2014 MERCEDES-BENZ GL-Class lock

If a course-correcting brake application
occurs, red warning lamp :flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display ;underlining
the danger of a side collision appears in the
multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be
interrupted at any time if you steer slightly in
the opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between
20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs if:
R there are vehicles or obstacles, e.g. crash
barriers, located on both sides of your
vehicle.
R a vehicle approaches you too closely at the
side.
R you have adopted a sporty driving style with
high cornering speeds. R
you clearly brake or accelerate.
R a driving safety system intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is switched off.
R the off-road program is activated (vehicles
without the ON&OFFROAD package).
R off-road program 1 or 2 is activated
(vehicles with the ON&OFFROAD package).
R the LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package).
R a loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist X
Make sure that the radar sensor system
(Y page 285) and Active Blind Spot Assist
(Y page 281) are activated in the on-board
computer.
X Turn the SmartKey to position 2in the
ignition lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Towing a trailer
When you attach a trailer, make sure you have
correctly established the electrical
connection. This can be accomplished by
checking the trailer lighting. Active Blind Spot
Assist is then deactivated. The indicator lamp
lights up yellow in the exterior mirrors and the
Active Blind Spot Assist Currently Active Blind Spot Assist Currently
Unavailable See Operator's Manual Unavailable See Operator's Manual
message appears in the multifunction
display. 250
Driving systemsDriving and parking

AUTO program
Select the AUTO program for a more
comfortable ride under all normal driving
conditions.
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
X Selector wheel : :engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
AUTO indicator =appears in the
multifunction display.
R Highway level is set.
R ADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving
conditions.
R The automatic transmission selects the
automatic drive program for a
comfortable driving style that provides
for optimum fuel consumption. SPORT program
Select the SPORT program for sporty,
dynamic handling.
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
X Selector wheel : :engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
SPORT indicator =appears in the
multifunction display.
R High-speed level, –15 mm compared to
highway level, is set.
R ADS (Adaptive Damping System) adapts
sporty damping characteristics to the
current operating and driving conditions.
R The automatic transmission selects the
automatic drive program for a sporty
driving style.
R The sporty accelerator pedal curve is
selected, e.g. the accelerator pedal no 254
Driving systemsDriving and pa
rking

longer has to be pressed as far to
accelerate.
R The sporty steering curve is selected,
e.g. greater force is required when
steering.
i You cannot select the SPORT program if
LOW RANGE has been selected. The
Drive Program SPORT Not in LOW Drive Program SPORT Not in LOW
RANGE RANGE message then appears in the
multifunction display.
Snow program Select the snow program for driving in snow
with or without snow chains.
X Selector wheel : :engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
Snow indicator =appears in the
multifunction display. R
Highway level is set.
R ADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving
conditions.
R 4ETS and the differential lock are
adapted for driving on snow-covered
roads.
R The automatic transmission selects the
automatic drive program for a
comfortable driving style that provides
for optimum fuel consumption.
R The soft accelerator pedal curve is
selected, e.g. the accelerator pedal must
be pressed significantly further to
accelerate.
R The optimum gear for pulling away is
engaged.
Trailer program Select the trailer program when towing a
trailer. Driving systems
255Driving and parking Z

X
Selector wheel :
:engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
Trailer indicator =appears in the
multifunction display.
R Highway level is set.
R ADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving
conditions.
R The automatic transmission selects the
automatic drive program for a
comfortable driving style that provides
for optimum fuel consumption, changing
gear at optimum points.
R While pulling away, the differential locks
are engaged. Off-road driving systems
4MATIC (permanent four-wheel drive) If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, weather and traffic
conditions. 4MATIC is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
! Never tow the vehicle with one axle
raised. This may damage the transfer case.
Damage of this sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remain either on the ground
or be fully raised. Observe the instructions
for towing the vehicle with all wheels in full
contact with the ground.
! A function or performance test should
only be carried out on a two-axle
dynamometer. Before you operate the
vehicle on such a dynamometer, please
consult a qualified workshop. You could otherwise damage the drive train or the
brake system.
4MATIC ensures that all four wheels are
permanently driven. Together with ESP ®
and
4ETS, it improves the traction of your vehicle
whenever a drive wheel spins due to
insufficient grip.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if
you use winter tires (M+S tires), with snow
chains if necessary.
Further information about "Driving off-road"
(Y page 197).
DSR (Downhill Speed Regulation) Important safety notes
DSR assists you when driving downhill. It
keeps the speed of travel at the speed set on
the on-board computer. The steeper the
downhill gradient, the greater the DSR
braking effect on the vehicle. When driving on
flat stretches of road or on an uphill gradient,
the DSR braking effect is minimal or
nonexistent.
DSR controls the set speed when it is active
and the automatic transmission is in the D,
R or Nposition. By accelerating or braking,
you can always drive at a higher or a lower
speed than that set on the on-board
computer.
Further information about "Driving off-road"
(Y page 197).
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor
override the laws of physics. DSR cannot take
account of road, weather and traffic
conditions. DSR is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
You are always responsible for keeping
control of the vehicle and for assessing
whether the downhill gradient can be
managed. DSR may not always be able to
keep to the set speed, depending on road 256
Driving systemsDriving and parking

message appears in the multifunction
display.
Off-road program 2
X
Selector wheel : :engaged: briefly press
selector wheel :.
Selector wheel :extends.
X To select: turn selector wheel :until
indicator lamp ;comes on.
Off-road indicator =appears in the
multifunction display.
R Off-road level 1 is set to +2.4 in
(+60 mm) above the highway level.
R DSR is switched on.
R The differential lock is closed.
Off-road program 2 automatically switches to
off-road program 1 if you drive faster than
30 mph (45 km/h).
Select off-road program 2 for rough terrain,
e.g. for steep and/or rough terrain or driving
on rocky terrain.
i Your vehicle has an automatically
activated differential lock for the transfer case. It controls the balance between the
front and rear axles.
The differential lock improves the vehicle’s
traction. 4ETS (Y
page 72) controls the
balance between both wheels on an axle.
You can only activate off-road program 2
when driving at speeds of 25 mph (40 km/h)
or below.
LOW RANGE off-road gear (vehicles
with the ON&OFFROAD package) Important safety notes
G
WARNING
If you select the LOW RANGE off-road gear on
a slippery road surface, the wheels could lose
traction:
R if you remove your foot from the
accelerator pedal when driving
R if off road ABS intervenes when braking
If the wheels lose traction. the vehicle can no
longer be steered. There is an increased
danger of skidding and accidents.
Never select the LOW RANGE off-road gear
when driving on slippery road surfaces. G
WARNING
If you do not wait for the transfer case gear
change process to complete, the transfer
case could remain in the neutral position. The
power transmission to the driven wheels is
then interrupted. There is a danger of the
vehicle rolling away unintentionally. There is
a risk of an accident.
Wait until the transfer case shift process is
completed.
Do not turn off the engine while changing gear
and do not shift the automatic transmission
to another position. Driving systems
259Driving and parking Z

Messages in the multifunction display
If a gear change process has not been successful, the following messages may be displayed
in the multifunction display: Display messages Possible causes/consequences and
M MSolutions LOW RANGE Max.
LOW RANGE Max.
Speed 40 km/h Speed 40 km/h You have been driving faster than 40 km/h. Additionally, the
indicator lamp on the button in the center console blinks.
X
Drive more slowly to carry out the gear change process. LOW LOW
RANGE
RANGE Shift
Shiftto
to
Position N Briefly
Position N Briefly The transmission is in position
Dand you are driving at below
40 km/h.
X Shift the transmission to Nto complete the gear change
process. LOW LOW
RANGE
RANGE Shifting
Shifting
Canceled Please
Canceled Please
Reactivate Reactivate The gear change process was not carried out.
X
Ensure that all gear change conditions are fulfilled and carry out
the gear change process again. LOW RANGE Stop LOW RANGE Stop
Apply Apply
Parking
Parking Brake
Brake A warning tone also sounds. The gear change process has not been
completed. LOW RANGE is in the neutral position. There is no
connection between the engine and the drive wheels.
! Do not drive any further. You could otherwise damage the
vehicle's drive train.
X Stop the vehicle. Take into account the road and traffic
conditions when doing this.
X Depress the electric parking brake (Y page 189).
X Carry out the gear change process again.
If the gear change process has been carried out, the LOW LOWRANGE
RANGE
Stop Apply Parking Brake
Stop Apply Parking Brake message disappears.ON&OFFROAD menu in the COMAND
display (vehicles with the
ON&OFFROAD package) You can display some driving systems, driving
programs and additional information in the
COMAND display.
X
Make sure that the SmartKey is in position
2 in the ignition lock.
X Make sure that COMAND is activated, see
the separate COMAND operating
instructions.
X Press function button :.
The corresponding displays appear in the
COMAND display:
R level control
R steering angle
R vehicle's angle of inclination 262
Driving systemsDriving and parking

R
uphill or downhill gradient in percentage
R on-road/off-road program selected
R condition of the differential lock for the
transfer case
R the LOW RANGE off-road gear is selected
R condition of the LOW RANGE off-road
gear
R the on-road trailer program is selected Towing a trailer
Important safety notes
G
WARNING
Installing an unsuitable ball coupling may
result in overloading of the trailer tow hitch
and the rear axle. This applies especially if the
ball coupling in question is longer or angled
differently. This could seriously impair the
driving characteristics and the trailer can
come loose. There is a risk of an accident.
You should only ever install a ball coupling
that has the permissible dimensions and that
is designed to meet your trailer-towing
requirements. Do not modify the ball coupling
or the trailer tow hitch.
You will find the values approved by the
manufacturer on the vehicle identification
plates and those for the towing vehicle under
"Technical data" ( Ypage 457). G
WARNING
If the ball coupling is not installed correctly or
not secured with the bolt provided and the
corresponding spring cotter, the trailer may
come loose. There is a risk of an accident.
Always install and secure the ball coupling as
described. Before every journey, ensure that
the ball coupling is secured with the bolt and
the corresponding spring cotter. G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
G
WARNING
When the vehicle/trailer combination begins
to lurch, you could lose control of it. The
vehicle/trailer combination could even
rollover. There is a risk of an accident.
On no account should you attempt to
straighten up the vehicle/trailer combination
by increasing the speed. Reduce vehicle
speed and do not countersteer. Apply the
brake as necessary.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
Please observe the manufacturer's operating
instructions for the trailer coupling if a
detachable trailer coupling is used.
Couple and uncouple the trailer carefully. If
you do not couple the trailer to the towing
vehicle correctly, the trailer could become
detached.
Make sure that the following values are not
exceeded:
R the permissible trailer drawbar noseweight
R the permissible trailer load
R the permissible rear axle load of the towing
vehicle
R the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
The applicable permissible values, which
must not be exceeded, can be found:
R in the vehicle documents
R on the identification plates for the trailer
tow hitch and the trailer
R on the vehicle identification plate
If the values differ, the lowest value applies. Towing a trailer
263Driving and parking Z

Ball coupling recess
Holes in the ball coupling and ball coupling recess
X Insert the ball coupling horizontally into ball
coupling recess ;in the direction of the
arrow until the holes in ball coupling =are
in line with the holes in ball coupling
recess ?. Bolt
X
Slide bolt Ainto the hole in the ball
coupling recess and the ball coupling to the
stop. Bolt and spring cotter
X
Secure the bolt using spring cotter B. Correctly installed and secured ball coupling
X
Check the ball coupling, bolt and spring
cotter for correct installation.
If the ball coupling cannot be correctly
mounted, remove the ball coupling. Under
these circumstances, the ball coupling must
not be used for trailer towing.
If the ball coupling cannot be locked and the
key cannot be removed, remove the ball
coupling and clean it. If the ball coupling can
still not be installed (locked) after it has been
cleaned, remove the ball coupling. The trailer
tow hitch must then not be used to tow a
trailer, as safe operation cannot be
guaranteed.
Have the entire trailer tow hitch checked at a
qualified specialist workshop. Coupling up a trailer
! Do not connect the trailer's brake system
(if featured) to the hydraulic brake system 266
Towing a trailerDriving and parking