.
or
X Inser tthe key int othe ignition lock.
X To switch of fwith KEYLESS-GO: unlock
the vehicle using KEYL ESS-GO.
or
X Pres sthe Start/Stop button on the dash-
board. The key must be insid ethe vehicle. Av
isual and audible alarm is triggered if the
alarm system is prime dand you ope n:
R ad oor
R the vehicle with the emergency key ele-
ment
R the tailgate
R the bonnet
X To turn th ealarmo ff wit hthe ke y:press
the % or& button on the key.
Th ea larm is switche doff.
or
X Insert the key into the ignition lock.
Th ea larm is switche doff.
X To sto pthe alarm using KEYLESS-GO:
gras pthe outside door handle. The key
must be outside th evehicle.
The alar misswitched off.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is switched off.
The alarm is not switched off ,even if you
close the open door that ha striggered it, for
example. Tow
-away protection
Function An audible and visual alarm is trigge
redify our
vehicle' sangle of inclination is altered while
tow-away protection is primed. Thi scan occur
if the vehicle is jacked up on one side, for
example.
Activating X
Make sure that: Anti-theft systems
71Safety Z

R
the doors are closed.
R the tailgate is closed.
Onl ythen is the tow-away protection
primed.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-awa yprotectio nisprimedafter
approximately 60 seconds.
Switchin goff X
To switc hoff wit hkey: unlock the vehicle
with the key.
or
X Insert the key into the ignition lock.
Tow-awa yprotectio nisswitched off auto-
matically.
X To switch off with KEYLESS-GO: unlock
the vehicle with KEYLESS-GO.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
Tow-awa yprotectio nisswitched off auto-
matically.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-awa yprotectio nisdeactivated. Tow-away protec
tion remains deactivated
until:
R the vehicle is unlocked again and
R ad ooriso peneda nd closed agai nand
R the vehicl eislocked again.
To prevent afalse alarm, deactivate the tow-
away protection if yo uloc ky ourv ehicle and
it:
R is being transported
R is being loaded onto aferry or car trans-
porter, for example
R is parked on amovable surface, e.g. in a
split-level garage. Interio
rmotion sensor
Function When the interior motion sensor is primed, a
visual and audible alarm is triggered if move-
ment is detected in the vehicle interior
.This
can occur if someon ereaches into the vehicle
interior, for example.
Activating X
Make sure that:
R
the side windows are closed.
R the hinged side windows are closed.
R the sliding sunroof/panorama sliding
sunroof is closed.
R there are no objects, e.g. mascots, hang-
ing on the rear-view mirror or on the grab
handles on the roof trim.
This will prevent false alarms.
X Make sure that: 72
Anti-theft systemsSafety

R
the sliding sunroof/panorama sliding
sunroo fisclosed.
R the doors are closed.
R the tailgate is closed.
Only then is the interior motion sensor
primed.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is primed after
approximately 30 seconds.
Switching off X
To switch off with the key: unlock the
vehicle using the key.
or
X Insert the key into the ignition lock.
The interior motion sensor is switched off
automatically.
X To switch off with KEYLESS-GO: unlock
the vehicle using KEYLESS-GO.
or
X Press the Star t/Stopbutton on the dash-
board. The key must be inside the vehicle.
The interior motion senso riss witched off
automatically.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;flashes briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is deactivated. The interior motion sensor remains deactiva-
ted until:
R
the vehicle is unlocked agai nand
R ad ooriso peneda nd closed agai nand
R the vehicl eislocked again.
To prevent afalse alarm, deactivate the inte-
rio rm otion sensor if you lock your vehicle
and:
R people or animals remain in the vehicle.
R the side window sremai nopen.
R ah inged side window remains open.
R the sliding sunroof/panoram asliding sun-
roof remains open.
i UK only: your vehicle is equipped with a
double lock func tion. The doors can notbe
opened from the inside if the vehicle has
been locked with the key or with KEYLESS-
GO. Deac tivate the interior motion sensor
before you lock the vehicle .The doors can
then be opened from the insid eafter the
vehicl ehas been locked from the outside.
Observe the "Importan tsafety notes"
(Y page 82). Anti-thef
tsystems
73Safety Z

Usefu
linfor mati on
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variation sare pos-
sible. Note that your vehicl emay not be
equippe dwith all of the function sdescri-
bed. This is also the case for system sand
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page25). Key
Impo
rtantsafety notes G
WARNING
Only for the Unite dKingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children ,elderly peo-
ple or people requirin gspecial assistance. As
ar esult, they may not be able to free them-
selves in the even tofanemergency. They
could be seriously or eve nfatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res-
cuing peopl efrom outsid ethe vehicle is diffi-
cult.
Deac tivate th einterior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicl ehas
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could: R
open adoor from inside the vehicle at any
time, even if it has been locked
R star tthe vehicle usin gakey which has been
left in the vehicle
R release the electric parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Alway stake the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. G
WARNING
If ak ey rin gistoo heavy or too large, the
weight actin gonthe key coul dcause it to turn
in the ignition lock or catc honthe steering
wheel. This coul dcause the engine to be
switched off suddenly. You may lose control
of the vehicle and cause an accident. Do not
attac hany heavy or large key rings to the key
that is inserted in the ignition.
R Do not keep the key:
-electronic devices, e.g. amobile phone
or anothe rkey
- metallic objects, e.g. coins or metal film
- metallic objects, e.g. ametal case.
This can affect the key' sfunctionality.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder. Otherwise,
the KEYLESS-GO key will not be detected.
Keep the key away from strong magnetic
fields. Otherwise, the remot econtrol function
coul dbea ffected. 76
KeyOpenin
gand closing

Key functions
:
& To loc kthe vehicle
; F To open/close the tailgate
= % To unlock the vehicle
X To unlock centrally: press the%but-
ton.
If you do not open the vehicle within
approximatel y40seconds of unlocking:
R the vehicle is locked again.
R the anti-theft system is primed again.
X To lock centrally: press the&button.
The key centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap
When unlocking, the tur nsignals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y page 283).
When it is dark, the surroun dlighting also
comes on if it is activated in the on-board
computer (Y page 282). KEYLESS-GO
Genera lnotes Bear in mind that the engine can be started
by any of the vehicle occupants if there is a
KEYL ESS-GO key in the vehicle. Locking and unlockin
gcentrally You can start, lock or unlock the vehicle using
KEYL
ESS-GO .Todot his, you only need carry
the key with you. When you touc hthe surface
of the sensor sonthe vehicle' soutside door
handles ,KEYLESS-GO establishes aradio
connection between the vehicle and the key.
When the engine is started and whils tyou are
driving, KEYLESS -GOa lso check swhether a
valid key is in the vehicle by periodically
establishin gradio contact.
You can combine the KEYLESS-GO functions
with the functions of aconventional key.
Unlock the vehicle by using KEYLESS -GO, for
instance, and lock it usin gthe & button on
the key.
When locking or unlocking with KEYL ESS-GO,
the distance between the key and the corre-
sponding doo rhandle must not be greater
than 1m. X
To unlock the vehicl e:touch the inner
surface of the doo rhandle.
X To lock the vehicle: touch sensorsur-
face :.
X Convenience closing featu re:touch
recessed sensor surface ;for an exten-
ded period.
Further information on the convenience clos-
ing feature (Y page 90).
If you pull on the handl eofthe tailgate, only
the luggage compartmen tofthe vehicle is
unlocked. Key
77Opening and closing Z

Changing th
esettings of th elocking
system
You can chang ethe settings of th elocking
system. This mea nsthat only the driver' sdoor
and th efuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
X To change th esetting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery chec klamp flashes twice
(Y page 79).
i If the settin gofthe locki ngsystem is
changed within th esignal range of th evehi-
cle ,pressi ngthe & or% button:
R locks or
R unlock sthe vehicle
The ke ynow functions as follows:
X To unloc kthe drive r'sdoor: press the
% button once.
X To unlock cen trally:pressthe % but-
to nt wice.
X To lock centrally: pressthe & button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock th edriver's doo r:touch the
inner surface of the doo rhandle on the
driver' sdoor.
X To unlock centrally: touch theinner sur-
fac eo fthe door handle on th efront-
passenger door or th erear door.
X To lock centrally: touch theouter sensor
surface on one of the door handles
(Y page 77).
X To restor ethe facto rysettings: press
and hold down the %and& buttons
simulta neousl yfor appr oximate ly six sec-
onds until th ebatter ychec klamp flashes
twic e(Ypage 79). Emergency key element
General notes If th
evehicle can no longer be locke dor
unloc kedw itht he key ,use th eemergency
key element.
If yo uuse th eemergenc ykey elemen tto
unlock and open the driver' sdoor, the anti-
thef talarm system will be triggered
(Y page 71).
There are several ways to tur noff th ealarm:
X To turn the alarm off with the key: press
the % or& buttonont he key.
or
X Insert the key int othe ignition lock.
or
X To deactivat ethe alarm with KEYLESS-
GO: press th eStart/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler fla pwilln ot be
unlocked automatically.
X To unlock th efuel fil lerf lap: insert the
key into the ignition lock.
Removing the emergency key element :
Releas ecatch
; Emergency key element 78
KeyOpening and closing

Problems wit
hthe key Problem Possible causes/consequences and
M Solutions
Yo
uc annot lock or
unlock the vehicle
using the key. The key battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the key. Point the tip of the key at the driver' sdoor
handl efrom close rang eand pres sthe % or& button.
If this does not work:
X Chec kthe key battery (Y page 79)and replace it if necessary
(Y pag e79).
X Lock (Y page84) or unlock (Y page85) the vehicl eusing
the emergenc ykey element. The key is faulty.
X
Loc k(Ypage 84 )orunlock (Y page85) the vehicl eusing
the emergenc ykey element.
X Hav ethe key chec kedataq ualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. There is interference from
apowerfu lsource of radio waves.
X Lock/unloc kthe vehicle usin gthe remote con trol func tion of
the key. Point the tip of the key at the driver' sdoor handl efrom
close rang eand pres sthe % or& button. There is
afault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver' sdoor handl efrom
close rang eand pres sthe % or& button.
X Hav eKEYLESS-GO checked at aqualified specialist workshop.
If this does not work:
X Check the key battery (Y page 79) and replace it if necessary
(Y page 79).
X Lock (Y page 84) or unlock (Y page 85) the vehicle using
the emergency key element. You have lost
akey. X
Hav ethe key deactivated at aqualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Key
81Openin gand closing Z

Problem Possible causes/consequences and
M Solutions
The engin
ecannot be
started using the key. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting ,and try to start the engine again.
If this doe snot work:
X Check the starter battery and charge it if necessary
(Y page 384).
or
X Jump-start the vehicle (Y page 386).
or
X Consult aqualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key can notb ed etected as easily.
X Close the door and tr ytostart the vehicle again. There is interferenc
efrom apowerfu lsource of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only fo rthe Unite dKingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock func tion is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leav eany people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance .As
ar esult, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposur etoextremely hig horlow
tempera tures, for example. In this case ,res-
cuin gpeople from outside the vehicle is diffi-
cult.
Deac tivate the interior motion sensor before
you lock the vehicle .The doors can then be
opened from the insid eafter the vehicl ehas
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R star tthe vehicle usin gakey which has been
left in the vehicle
R release the electric parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Alway stake the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. Unlocking and opening th
edoors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked.
If the vehicle has been locked with the key or
with KEYLESS -GO, opening adoor from the
inside will trigger the anti-thef talarm system.
Switch off the alarm (Y page 71).82
DoorsOpening and closing

United Kingdom only:
if the vehiclehas
been locked with the key or with KEYLESS-
GO, the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. Deactivate the
interior motion sensor (Y page 72) before you
lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside .The anti-theft
alar msystem is triggered if the doo ris
opened from the inside. Swit choff the alarm
(Y page 71).
You can only open the rea rdoors from inside
the vehicle if they ar enot secured by the
child-proof lock s(Ypage 60). X
Pull door handle ;.
If the door is locked, locking knob :pops
up. The door is unloc keda nd can be
opened. Centr
ally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. The buttons are located on
both fron tdoors. :
To unlock
; To lock
X To unlock: press button :.
X To lock: press button ;.
If the front-passenger door is closed, the
vehicle locks.
Meanwhile, the fuel filler fla pwill not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the key or KEYL ESS-GO.
For all countries except the United King-
dom: you can ope nadoor from inside the
vehicle even if it has been locked.
Unite dKingdom only: if the vehicle has
been locked with the key or with KEYL ESS-
GO, the double lock function is activate das
standard. It is then not possible to open the
door sfrom insid ethe vehicle. Deac tivate the
interior motion sensor (Y page 72) before you
lock the vehicle .The doors can then be
opened from the insid eafter th evehicle has
been locked from the outside.
If the vehicle has been locked using the lock-
ing button for the central locki ng,orh as been
locked automatically, and adoor is opened
from the inside:
R the vehicle will be fully unlocked if it had
previously been fully unlocked.
R only the door which has been opened from
the inside is unlocked if only the driver's
door had been previously unlocked. Doors
83Opening and closing Z