2005 MERCEDES-BENZ G55AMG Owner's Manual

177 Controls in detail
Driving systems
1Sets current or higher speed
2Sets current or lower speed
3Cancels cruise control
4Resumes at last set speed
Setting current speed
Accelerate or decelerate to the desired
speed.

Briefly lift1 or depress2 the cruise
control lever.
The current speed is set.

Remove your foot from the accelerator
pedal.
Cruise control is activated.Canceling cruise control
There are several ways to cancel cruise
control:

Step on the brake pedal.
Cruise control is canceled. The last set
speed is stored for later use.
or

Briefly push the cruise control lever to
position3.
Cruise control is canceled. The last set
speed is stored for later use.iOn uphill or downhill grades, cruise
control may not be able to maintain the
set speed. Once the grade eases, the
set speed will be resumed.
!Moving gear selector lever to
positionN while driving also cancels
cruise control. However, the gear se-
lector lever should not be moved to
positionN while driving, except to
coast when the vehicle is in danger of
skidding (e.g. on icy roads).iThe last stored speed is canceled when
you turn off the engine.

178 Controls in detailDriving systemsSetting a higher speed
Lift cruise control lever to position1
and hold it up until the desired speed is
reached.

Release cruise control lever.
The new speed is set.
Setting a lower speed

Depress cruise control lever to
position2 and hold it down until the
desired speed is reached.

Release cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster

Briefly tip cruise control lever in
direction of arrow1.
Slower

Briefly tip cruise control lever in
direction of arrow2.Setting to last stored speed
(“Resume” function)

Briefly push cruise control lever to
position4.
Cruise control resumes the last set
speed.

Remove your foot from the accelerator
pedal.
iDepressing the accelerator pedal does
not deactivate cruise control. After
brief acceleration (e.g. for passing),
cruise control will resume the last
speed set.
iWhen you use the cruise control lever
to decelerate, the transmission will au-
tomatically downshift if the engine’s
braking power does not brake the vehi-
cle sufficiently.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could endanger yourself and others.

179 Controls in detail
Driving systems
Rear Parking Assist*
The Rear Parking Assist system is an elec-
tronic aid designed to assist the driver dur-
ing parking maneuvers. It visually and
audibly indicates the relative distance be-
tween the rear of the vehicle and an obsta-
cle.
The Rear Parking Assist system is auto-
matically activated when you switch on the
ignition and shift the gear selector lever to
positionR.The Rear Parking Assist system monitors
the rear area of your vehicle by means of
four sensors in the rear bumper.
1SensorsWarning!
G
Rear Parking Assist (rear Parktronic) is a
supplemental system. It is not intended to,
nor does it replace, the need for extreme
care. The responsibility during parking and
other critical maneuvers always rests with
the driver.
Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts, or
street curbs). Such objects may not be de-
tected by the system and can damage the
vehicle.
The operational function of the Rear Parking
Assist can be affected by dirty sensors, es-
pecially at times of snow and ice. See
“Cleaning the Rear Parking Assist sensors”
(page 283).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers or the air
brakes of trucks) can cause the system to
send erratic indications, and should be tak-
en into consideration.Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.

180 Controls in detailDriving systemsRange of the sensors
To function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the
sensors regularly, being careful not to
scratch or damage them.Minimum distance
The minimum distance between the sen-
sors and an obstacle is approximately
20 in (50 cm). If you encounter an obstacle
in this range, all the warning lamps come
on and you hear a warning signal. If the ob-
stacle is closer than the minimum dis-
tance, the actual distance may no longer
be indicated by the system.
Center
approx. 59.1 in (150 cm)
Corners
approx. 40 in (100 cm)
!During parking maneuvers, pay special
attention to objects located above or
below the height of the sensors (e.g.
planters or trailer hitches). The Rear
Parking Assist system will not detect
such objects at close range and dam-
age to your vehicle or the object may
result.
Ultrasonic signals from outside sourc-
es (e.g. truck air brakes or jackham-
mers) may impair the operation of the
Rear Parking Assist system.

181 Controls in detail
Driving systems
Warning indicator
Visual signals indicate to the driver the rel-
ative distance between the sensors and an
obstacle. The warning indicator is located
next to the tailgate.Warning indicatorAs your vehicle approaches an object, one
or more segments will come on, depending
on the distance. When the sixth segment
lights, you have reached the minimum dis-
tance.An intermittent acoustic warning will
sound when the first yellow segment
comes on. This signal quickens with each
additional segment lit. When all segments
illuminate, the acoustic warning becomes
a constant signal. The signal is canceled
when the gear selector lever is placed in
position D or P.
Rear Parking Assist malfunction
There is a malfunction in the Rear Parking
Assist system if:


a low warning tone sounds while the
vehicle is reversing
The Rear Parking Assist sensors are
dirty or malfunctioning.
Clean the Rear Parking Assist sys-
tem sensors (
page 283).

Switch on the ignition again.


no segments come on and no warning
sounds
The Rear Parking Assist is malfunction-
ing.
Have the Rear Parking Assist sys-
tem checked by an authorized
Mercedes-Benz Light Truck Center
as soon as possible.
Malfunction may also be caused by inter-
ference from other radio or ultrasonic sig-
nals.

Check the Rear Parking Assist opera-
tion at another location to rule out in-
terference from outside radio or
ultrasonic signals.

182 Controls in detailLoadingRoof rack
This vehicle is not intended to carry items
on its roof. Thus roof rails and any
roof-mounted devices must not be used.
Cargo compartment cover
1Rear seat bench cover
2Tailgate cover
Pull cover1 out. Hook it into the
mountings on the rear seat bench.

Pull cover2 out. Hook it into the
mountings to the left and right of the
tailgate.Rolling up the cover

Grip the cover strap and remove it from
the mountings on both sides.

Guide it slowly back into place.
Warning!
G
Do not load items on the roof. It may cause
instability during some maneuvers which
could result in an accident.

183 Controls in detail
Loading
Removing and installing the cover
Removing the cover
Open latch1 on right and left side in
direction of arrow.

Pull cover2 out upwards.
Installing the cover

Place cover into recesses.

Press right and left sides of cover down
until it locks into place.
Enlarged cargo compartment
The rear seat bench can be folded and low-
ered to increase the cargo compartment.
The left, right or both seat backrests sec-
tions may folded down according to need.
For more information, see “Split rear seat
bench” (
page 183).
Split rear seat bench
1Lever for seat backrest sections
2Lever for seat bench sections
The rear seat bench can be folded and low-
ered to enlarge the cargo compartment.
The left, right or both seat backrest sec-
tions may be folded down as required.
Warning!
G
Always lock seat backrest in its upright po-
sition when rear seat bench is occupied by
passengers, or cargo is being carried behind
the seat bench.
To help avoid personal injury from smaller
objects flying in the occupant area during a
collision or sudden maneuver, always use
partition net when transporting cargo
(page 185).

184 Controls in detailLoading
Folding seat backrest forward
Remove the head restraints
(page 102).

Pull release lever1 in direction of ar-
row and fold seat backrest forward un-
til it locks in place.
Folding seat bench forward

Fold seat backrest forward.

Pull release lever2 in direction of ar-
row and fold seat bench forward to-
gether with the seat backrest.Returning seat bench and seat back-
rest to sitting position

Fold up seat bench until it locks in
place.

Pull release lever1 and raise seat
backrest until it locks in place.

Check to make sure the seat is locked
by pushing and pulling on the seat
backrest.
Warning!
G
Failure to assure that seats and seat back-
rest 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.
For safety reasons, the rear seat bench
must only be adjusted when the vehicle is
stationary.
Never ride vehicle with the tailgate open.
Deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in uncon-
sciousness and death.!Before folding the seat backrest for-
ward and the rear seat bench down, be
sure that all containers in the rear cup
holder are removed.
Warning!
G
Failure to assure that seats and seat back-
rests are locked into place could result in an
increased chance of injury in an accident.