2008 MERCEDES-BENZ GL450 Power

107 Safety and Security
Driving safety systems
EBP
The EBP enhances braking effectiveness
by allowing the rear brakes to supply a
greater proportion of the braking effort
without a loss of vehicle stability.
For more information, see the “Practical
hints” section (
page 438) and
(
page 468).
4-ETS
The 4-Electronic Traction System (4-ETS)
improves the vehicle’s ability to utilize
available traction, especially under
slippery road conditions. The brakes are
applied to the spinning wheel and power is
transferred to the wheel(s) with traction.
The ESP
® warning lampv in the instru-
ment cluster, starts to flash at any vehicle
speed, as soon as a tire loses traction and
the wheel begins to spin.
Warning!G
If the EBP is malfunctioning, the brake sys-
tem is still functioning. However, the rear
wheels may lock during hard braking, caus-
ing you to lose control over the vehicle and
possibly causing an accident. Adjust your
driving style to the non-operating status of
the EBP.
iIf conditions require, switch on off-road
driving program (
page 277) or LOW RANGE*
mode (
page 201).
Warning!G
When you see ESP® warning lampv
flashing in the instrument cluster, then pro-
ceed as follows:

While driving off, apply as little throttle
as possible.

While driving, ease up on the accelera-
tor.

Adapt your speed and driving style to
the prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The 4-ETS cannot prevent accidents resul-
ting from excessive speed.
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111 Controls in detail
Locking and unlocking
Seats
Memory function*
Lighting
Instrument cluster
Control system
Automatic transmission
Transfer case
Differential locks*
Good visibility
Climate control
3-zone automatic climate control*
Power windows
Power tilt/sliding sunroof*
Driving systems
Loading
Useful features
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121 Controls in detail
Locking and unlocking
Front doors
Pull on inside door handle2 on the
respective front door to open door.
If the door was locked, locking knob1
will move up.
Rear doors
Pull up locking knob1 on the respec-
tive rear door to unlock door.
Pull on inside door handle2 on the re-
spective rear door to open door.
Tailgate/Power tailgate*
A minimum height clearance of
7.4 ft (2.25 m) is required to open the
tailgate.iIf the vehicle has previously been locked
from the outside with the SmartKey or with
KEYLESS-GO*, opening a door from the inside
will trigger the anti-theft alarm system.
To cancel the alarm, do one of the following:
With the SmartKey

Insert the SmartKey in the starter switch.

Press theŒ or ‹button on the
SmartKey.
With KEYLESS-GO*

Grasp an outside door handle.

Press the KEYLESS-GO* start/stop button
(
page 43).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.
Warning!G
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
!The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
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123 Controls in detail
Locking and unlocking
Closing the tailgate from the outside
1Handle
Lower tailgate by pulling firmly on
handle1.
Close tailgate with hands placed flat on
it.
Once the tailgate touches the latch, the
tailgate will pull itself shut automatical-
ly.Power tailgate*
In vehicles with power tailgate, you can

open and close the tailgate from the
inside and the outside electrically

limit the opening height of the tailgate

interrupt the opening/closing proce-
dure at any time by

pressing or pulling the
door-mounted remote tailgate
switch (
page 124)

pressing the Šbutton on the
SmartKey (
page 112) or
SmartKey with KEYLESS-GO*
(
page 115)

pressing the tailgate closing switch
(
page 126)

pressing the tailgate
closing/locking switch (vehicles
with KEYLESS-GO*) (
page 126)
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. 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.
iTo prevent an inadvertent lockout, do not
place the SmartKey in the cargo compartment.
Vehicles with KEYLESS-GO*: To prevent a
possible inadvertent lockout, the tailgate will
open automatically if a SmartKey with
KEYLESS-GO is recognized inside the vehicle.
iIf the vehicle was previously centrally locked
with the SmartKey or KEYLESS-GO*, the tailgate
will lock automatically after closing it. The turn
signals flash three times to confirm locking.
!The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
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125 Controls in detail
Locking and unlocking
Limiting opening height of tailgate*
In vehicles with power tailgate*, the tail-
gate opening height can be limited when
transporting goods on a roof rack* (e.g.
presence of an MB roof cargo container*).
When activated, the tailgate opens to
approximately 6.6 ft (2.00 m).
Activate the limiting opening height of
tailgate using the control system
(
page 181).
Closing the tailgate from the inside
You can close the tailgate from the inside
using the remote tailgate switch.
If the tailgate comes into contact with an
object while closing (e.g. luggage that has
been piled too high) the closing procedure
is stopped and the tailgate reopens.
Press remote tailgate switch1
(
page 124) until tailgate begins to
close.
The tailgate closes. While the tailgate is
closing an acoustic signal sounds.
To interrupt the closing procedure:
Press or pull remote tailgate switch1
(
page 124).
Warning!G
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with
the door-mounted switch. Monitor the
closing procedure carefully to make sure no
one is in danger of being injured.
To interrupt the closing procedure, press or
pull the door-mounted remote tailgate
switch or press the Šbutton on the
SmartKey or SmartKey with KEYLESS-GO*.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the
starter switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the remote tailgate switch can be operated.
Therefore, do not leave children unattended
i n t h e v e h i c l e , o r w i t h a c c e s s t o a n u n l o c k e d
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
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127 Controls in detail
Locking and unlocking
Closing the tailgate and locking the
vehicle from the outside (vehicles with
KEYLESS-GO*)
In vehicles with power tailgate and
KEYLESS-GO*, you can close the tailgate
and lock the vehicle simultaneously from
the outside using the KEYLESS-GO*
locking/closing switch.
If the tailgate comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the tailgate reopens.
Make sure you have the SmartKey with
KEYLESS-GO* with you.1KEYLESS-GO* locking/closing switch
Press KEYLESS-GO* locking/closing
switch1 briefly.
The tailgate closes automatically. Once
the tailgate is closed, the vehicle locks
if doors are closed. The turn signals
flash three times to confirm locking.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
iDo not place the SmartKey or SmartKey with
KEYLESS-GO* in the open cargo compartment.
You may lock yourself out.
iIf the vehicle was previously centrally
locked, the tailgate will lock automatically after
closing it. The turn signals will flash three times
to confirm locking.
Warning!G
Monitor the closing procedure carefully to
make sure no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the cargo compartment opening when clos-
ing the tailgate. Be especially careful when
small children are around. To stop the clos-
ing procedure, do one of the following:

Press tailgate closing switch1
(
page 126).

Press KEYLESS-GO* locking/closing
switch*1 (
page 127).

Press the Šbutton on the SmartKey
with KEYLESS-GO* (
page 115).

Press or pull the remote tailgate switch
on the driver’s door (
page 124).
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142 Controls in detail
Memory function*
Storing positions into memory
Adjust the seats (page 45).
On the driver’s side, additionally adjust
the steering wheel (
page 50) and ex-
terior rear view mirrors (
page 51) to
the desired positions.
Press memory buttonM.
Release memory buttonM and press
stored position button1,2 or3 within
3 seconds.
All settings are stored to the selected
position.
Recalling positions from memory
Press and hold stored position
button1,2 or3 until the seat, steering
wheel and exterior rear view mirrors
have fully moved to the stored posi-
tions.
!Do not operate the power seats using
memory buttonM if the seat backrest is in an
excessively reclined position. Doing so could
cause damage to front or rear seats.
Move seat backrest to an upright position first.
iReleasing the stored position button stops
movement to the stored positions immediately.
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179 Controls in detail
Control system
Press buttonj ork repeatedly
until the message
Compass Setting
Zone
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to set the
respective compass zone.
For information on how to call up the
compass, see “Compass” (
page 344).Compass calibration
This function is not available if your vehicle
is equipped with the COMAND system and
navigation module*.
In order to calibrate the compass properly,
mind the following:

Calibrate the compass in open terrain.
Nearby buildings, bridges, power lines
and large antenna masts, for example,
could impair compass calibration.

Switch off electrical consumers (e.g.
climate control, windshield wipers, or
rear window defroster).

Close all doors and the tailgate.
Start the engine (page 56).
Press buttonæ orç to move
the selection marker to the
Vehicle
submenu.
Press buttonj ork repeatedly
until the message
Compass Calibration appears in the
multifunction display.
The selection marker is on setting
switched Off.
Press buttonæ to set the selection
marker to
Start.
The following message appears in the
multifunction display:
Compass Calibration Active
Please drive in a full circle.
iMake sure you are in area where you can
drive a full circle with your vehicle without dis-
turbing traffic in order to calibrate the compass.

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