2012 MERCEDES-BENZ G-Class light

anti-theft alarm system will be triggered
(Y page 57).
X
To end the alarm: insert the key into the
ignition lock.
Removing the mechanical key X
Push release catch : in the direction of
the arrow and at the same time, remove
mechanical key ; from the SmartKey.SmartKey battery
Important safety notes Have the batteries changed at a qualified
specialist workshop.
G
WARNING
Batteries contain toxic substances.
Swallowing batteries can lead to serious
health issues or death.
Keep batteries out of the reach of children.
Seek medical attention immediately if a
battery is swallowed. G
WARNING
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Observe
government disposal guidelines. California
residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm. Checking the battery
X
Press the & or % button.
The SmartKey
battery is working properly if
battery check lamp : lights up briefly.
If battery check lamp : does not light up
briefly during the test, the SmartKey battery
is discharged.
X Replace the SmartKey battery
(Y page 62).
i You can

obtain a SmartKey battery at any
authorized Mercedes-Benz Center.
i If the SmartKey battery is checked within
the signal range of the vehicle, pressing the
& or % button closes or opens the
vehicle.
Changing the battery You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the
SmartKey (Y page 61). X
Press mechanical key ; into the opening
in the SmartKey in the direction of the 62
SmartKey
Opening/closing

Problems with the SmartKey
Problem Possible causes/consequences and
M Solutions
You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Point the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or
lock the vehicle again.
If this does not work:
X Check the SmartKey battery and replace it if necessary
(Y page 62).
X Lock or unlock the vehicle using the mechanical key
(Y page 66). The SmartKey is faulty.
X
Lock or unlock the vehicle using the mechanical key
( Y page 66).
X Have the SmartKey checked at a qualified specialist workshop. You have lost a
SmartKey. X
Have the SmartKey canceled at an authorized Mercedes-Benz
Center.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The SmartKey cannot
be
turned

in the ignition
lock. The SmartKey has been in position
0
for a considerable time.
X Remove the SmartKey and reinsert it into the ignition lock.
X Check the battery and charge it if necessary ( Y page 231).
X Start the engine. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to turn the SmartKey again.
If this does not work:
X Check the battery and charge it if necessary ( Y page 231).
or
X Jump-start the vehicle (Y page 233).
or
X Consult a qualified specialist workshop.64
SmartKey
Opening/closing

Doors
Important safety notes
G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system,
and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartment unless they are firmly secured
in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident Unlocking and opening doors from
inside
You can

open a door anytime from inside the
vehicle even if it has been locked, unless the
child-proof locks (Y page 52) have been
activated.
If the vehicle has previously been locked with
the SmartKey, opening a door from the inside
will trigger the anti-theft alarm system.
Switch off the alarm (Y page 57). X
Front doors:
pull door handle
;.
If the

door is locked, locking knob : pops
up. The door is unlocked and can be
opened.
X Rear doors: pull

locking knob : upwards.
The door is unlocked.
X Pull door handle ;. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the

inside. This feature may be useful if,
for example, you wish to unlock the front-
passenger door from the inside or lock the
vehicle before you pull away.
The central locking button does not lock or
unlock the fuel filler flap.
i You cannot unlock the vehicle centrally
from the inside if the vehicle has been
locked from the outside using the
SmartKey. Doors
65
Opening/closing Z

X
Take mechanical key ; out of the
SmartKey (Y page 61).
X Insert mechanical key ; into the lock of
the driver's door as far as it will go.
X Turn mechanical key ; clockwise
as far as
it will go to position 1.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the tailgate
are locked.
i If you

lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Cargo compartment
Important safety notes
Do not leave the SmartKey in the cargo
compartment. Otherwise, you could lock
yourself out. G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system,

and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartment unless they are firmly secured
in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident Cargo compartment
67
Opening/closing Z

Sliding sunroof
Important safety notes
G
WARNING
Children could injure themselves if they
operate the sliding sunroof.
Do not leave children unsupervised in the
vehicle. Always take the SmartKey with you
when leaving
the vehicle, even if you are only
leaving it for a short time. G
WARNING
When closing the sliding sunroof, make sure
that there is no danger of anyone being
harmed by the closing procedure.
The opening procedure of the sliding sunroof
can be immediately halted by releasing the
sunroof switch or, if the sunroof switch was
moved past

the resistance point and released,
by moving the sunroof switch in any direction.
The closing procedure of the sliding sunroof
can be immediately halted by releasing the
sliding sunroof switch. The closing procedure
of the sliding sunroof can be immediately
reversed by moving the sliding sunroof switch
toward : or ?.
If you are not wearing a seat belt, or are not
wearing it correctly, there is a risk that you
could be thrown through the opening in the
event of the vehicle overturning. An opening
of this kind poses a risk of injury even to
passengers who are wearing their seat belts
correctly, as parts of the body could protrude
from the vehicle interior.
! Only open the sliding sunroof if it is free
of snow and ice. Otherwise, malfunctions
may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
! If the sliding sunroof still cannot be
opened or closed as a result of a
malfunction, contact a qualified specialist
workshop. !
The weather

can change abruptly. It could
start to rain or snow. Make sure that the
sliding sunroof is closed when you leave the
vehicle. The vehicle electronics can be
damaged if water enters the vehicle
interior.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window slightly to reduce or
eliminate these noises. Opening and closing the sliding
sunroof
Overhead control panel
:
To raise
; To lower
= To close
? To open
X Turn
the SmartKey to position
1 or
2
in the
ignition lock.
X Press or pull the 2 switch in the
corresponding direction.
i If you press the 2 switch beyond the
point of resistance while opening, an
automatic opening process is started. You
can stop

automatic operation by operating
the switch again. 70
Sliding sunroof
Opening/closing

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please
note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 20). Correct driver's seat position
Observe the safety guidelines on
(

Y page 75).
X Check whether you have adjusted seat =
properly.
Electrical seat adjustment ( Y page 76).
When adjusting the seat, make sure:
R you are as far away from the driver's air
bag as possible.
R you are sitting in a normal upright
position. R
you can fasten the seat belt properly.
R you have moved the backrest to an
almost vertical position.
R you have set the seat cushion angle so
that your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted properly (Y

page 77).
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint.
Observe the safety guidelines on
(Y page 75).
X Check whether steering wheel : is
adjusted properly.
Adjusting the steering wheel electrically
(Y page 82).
When adjusting the steering wheel, make
sure:
R you can

hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrument cluster clearly.
Observe the safety guidelines on
(Y page 41).
X Check whether you have fastened seat
belt ; properly (Y

page 43).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your
shoulder
R be routed in your pelvic area across the
hip joints
X Before starting off, adjust the rear-view
mirror and the exterior mirrors
(Y page 84) in such a way that you have
a good view of road and traffic conditions.
X Vehicles with a memory function: save
the seat,

steering wheel and exterior mirror
settings ( Y page 85).74
Correct driver's seat position
Seats, steering wheel and mirrors

Seats
Important safety notes
G
WARNING
In order to avoid possible loss of vehicle
control, all seat, head restraint, steering
wheel and rear view mirror adjustments, as
well as fastening of seat belts, must be done
before setting the vehicle in motion. G
WARNING
Do not adjust the driver's seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never travel
in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. This could cause serious or
fatal injuries. The seat backrest and seat belts
provide the best restraint when the wearer is
in a position that is as upright as possible and
seat belts are properly positioned on the
body. G
WARNING
Your seat belt must be adjusted so that you
can correctly fasten your seat belt.
Observe the following points:
R adjust the

seat backrest until your arms are
slightly angled when holding the steering
wheel.
R adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The
position should be as far back as possible
with the driver still able to operate the
controls properly.
R adjust the head restraint so that it is as
close to the head as possible and the center of the head restraint supports the back of
the head at eye level.
R never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
WARNING
The electrically adjustable seats can be
operated at

any time. Therefore, do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child's
unsupervised access to a vehicle could result
in an accident and/or serious personal injury. G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than

on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint. G
WARNING
For your protection, drive only with properly
positioned head restraints.
Adjust the

head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of an
accident or similar situation. Seats
75
Seats, steering wheel and mirrors
Z

Backrest angle
X
Slide the button forwards or back in the
direction of arrow ;.
Seat height X
Slide the button up or down in the direction
of arrow A.
Seat cushion angle Adjust the seat cushion angle so that your
thighs are lightly supported.
X
Slide the button up or down in the direction
of arrow ?.
Head restraint height X
Slide the button up or down in the direction
of arrow :.
i For further information on head
restraints, see (Y page 77).
i You can store the seat settings using the
memory function ( Y page 85).Adjusting the head restraints
Important safety notes G
WARNING
For safety reasons, always drive with the rear
head restraints in the upright position when
the rear seats are occupied.
Keep the
area around head restraints clear of
articles (e.g. clothing) to not obstruct the
folding operation of the head restraints. G
WARNING
For your protection, drive only with properly
positioned head restraints.
Adjust the

head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for injury to the head and neck in the event of an
accident or similar situation.
Do
not

drive the vehicle without the seat head
restraints. Head restraints are intended to
help reduce injuries during an accident.
Adjusting the front seat head restraint
height The button is located on the door control
panel.
X
Slide head restraint adjustment button :
up or down in the direction of the arrow.
Adjusting the front seat head restraint
angle G
WARNING
Vehicles with Rear Seat Entertainment
System: When adjusting the head restraint,
make sure

your fingers do not become caught
between the head restraint cushion and the
monitor. Failing to do so may lead to injury. Seats
77
Seats, steering wheel and mirrors Z