2012 MERCEDES-BENZ GL SUV key

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 mation .............................. 76
Key ....................................................... 76
Doors .................................................... 82
Luggage comp artment....................... 85
Side windows ...................................... 89
Sliding sunroof .................................... 93 75Opening and closing

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

X
Push release cat ch: in the direction of
the arrow and at the same time, remove
emergenc ykey element ;from the key. Ba
ttery of the key
Important safety notes G
WARNING
Batteries are toxic and contain caustic sub-
stances. For this reason, keep batteries out of
the reach of children.
If ab attery has been swallowed, visit adoctor
immediately. H
Environment
alnote Bat
teri es contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collec teds ep-
arately and disposed of in an
environmen tally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner
.Take discharged
batteries to aqualified spe-
cialist workshop or to acol-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have
the batteries replaced at aqualified specialist
workshop. Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharge difbattery check
lamp :does not light up briefly.
X Change the battery (Y page 79).
i If the key battery is checked within the
signal reception range of the vehicle, press-
ing the &or% button:
R locks or
R unlocks the vehicle
i You can get abattery at any qualified spe-
cialist workshop.
Replacing the battery You require
aCR20253Vc ell battery.
X Take the emergenc ykey elemen tout of the
key (Y page 78). :
Battery compartment cover
; Emergency key element Key
79Openin gand closing Z