2008 MERCEDES-BENZ G55AMG light

88 Safety and Security
Driving safety systems
Continuous steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
On slippery road surfaces, the ABS will
respond even to light brake pressure. The
pulsating brake pedal can be an indication
of hazardous road conditions and func-
tions as a reminder to take extra care while
driving.
The - indicator lamp in the instrument
cluster (
page 26) comes on when you
turn the SmartKey to position 2. It goes
out when the engine is running. Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating
that the ABS is in
the regulating mode.
Keep firm and steady pressure on the
brake pedal while experiencing the
pulsation. Emergency brake maneuver
Keep continuous full pressure on the
brake pedal.
Warning!G
When the ABS is malf
unctioning, the BAS,
the EBB, the ESP®, and the 4-ETS are also
switched off. The basic driving and braking
functions are still available.
When the ABS is malfunctioning, the wheels
may lock during hard braking, reducing
steering capability and extending the brak-
ing distance.
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91
Safety and Security
Driving safety systems
For more information, see “Practical hints”
(
page 330).
EBB
The Electronic Brake Booster (EBB)
enhances braking effectiveness by allow-
ing the rear brakes to supply a greater
proportion of the braking
effort in straight
line braking circumstances without a loss
of vehicle stability.
For more information, see the “Practical
hints” section (
page 327).
ESP®
The Electronic Stability Program (ESP®) is
operational as soon as the engine is run-
ning and monitors the vehicle’s traction
(force of adhesive friction between the
tires and the road surface) and handling.
The ESP
® recognizes when a wheel is
spinning or if the vehicle starts to skid.
By applying the brakes to the appropriate
wheel and by limiting engine output, the
ESP
® works to stabilize the vehicle.
The ESP® is especially useful while driving
off and on wet or slippery road surfaces.
The ESP
® also stabilizes the vehicle during
braking and steering maneuvers.
The ESP
® warning lamp v in the instru-
ment cluster (
page 26) flashes when the
ESP® is engaged.
The ESP
® warning lamp v comes on
when you switch on ignition (
page 39).
It goes out when the engine is running.
!Operational or performance test must only
be conducted on a two-axle dynamometer. If
such tests are necessary, contact an authorized
Mercedes-Benz Light Truck Center. You could
otherwise seriously damage the brake system or
the transfer case which is not covered by the
Mercedes-Benz Limited Warranty.
!Because the ESP® operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position 0 or 1)
when testing the parking brake on a brake test
dynamometer and such testing should be no
longer than 10 seconds.
Active braking action through ESP
® may
otherwise seriously damage the brake system
which is not covered by the Mercedes-Benz
Limited Warranty.
Warning!G
If the EBB is malfun ctioning, the brake
system is still functionin g. 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 EBB.
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92 Safety and Security
Driving safety systems
Warning!G
Never switch off the ESP® when you see the
ESP® warning lamp v flashing in the
instrument cluster. In this case proceed 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 ESP
® cannot prevent accidents result-
ing from excessive speed.
Warning!G
The ESP® cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded. The ESP
®
cannot prevent accidents, including those
resulting from excessiv e speed in turns, fol-
lowing another vehicle too closely, or hydro-
planing. Only a safe, attentive, and skillful
driver can prevent accidents. The capabili-
ties of a ESP
® equipped vehicle must never
be exploited in a reckless or dangerous
manner which could jeopardize the user’s
safety or the safety of others.
!Operational or performance test must only
be conducted on a two-axle dynamometer. If
such tests are necessary, contact an authorized
Mercedes-Benz Light Truck Center. You could
otherwise seriously damage the brake system or
the transfer case which is not covered by the
Mercedes-Benz Limited Warranty.
!Because the ESP® operates automatically,
the engine and ignition must be shut off when
testing the parking brake on a brake test
dynamometer and such testing should be no
longer than 10 seconds.
Active braking action through ESP
® may
otherwise seriously damage the brake system
which is not covered by the Mercedes-Benz
Limited Warranty.
iThe ESP® will only function properly if you
use wheels of the recommended tire size
(
page 414).
iThe ABS, BAS, and ESP® are automatically
switched off when the differential locks are
switched on (
page 175).
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95
Safety and Security
Anti-theft systems
 Anti-theft systems
Immobilizer
The immobilizer prev ents unauthorized
persons from starting your vehicle.
Activating
Remove the SmartKey from the starter
switch.
Deactivating
Turn the SmartKey in the starter switch
to position 2 (
page 39).
Anti-theft alarm
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens

a door

the tailgate

the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed. The alarm system will also be triggered
when

someone attempts to raise the vehicle

the vehicle is opened with the
mechanical key

someone opens a door from the inside

someone opens the tailgate from the
inside
iStarting the engine wi
ll also deactivate the
immobilizer.
In 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).
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99
Controls in detail
Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Transfer case
Differential locks
Good visibility
Climate control
Power windows
Power tilt/sliding sunroof
Driving systems
Loading
Useful features
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101
Controls in detail
Locking and unlocking
Warning!G
When leaving the vehicl
e, always remove the
SmartKey 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. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious personal injury.
!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of electro-
magnetic radiation.
!If you cannot lock or unlock the vehicle with
the SmartKey, the batteries in the SmartKey are
discharged, the SmartKey is malfunctioning, or
the vehicle battery is drained.

Check the batteries in the SmartKey
(
page 103) and replace them if necessary
(
page 374).

Unlock the vehicle as described in the
“Practical hints” section (
page 368).

Lock the vehicle as described in the
“Practical hints” section (
page 369).

Have the vehicle battery and the vehicle
battery connections checked at an autho-
rized Mercedes-Benz Light Truck Center
(
page 394).
If the SmartKey is malfunctioning, contact an
authorized Mercedes-Benz Light Truck Center.
iUSA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iCanada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
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103
Controls in detail
Locking and unlocking
Global unlocking
Press button
Πtwice.

All turn signal lamps flash once.

The locking knobs in the doors
move up.

The anti-theft alarm system is
disarmed.
Global locking
Press button ‹.
With the hood, tailgate and all doors
closed:

All turn signal lamps flash three
times.

The locking knobs in the doors
move down.

The anti-theft alarm system is
armed. Restoring to factory setting
Press and hold buttons
Œ and‹
simultaneously for about 6 seconds
until battery check lamp 5
(
page 100) flashes twice.
Checking batteries in the SmartKey
Press button ‹ orŒ .
Battery check lamp 5 (
page 100)
comes on briefly to indicate that the
SmartKey batteries are in order.
Loss of the SmartKey
If you lose your SmartKey or mechanical
key, you should do the following:
Have the SmartKey deactivated at 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.
Any authorized Mercedes-Benz Light Truck
Center will be glad to supply you with a re-
placement.
iIf battery check lamp 5 does not come on
briefly during check, the SmartKey batteries are
discharged.
Replace the batteries (
page 374).
You can obtain the required batteries at any
authorized Mercedes-Benz Light Truck Center.
iIf the batteries are checked within signal
range of the vehicle, pressing button ‹
or Πwill lock or unlock the vehicle
accordingly.
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104 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.1 Locking knob
2 Inside door handle Front doors
Pull on inside door handle
2 on the
respective front door to open door.
If the door was locked, locking knob 1
will move up.
Rear doors
Pull up locking knob 1 on the
respective rear door to unlock door.
Pull on inside door handle 2 on the
respective rear door to open door.
iIf the vehicle has previously been locked
with the SmartKey, opening a door or the tailgate
from the inside will trigger the anti-theft alarm
system.
To cancel the alarm, do one the following:

Insert the SmartKey in the starter switch.

Press button Œ or‹ on the
SmartKey.iIf you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
!Failure to switch off the headlamps when
leaving the vehicle may result in a discharged
battery.
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