2004 MERCEDES-BENZ G500 door lock

71 Safety and Security
Occupant safety
Blocking rear door window operation
The override switch is located in the driv-
er’s door.
1Override switch
Activating override switch
Slide override switch1 to the right.
A dot becomes visible. The functions in
the rear are disabled.
iWith a child seat installed in the left
rear seat, the seat belt for the center
seat occupied by a passenger must op-
erate freely.
Non-LATCH type child seats may also
be used and can be installed using the
vehicle’s seat belt system. Install child
seat according to the manufacturer’s
instructions.Warning!
G
Install child seat according to manufactur-
er’s instructions.
T h e c h i l d s e a t m u s t b e f i r m l y a t t a c h e d i n t h e
right and left side anchors.
Warning!
G
An incorrectly mounted child seat may come
loose during an accident.
Damaged or impact-damaged child seats or
child seat mounting fittings must be re-
placed.
Do not leave children unattended in the ve-
hicle, even if the children are secured in a
child restraint system.
Children too big for child restraint systems
must ride in back seats using regular seat
belts. Position shoulder belt across chest
and shoulder, not face or neck. A booster
seat may be necessary to achieve proper
belt positioning for children from 41 lbs until
they reach a height where a lap / shoulder
belt fits properly without a booster.
iOperation of the rear windows with the
switches located in the driver’s door is
still possible.

82 Safety and SecurityAnti-theft systems
Anti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Removing the SmartKey from the starter
switch activates the immobilizer.
Deactivating
Inserting the SmartKey in the starter
switch deactivates the immobilizer.
Anti-theft alarm
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone:

opens a door


opens the tailgate


opens the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when


someone attempts to raise the vehicle


the vehicle is opened with the mechan-
ical keyArming the alarm system
The alarm system is armed after locking
the vehicle with the SmartKey. The turn
signal lamps blink three times to indicate
that the alarm system is activated. A red
lamp in the tow-away alarm switch begins
to blink after arming the alarm system
(
page 27).
iIn case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Light
Truck Center or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem (
page 190) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.

83 Safety and Security
Anti-theft systems
Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the SmartKey. The
turn signal lamps blink once to indicate
that the alarm system is deactivated.Canceling the alarm
To cancel the alarm:

Press the Œ or ‹ button on the
SmartKey.
or

Insert the SmartKey in the starter
switch.
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
iIf the turn signal lamps do not blink
three times, one of the following ele-
ments may not be properly closed:

a door


the tailgate


the hood
Close the respective element and lock
the vehicle again.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is lift-
ed on one side.
If the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.

86 Controls in detailLocking and unlocking
In the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed in your vehicle.
If you are already familiar with the basic
functions of your vehicle, this section will
be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlocking
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key. The locking
tabs for the mechanical key portion of the
two SmartKeys are a different color to help
distinguish each key unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:

the doors


the tailgate


the fuel filler flap
SmartKey with remote controls1‹ Lock button
2Locking tab for mechanical key
3ΠUnlock button
4Battery check lamp
5Â Panic button (
page 73)
iYou can also open and close the power
windows (
page 165) and slid-
ing/pop-up roof (
page 167) using
the SmartKey.

87 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps blink once. The
locking knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor tailgate is
opened, the SmartKey is not inserted in
the starter switch, or the central locking
switch is not activated.
Global locking

Press button‹.
All turn signal lamps blink three times.
The locking knobs in the doors move
down.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttonsŒ and‹
simultaneously for about five seconds
until battery check lamp4 blinks
twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap

Press buttonΠonce.
Global unlocking

Press buttonΠtwice.
Global locking

Press button‹.Restoring to factory setting

Press and hold buttonsŒ and‹
simultaneously for about six seconds
until the battery check lamp4 blinks
twice.
!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. It is possible for children to
open a locked door from the inside, which
could result in an accident and/or serious
personal injury.

88 Controls in detailLocking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp4 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:

Have the SmartKey deactivated by an
authorized Mercedes-Benz Light Truck
Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary have the mechanical lock
replaced.
Your authorized Mercedes-Benz Light
Truck Center will be glad to supply you
with a replacement.
!If you can no longer lock or unlock the
vehicle with the SmartKey, then the
batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.

Check the batteries in the Smart-
Key (
page 88) and replace them if
necessary (
page 288).


Use the mechanical key to unlock
the doors (
page 287).


Have the vehicle battery and the
battery connections checked by an
authorized Mercedes-Benz Light
Truck Center (
page 311).


Use the mechanical key to lock the
doors and the tailgate
(page 288).
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz
Light Truck Center.
!If battery check lamp4 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 288).
You can obtain the required batteries
at any authorized Mercedes-Benz Light
Truck Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.

89 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handle
Pull on door handle2.
If the door was locked, locking knob1
moves up.
Opening the tailgateOpening the tailgate from the outside
1Handle
2Lock cylinder

Press lock cylinder2 and pull on tail-
gate handle1.

Open the tailgate to the side.
iIf the vehicle has previously been
locked from the outside with the
SmartKey, opening a door from the in-
side will trigger the alarm.
To cancel the alarm do one the follow-
ing:

Press the Œ or ‹ button on
the SmartKey.


Insert the SmartKey in the starter
switch.
Warning!
G
The tailgate swings open to one side. Always
make sure there is sufficient clearance for
the tailgate.
Only drive with the tailgate closed as other-
wise exhaust fumes may enter the vehicle
interior.
iThe vehicle must be unlocked.

90 Controls in detailLocking and unlockingOpening the tailgate from inside
1Locking knob
2Inside door handle
Pull on door handle2.
If door was locked, the locking knob1
moves up.
Closing the tailgate
Separately locking the tailgate
1Neutral position
2Locked
Warning!
G
Do not leave children unattended in the ve-
hicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the tail-
gate opening when closing the tailgate. Be
especially careful when small children are
around.Warning!
G
Only drive with the tailgate closed as other-
wise exhaust fumes may enter the vehicle
interior.iTo prevent an inadvertent lockout, do
not place the SmartKey in the cargo
compartment.
iTo deny any unauthorized person ac-
cess to the tailgate, lock it separately
with the mechanical key. Leave only
the SmartKey less its mechanical key
with the vehicle.