2013 MERCEDES-BENZ G-CLASS SUV key battery

Problems with the SmartKey
Problem Possible causes/consequences and
0050 SolutionsYou 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 ( Y
page 70) and replace it if
necessary ( Y page 71).
X Lock ( Y page 75) or unlock ( Y page 76) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Lock or unlock the vehicle using the mechanical key
(Y page 75).
X Have the SmartKey checked at a qualified specialist workshop. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
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.72
SmartKey
Opening/closing

Problem Possible causes/consequences and
0050 SolutionsThe engine cannot be
started using the
SmartKey. The SmartKey has been in position
0(Y page 139) for a
considerable time.
X Remove the SmartKey and reinsert it into the ignition lock.
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 307).
or
X Jump-start the vehicle (Y page 308).
or
X Consult a qualified specialist workshop. 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 Doors
73
Opening/closing Z

Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. 0043
To raise the backrest contour
0044 To soften the backrest contour
0087 To lower the backrest contour
0085 To harden the backrest contour Switching the seat heating on/off
General notes G
WARNING
Repeatedly setting the seat heating to level
3 may result in excessive seat temperatures.
The health of passengers that have limited
temperature sensitivity or a limited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3 repeatedly.
The red indicator lamps
in the button indicate
the heating level you have selected.
X Make sure that the SmartKey is in position
2 in the ignition lock.
i If the battery voltage is too low, the seat
heating may switch off.
One or more of the indicator lamps in the
seat heating button are flashing. Switching the front-seat heating on/off
X
To switch on: press button 0043 repeatedly
until the desired heating level is set.
X To switch off: press button 0043 repeatedly
until all the indicator lamps go out.
i The system automatically switches down
from level
3to level 2

after approximately 8
minutes.
The system automatically switches down
from level 2to level1 after approximately
10 minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
Switching the rear-seat heating on/off X
To switch on: press button 0043 repeatedly
until the desired heating level is set.
X To switch off: press button 0043 repeatedly
until all the indicator lamps go out.
i The system automatically switches down
from level
3to level 2

after approximately 8
minutes. Seats
89
Seats, steering wheel and mirrors Z

The system automatically switches down
from level 2to level1 after approximately
10 minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level
1.
Problems with the seat heating If the on-board voltage is too low, the seat
heating is switched off automatically.
X
Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
If the on-board voltage is only interrupted
briefly, the seat heating
will switch back on
automatically. If the seat heating is not
switched on automatically:
X Switch the seat heating on manually
(Y page 89) Switching the seat ventilation on/off
Activating/deactivating Seat ventilation is only available for the front
seats.
The three blue
indicator

lamps in the buttons
indicate the ventilation level you have
selected.
X Make sure that the SmartKey is in
position 2 (Y page 139) in

the ignition lock.
X To switch on: press button 0043 repeatedly
until the desired ventilation level is set. i
If you open the side windows and the
sliding sunroof using the SmartKey
(Y page 78), the driver's seat ventilation
automatically switches
to the

highest level.
X To switch off: press button 0043 repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
Problems with the seat ventilation If one or all of the indicator lamps in the seat
ventilation button are flashing, the seat
ventilation has switched off automatically.
The vehicle's electrical system voltage is too
low because too many electrical consumers
are switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
Once the
battery is

sufficiently charged, the
seat ventilation will switch back on
automatically. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature 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. 90
Steering wheel
Seats, steering wheel and mirrors

If steering wheel heating indicator lamp
0087 is
flashing, the steering wheel heating has
switched off automatically. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X Switch off electrical
consumers that you do
not need, such as the rear window
defroster or interior lighting.
Once the battery is

sufficiently charged, the
steering wheel heating will switch back on
automatically. Steering wheel EASY-ENTRY/EXIT
feature
Important safety notes G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXIT
feature.
If there is a risk of someone becoming
trapped, stop the adjustment procedure. To
halt the procedure:
R press the steering column adjustment
button.
R press one of the memory function position
buttons.
The steering column stops moving
immediately.
Do not keep the memory function position
button pressed as this will start the memory
function and set the steering wheel and seat
in motion.
Do not leave children unattended in the
vehicle. They could open

the driver's door and
thereby unintentionally activate the EASY-
ENTRY/EXIT feature and become trapped. G
WARNING
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
! Do not activate the EASY-ENTRY/EXIT
feature, if the seat

backrest is reclined too
far backwards. This can damage the front
or rear seats. You must first move the
backrest to a vertical position.
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board
computer (Y page 221).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel moves upwards and
towards the dashboard if:
R
you remove the SmartKey

from the ignition
lock or
R you open the driver's door with the
SmartKey in position 0 or 1 in the ignition
lock.
i The steering wheel only moves upwards
and towards the dashboard if it has not
already reached the upper end stop.
Position of the steering wheel for
driving The steering wheel is moved to the last
selected position when:
R
the driver's door is closed.
R you insert the SmartKey into the ignition
lock.
The last position of the steering wheel is
stored when you switch off the ignition or
when you store the setting with the memory
function ( Y page 95).92
Steering wheel
Seats, steering wheel and mirrors

Mirrors
Rear-view mirror
X Adjust the rear-view mirror by hand so you
have a good overview of the traffic
conditions behind you. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image. Objects are actually closer than they
appear. You could misjudge
the distance from
vehicles driving behind and cause an
accident, e.g. when changing lane. For this
reason, make sure of the actual distance from
the vehicle driving behind by glancing over
your shoulder. X
Make sure that the SmartKey is in position
1 or 2 (Y page 139) in the ignition lock.
X Press button 0043 to select the left-hand
exterior mirror
or
X Press button 0044 to select the right-hand
exterior mirror.
X Press button 0087 up, down, or to the left or
right until you have adjusted the exterior
mirror to the correct position. You should
have a good overview of traffic conditions.
i The convex exterior mirrors provide a
larger field of vision. i
The exterior mirrors are automatically
heated if the rear window defroster is
switched on and the outside temperature
is low.
Folding the exterior mirrors in/out
electrically X
Make sure that the SmartKey is in position
1 or 2 (Y page 139) in the ignition lock.
X Briefly press button 0043.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
i If you are driving faster than
9 mph (15
km/h

), you can no longer fold in
the exterior mirrors.
Setting the exterior mirrors If the battery has been disconnected or
completely discharged, the exterior mirrors
must be reset. The exterior mirrors will
otherwise not fold in when you select the Mirrors
93
Seats, steering wheel and mirrors Z

signal or turn the steering wheel to the
straight-ahead position
The cornering light
function
may remain lit for
a short time, but is automatically switched off
after no more than three minutes. Headlamps and indicator lamps
fogged up on the inside
The headlamps and the

indicator lamps in the
exterior mirrors may fog up on the inside if
there is high atmospheric humidity.
X Drive with the headlamps switched on.
The level of moisture diminishes,
depending on the length

of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified
specialist workshop. Interior lighting
Overview of interior lighting
Front overhead control panel
0043
003D Switches the left-hand front reading
lamp on/off
0044 004A Switches the front interior lighting
on
0087 0041 Switches the cargo compartment
lamp/rear interior lighting on/off
0085 0033

Switches the front interior lighting/
automatic interior lighting control off 0083
003D Switches the right-hand reading
lamp on/off
0084 Switches the automatic interior lighting
control on Rear-compartment overhead control panel
0043
003D Switches the right-hand reading
lamp on/off
0044 003D Switches the left-hand reading lamp
on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior
lighting

functions are
automatically deactivated after some time
unless the SmartKey is in position 2 in the
ignition lock.
The brightness of the ambient lighting may be
set using the control on the instrument
cluster (Y page 209). Interior lighting
105
Lights and windshield wipers Z

Automatic interior lighting control
Front overhead control panel
0043
003D Switches the left-hand front reading
lamp on/off
0044 004A Switches the front interior lighting
on
0087 0041 Switches the cargo compartment
lamp/rear interior lighting on/off
0085 0033
Switches the front interior lighting/
automatic interior lighting control off
0083 003D Switches the right-hand reading
lamp on/off
0084 Switches the automatic interior lighting
control on
X To switch on: set rocker switch 0084 to the
center position.
The interior lighting switches on
automatically when it is dark if you:
R unlock the vehicle
R open a door
R remove

the SmartKey from

the ignition lock
X To switch off: press the 0033 symbol on
rocker switch 0084.
The interior lighting remains switched off
even when it is dark if you:
R unlock the vehicle
R open a door.
R remove the SmartKey from

the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the
ignition lock. You can activate this delayed
switch-off using the on-board computer
(Y page 220). When a front door is opened, the front interior
lighting comes on. When a rear door is
opened, the rear interior lighting comes on.
In addition, the courtesy lights come on.
i
If a door remains

open and the SmartKey
is not in the ignition lock, the interior
lighting switches off after a short while.
Manual interior lighting control Front interior lighting
!
If the interior lighting has been switched
on manually, it will not be switched off
automatically.
This can cause the starter battery to
discharge.
Make sure that the interior lighting does
not remain switched on too long after the
engine has been switched off. Front overhead control panel
0043
003D Switches the left-hand front reading
lamp on/off
0044 004A Switches the front interior lighting
on
0087 0041 Switches the cargo compartment
lamp/rear interior lighting on/off
0085 0033

Switches the front interior lighting/
automatic interior lighting control off
0083 003D Switches the right-hand reading
lamp on/off
0084 Switches the automatic interior lighting
control on106
Interior lighting
Lights and windshield wipers