Page 83 of 344

83 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Removing the key from the steering lock
activates the immobilizer.
Deactivating
Turning the key in the steering lock to
position2 (
page 33) deactivates the im-
mobilizer.
Anti-theft alarm
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone:
opens a door
opens the liftgate
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
unlocking and opening the driver’s
door with the mechanical keyArming the alarm system
The alarm system is armed after locking
the vehicle with the remote control. The
turn signal lamps flash three times to indi-
cate that the alarm system is activated. A
red lamp in the center console will flash af-
ter approximately 10 seconds when the
alarm system is completely armed
(
page 27).
iIn case the engine cannot be started
(vehicle’s battery is in order), the sys-
tem is not operational. Contact an au-
thorized 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 171) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
Page 84 of 344

84 Safety and SecurityAnti-theft systemsDisarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the remote con-
trol. The turn signal lamps flash once to in-
dicate that the alarm system is
deactivated.Canceling the alarm
To cancel the alarm:
Switch on the ignition by turning the
key in the steering lock to position2.
or
Press theŒ or ‹button on the
remote control.
The alarm is canceled.
Tow-away alarm, glass breakage
sensor
The tow-away alarm and the glass break-
age sensor are part of the anti-theft alarm
system.Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone:
attempts to raise the vehicle
breaks a window and reaches into the
passenger compartment
iIf the turn signal lamps do not flash
three times, the tow-away - glass
breakage sensor is malfunctioning or
one of the following elements may not
be properly closed:
a door
the liftgate
the hood
Close the respective element and lock
the vehicle again.
iThe alarm system will rearm automati-
cally again after approximately
40 seconds if one of the doors or the
liftgate is not opened.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is
lifted 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 (
page 171) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
Page 85 of 344
85 Safety and Security
Anti-theft systems
Arming tow-away alarm and glass
breakage sensor
When you lock your vehicle, the tow-away
and glass breakage sensor alarm is auto-
matically armed.
Disarming tow-away alarm and glass
breakage sensor
To prevent triggering the tow-away alarm
feature, switch off the tow-away alarm and
glass breakage sensor before towing the
vehicle, or when parking on a surface sub-
ject to movement, such as a ferry or auto
train.Vehicles with trip computer*
The buttons are located in the overhead
control panel.
1Reset button
2Mode button
3Display
4Glass breakage sensor
Turn key in steering lock to position2
(page 33).
Return key to position0 and remove it
from the steering lock.
Within 30 seconds press button1
or2.
The display shows
OFF
.
Exit vehicle and lock vehicle with
remote control (
page 32).
The tow-away alarm and glass breakage
sensor remain switched off until the key is
inserted in steering lock and turned to
position1.
Page 86 of 344
86 Safety and SecurityAnti-theft systemsVehicles without trip computer
The buttons are located in the overhead
control panel.
1Switching off tow-away alarm and glass
breakage sensor
Turn key in steering lock to position2
(page 33).
Return key to position0 and remove it
from the steering lock.
Within 30 seconds press button1 on
the right or left side.
Exit vehicle and lock vehicle with
remote control (
page 32).
The tow-away alarm and glass breakage
sensor remain switched off until the key is
inserted in steering lock and turned to
position1.Canceling the alarm
To cancel the alarm:
Switch on the ignition by turning the
key in the steering lock to position2.
or
Press theŒ or ‹button on the
remote control.
The alarm is canceled.
Page 100 of 344

100 Controls in detailSeatsFolding down the backrest
1Lock button
Close cup holder (
page 167) and
ashtray (
page 169) in rear center
console (page 167).
Move front seats forward. Manual seat
(page 35) or power seat (
page 37).
Slide seat forward.
Remove head restraint(s) (
page 95).
Pull lock button1 up and fold back-
rest forward until it locks in place.The red backrest lock indicator at lock
button1 is not visible in the locked
position.
Folding up the backrest
Close cup holder (
page 167) and
ashtray (
page 169) in rear center
console.
Pull lock button1 up and unfold back-
rest until it locks in place.
M a k e s u r e t h e s e a t b e l t i s n o t c a u g h t i n
the seat.
Check for secure locking by pulling and
pushing on the backrest.
The red backrest lock indicator at lock
button1 is not visible in the locked
position.
Install head restraint (
page 96).
Slide seat rearward to desired position
(page 99).
Adjust front seats to desired position.
Manual seats (
page 35) or power
seats (
page 37).
Lowering the rear seat
1Release button
2Lever
3Release lever
Page 102 of 344

102 Controls in detailSeatsResetting rear seat
Pull down on seat bench until it locks
into place.
Pull lock button1 (
page 100) up
and unfold backrest until it locks into
place.
Check for secure locking by pulling and
pushing on the backrest.
The red backrest lock indicator at lock
button1 (
page 100) is not visible in
the locked position.
Move the rear and front seats in de-
sired position.
Pull up and adjust head restraint
(page 36).
Third row seats*Folding down single seat
1Head restraint
2Hook
3Tensioner
4Hook and loop velcro strip
Remove cargo floor plate
(page 162).
Remove head restraint1 from seat
cushion.
Lift tensioner3 upward to a horizon-
tal position to release tension of the
belt.
Disengage hook2 while holding onto
the seat firmly with one hand.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that 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.
Failure to assure that seats are locked into
place could result in an increased chance of
injury in an accident.
Never place hands under seat or near any
moving parts while a seat is being adjusted.
Page 103 of 344

103 Controls in detailSeats
Attach belt at hook and loop velcro
strip4 (
page 102) on underside of
seat.
5Backrest release
6Seat release
Fold seat down until it locks securely in
place.
The red marking on the seat release6
should not be visible.
Store cargo floor plates inside the
backrest (
page 162).
Pull backrest release5 and unfold
backrest until it locks securely in place.
Install head restraint1 in backrest
(page 102).
Storing single seat
Remove head restraint from backrest
(page 102).
Pull backrest release5 and fold back-
rest forward until it locks securely in
place.
Remove cargo floor plates from the
backrest.
Pull seat release6 (
page 103) and
fold seat up.
Disengage belt and engage hook2
(page 102) in ceiling mount.
Pull on free end of belt until tight.
Install head restraint in openings
provided in seat cushion.
Install cargo floor plates (
page 162).
Warning!
G
After folding the seats up, manually place
the lap belt portion of the seat belt behind
the seat (arrow). Otherwise, the lap belt may
be subject to damage and could rip.
Page 105 of 344

105 Controls in detail
Memory function*
Memory function*
With the memory button you can store up
to three different settings for the driver-
and passenger seat.
Together with the driver’s seat you can
store the exterior rear view mirrors.
For the front passenger seat you can store
the seat position.
Storing exterior rear view mirror parking position
For easier parking, you can adjust the pas-
senger-side exterior rear view mirror so
that you can see the right rear wheel as
soon as you engage reverse gearR.For information on activating the parking
position feature, see “Activating exterior
rear view mirror parking position”
(
page 127).
1Position buttons
2Memory button
!Prior to operating the vehicle the driver
should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to en-
sure adequate control, reach and com-
fort. The head restraint should also be
adjusted for proper height. See also the
section on airbags (
page 59) for
proper seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the inside and
outside rear view mirrors should be ad-
justed for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standard 213 and 225 and Canadian
Motor Vehicle Safety Standard 213 and
210.2.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.