Page 31 of 317

28 Central locking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Locking:
Press transmit button ‹ once. All turn signal lamps 
blink three times to indicate that the vehicle is locked 
and the antitheft alarm is activated.
Notes:
If the turn signal lamps do not blink three times when 
locking the vehicle, a door, the liftgate, or the hood is 
not properly closed. Close the respective element and 
lock the vehicle again with the remote control.
If the vehicle cannot be locked or unlocked by pressing 
the transmit button, then it may be necessary to change 
the batteries in the remote control or to synchronize the 
remote control, see page 270 and page 271.
Unlocking the liftgate
Press transmit button Š to unlock the liftgate. This 
also deactivates the antitheft alarm.
Important!
A minimum height clearance of 7 ft. (2.15 m) is 
required to open the liftgate.Panic button
To activate press and hold button (1) for at least one 
second. An audible alarm and blinking turn signal 
lamps will operate for approximately 3 minutes. 
Additionally the interior lights switch on automatically 
for approximately 3 minutes.
To deactivate press button (1) again, or press transmit 
button‹, ŒorŠ on the remote control, or 
turn key in steering lock to position 1. 
     
        
        Page 66 of 317

63 Restraint systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Safety guidelines for the seat belt, 
emergency tensioning retractor and airbag
Wa r n i n g !
• Damaged seat belts or belts that were highly 
stressed in an accident must be replaced and 
their anchoring points must also be checked. 
Use only belts installed or supplied by an 
authorized Mercedes-Benz Light Truck Center.• Do not pass belts over sharp edges.• Do not make any modification that could 
change the effectiveness of the belts.• Airbags and ETR’s are designed to function on 
a one-time-only basis. An airbag or emergency 
tensioning retractor (ETR) that was activated 
must be replaced.
• An airbag system component within the 
steering wheel gets hot after the airbag has 
inflated. Do not touch.• Improper work on the system, including 
incorrect installation and removal, can lead to 
possible injury through an unintended 
activation of the “SRS”.• No modifications of any kind may be made to 
any components or wiring of the “SRS”. This 
includes changing or removing any component 
or part of the “SRS”, the installation of 
additional trim material, badges etc. over the 
steering wheel hub, front passenger airbag 
cover, or front door trim panels, and 
installation of additional electrical / electronic 
equipment on or near “SRS” components and 
wiring. Keep area between airbags and 
occupants free of objects (e.g. packages, 
purses, umbrellas, etc.). 
     
        
        Page 93 of 317

90 Exterior lamp switch
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Exterior lamp switch
Rotate switch $ to positions:
DOff
CParking lamps (also side marker lamps, taillamps, 
license plate lamps, instrument panel lamps) 
Canada only: When the engine is running, the low 
beam is additionally switched on.
õParking lamps plus low beam or high beam 
headlamps (switch pushed forward)ƒStanding lamps, left or right side (depending on 
turn signal switch position). Turn key in steering 
lock to position 0 or remove.
Standing lamps, left – move stalk to position (5).
Standing lamps, right – move stalk to position (4).
Move stalk to positions:
1Low beam (exterior lamp switch position õ)
2High beam (exterior lamp switch position õ)
3High beam flasher (high beam available 
independent of exterior lamp switch position)
4Turn signals, right
5Turn signals, left
To signal minor directional changes, such as changing 
lanes on a h ig hway, m ove  exterior la mp sw itch b rief ly to 
the point of resistance only and release. The turn 
signals blink three times.
To operate the turn signals continuously, move the 
exterior lamp switch past the point of resistance (up or 
down). The switch is automatically canceled when the 
steering wheel is turned to a large enough degree.