light MERCEDES-BENZ GL 2016 Owners Manual

If you leave your lane, under certain circum-
stances the vehicle will brake briefly on one
side. This is meant to assist you in bringing
the vehicle back to the original lane.
If a lane-correcting brake application occurs,
display C appears in the multifunction dis-
play.
A lane-correcting brake application can only
be made after driving over a solid, recogniz-
able lane marking. Before this, a warning
must be given by means of intermittent vibra-
tion in the steering wheel. In addition, a lane
with lane markings on both sides must be
recognized. The brake application also
slightly reduces vehicle speed.
i A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if: R
you clearly and actively steer, brake or
accelerate. R
you cut the corner on a sharp bend. R
you have switched on the turn signal. R
a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist. R
you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration. R
ESP ®
is switched off.R
the transmission is not in position D . R
on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established. R
the off-road program is activated (vehicles
without the ON&OFFROAD package). R
off-road program 1 or 2 is activated (vehi-
cles with the ON&OFFROAD package). R
the LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package). R
when a loss of tire pressure or a defective
tire has been detected and displayed.
There is a possibility that the Active Lane
Keeping Assist could misjudge the given traf-
fic situation. An inappropriate brake applica-
tion may be interrupted at any time if you: R
steer slightly in the opposite direction R
switch on the turn signal R
clearly brake or accelerate
A lane-correcting brake application is inter-
rupted automatically if: R
a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist. R
lane markings can no longer be recognized.
Switching on Active Lane Keeping Assist X
Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
or Adaptive ( Y
page 282).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
( Y
page 281) are shown in green. Active
Lane Keeping Assist is ready for use.
If Standard is selected, no warning vibra-
tion occurs if: R
you switch on the turn signals. In this
event, the warnings are suppressed for a
certain period of time. R
a driving safety system intervenes, such
as ABS, BAS or ESP ®
.
When Adaptive is selected, no warning
vibration occurs if: Driving systems 253
Driving and parking Z

R
you switch on th e tur n signals. In this
event , th e warnings are suppressed fo r a
certain period of time. R
a drivin g safet y system intervenes, e.g.
ABS, BA S or ES P ®
.R
you accelerat e hard, e.g. kickdown .R
you brak e hard.R
you steer actively, e.g. swerve to avoid an
obstacle or chang e lanes quickly.R
you cut th e corner on a shar p bend.
Towing a trailer
Whe n you attach a trailer , mak e sur e you hav e
correctl y established th e electrica l connec -
tion . This can be accomplished by checking
th e trailer lighting . Lane-correcting brak e
application doe s no t take plac e when towin g
a trailer . Active Lan e Keepin g Assis t is no t
activated and th e lines in th e assistanc e
graphi c are gray.
On-road program s (vehicles wit h th e
ON&OFFROAD package)
General notes
The on-road programs assist you during on -
road drivin g and th e off-road programs when
drivin g off-road ( Y
page 258).
The following program message s remain in
th e multifunction display until th e corre-
spondin g vehicl e level has been set . Up to off-
road level 2, you can hide th e program mes -
sage s usin g th e 8 or v butto n on th e
multifunction steerin g wheel. AUT O program
Selec t th e AUTO program fo r a mor e com-
fortable rid e under all normal drivin g condi-
tions.
Your selection remain s stored eve n if you
remov e th e SmartKey from th e ignition lock.X
Selecto r wheel C engaged : briefl y press
selector whee l C .
Selecto r whee l C extends. X
To select : tur n selector whee l C until indi-
cator lamp D comes on .
AUTO indicator

! A function or performance test should
only be carried out on a two-axle dyna-
mometer. 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.
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 198).
DSR (Downhill Speed Regulation) General notes
DSR is an aid to assist you when driving down-
hill. It keeps the speed of travel at the speed
selected on the on-board computer. The
steeper the downhill gradient, the greater the
DSR braking effect on the vehicle. When driv-
ing on flat stretches of road or on an uphill
gradient, the DSR braking effect is minimal or
nonexistent.
DSR controls the vehicle’s speed when it is
activated and the transmission is in position
D , R or N . You can drive at a higher or a lower
speed than that set on the on-board computer
at any time by accelerating or braking.
Important safety notes
G WARNING
If the speed driven and the set speed deviate
and you activate DSR on a slippery road sur-
face, the wheels may lose traction. There is an
increased danger of skidding and accidents.
Before switching DSR on, please take into
consideration the road surface and the differ-
ence between driving speed and the set
speed.
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor over-
ride the laws of physics. DSR cannot take
account of road, weather and traffic condi-
tions. 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 con-
trol 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 surface and tire
conditions. Select a set speed suitable for the
prevailing conditions and when necessary,
apply the brakes manually.
Activating DSR
X
Press button C .
Indicator lamp D lights up.
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.
General notes
C
LOW RANGE off-road gear buttonD
LOW RANGE off-road gear indicator lamp
HIGH RANGE
Position for all normal on-
road driving conditions
LOW RANGE
Off-road position for driv-
ing off-road and fording
The transmission ratio
between the engine and
wheels is only approx-
imately one third of that in
the HIGH RANGE road
position. Drive torque is
thus proportionately
higher.
Do not use LOW RANGE: R
on slippery road surfa-
ces, e.g. in the case of
slush R
on snow or ice-covered
roads R
if you have mounted
snow chains to your
vehicle The LOW RANGE off-road gear assists you in
driving off-road and when fording. When LOW
RANGE is engaged, the engine’s performance
characteristics and the gearshifting charac-
teristics of the automatic transmission are
adapted for this purpose.
Further information about "Driving off-road"
( Y
page 198). You will find information about
driving safety systems in conjunction with
LOW RANGE in the "Safety" section
( Y
page 68).
From HIGH RANGE to LOW RANGE
! Only change from LOW RANGE to HIGH
RANGE if: R
the engine is running. R
the transmission is in position NR
you are driving at a speed below
40 km/h X
Press LOW RANGE button C .
Indicator lamp D flashes.
When the gear change is complete, indica-
tor lamp D lights up. LOW RANGE indica-
tor appears in the multifunction display and
in the status indicator.
While indicator lamp D is flashing, you can
cancel the gear change by pressing LOW
RANGE button C again.
i You cannot activate LOW RANGE if the
SPORT drive program is activated. The
LOW RANGE Not in Drive Program
"Sport" message then appears in the mul-
tifunction display.
From LOW RANGE to HIGH RANGE
! Only change from LOW RANGE to HIGH
RANGE if: R
the engine is running. R
the transmission is in position NR
you are driving at a speed below
70 km/h260
Driving systems
Driving and parking

so will result in a loss of function of the
brake systems of both the vehicle and the
trailer. X
Shift the transmission to position P .X
Apply the vehicle's electric parking brake. X
Start the engine. X
Vehicles with the AIRMATIC package:
select highway level. X
Vehicles with ADS: set ADS to AUTO or
COMF .X
Switch off the engine. X
Close the doors and tailgate. X
Couple up the trailer. X
Establish the electrical connection
between the vehicle and the trailer. X
Check that the trailer lighting system is
working.
i Vehicles with the AIRMATIC package:
with a trailer attached, the vehicle will
always remain at highway level. When cou-
pling up a trailer, please observe the fol-
lowing: R
Unless highway level has been set man-
ually, the vehicle is automatically low-
ered to highway level. This is the case if a
speed of 5 mph (8 km/h) is reached. R
High-speed level is not available.
These restrictions apply to all accessories
powered through a connection to the trailer
power socket of your vehicle, e.g. a bicycle
carrier.
Observe the maximum permissible trailer
dimensions (width and length).
Most U.S. states and all Canadian provinces
require by law: R
Safety chains between the towing vehicle
and the trailer. The chains should be cross-
wound under the trailer drawbar. They must
be fastened to the vehicle's trailer cou-
pling, not to the bumper or the axle. Leave enough play in the chains to make
tight cornering possible. R
A separate brake system for certain types
of trailer. R
Safety switch for braked trailers. Check the
specific legal requirements applicable to
your state.
If the trailer becomes detached from the
towing vehicle, the safety switch applies
the trailer brakes.
Towing a trailer There are numerous legal requirements con-
cerning the towing of a trailer, e.g. speed
restrictions. Make sure that your car/trailer
combination complies with the local regula-
tions: R
in your place of residence R
in the location to which you are driving
The police and local authorities can provide
reliable information.
Observe the following when towing a trailer: R
To gain driving experience and to become
accustomed to the new handling charac-
teristics, you should practice the following
in a traffic-free location: -
cornering -
stopping -
backing up R
Before driving, check: -
trailer tow hitch -
safety switch for braked trailers -
safety chains -
electrical connections -
lights -
wheels R
Adjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer. R
If the trailer has electronically controlled
brakes, pull away carefully. Brake manually Towing a trailer 267
Driving and parking Z

using the brake controller and check
whether the brakes function correctly. R
Se cure any objects on the trailer to prevent
the cargo from slipping when the vehicle is
in motion. R
When you couple up a trailer, check at reg-
ular intervals that the load is firmly secured.
If the trailer is equipped with trailer lights
and brakes, check the trailer to ensure that
these are working. R
Bear in mind that the han dlin g will be less
st able when towing a trailer than when driv-
ing wit hout one. Avoid sudden steering
movements. R
The vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient cli mbin g capability and a longer
braking dist ance.
It is more susceptible to side winds and
requires more careful steering. R
If poss ible, do not brake suddenly, but
instead depr ess the brake pedal moder-
ate ly at first so that the trailer can activate
it s brakes. Then increase the pressure on
the brake pedal. R
If the automat ic transmission repeat edly
shifts between gears on uphill or down hill
gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
A lower gear and lower speed reduce the
risk of engine failure. R
When driv ing down hill, shift to a lower gear
to uti liz e the engine's braking effect.
Avoid continuous brake application as this
m ay
overheat the vehicle brakes and, if
instal led, the trailer brakes.R
If the coolant temperature increases dra-
matical ly while the air-cond it ioning system
is swit ched on, switch off the air-condition-
ing system.
Coolant heat can also be dissipated by
opening the win dows and switching the ventilation blowe r and the interior temper-
ature to the highest leve l.R
When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of the vehicle/trailer
combination, you require additional road
space in relation to the vehicle you are
overtaking before you can change back to
the original lane.
Decoupling a trailer
G WARNIN G
If you uncouple a trailer wit h th e overrun
brak e engaged , you could trap your han d
between th e vehicl e and th e trailer drawbar.
Ther e is a ris k of injury.
Do no t uncouple a trailer if th e overrun brak e
is engaged .
G WARNIN G
Vehicles wit h leve l control :
The vehicl e is lowered as soo n as you discon -
nect th e trailer cable. This could result in your
limb s or those of other people that are
between th e vehicl e body and tires or under-
neath th e vehicl e bein g trapped . Ther e is a
ris k of injury.
Mak e sure that nobody is in th e immediat e
vicinity of th e whee l housing s or under th e
vehicl e when you disconnect th e trailer cable.
! Do not disc onnect a trailer wit h an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the reboun d-
ing of the overrun brake. X
Sh ift the transmission to position P .X
Ap ply the vehicle's electr ic parking brake.X
St art the engine. X
Close the doors and tailgate. X
Apply the trailer's parking brake.268
Towing a trailer
Driving and parking

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops ( Y
page 29).
Important safety notes
G WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
G WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The
operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop. The on-board computer only shows messages
or warnings from certain systems in the mul-
tifunction display. You should therefore make
sure your vehicle is operating safely at all
times.
For an overview, see the instrument panel
illustration ( Y
page 35).
Displays and operation
Instrument cluster lighting The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is located on the
bottom left of the instrument cluster
( Y
page 35). X
Turn the brightness control knob clockwise
or counter-clockwise.
If you turn the light switch to X , ` or
X , the brightness is dependent upon
the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Speedometer with segments
The speedometer is divided into segments
only on vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available. R
DISTRONIC PLUS activated ( Y
page 205):
One or two segments in the set speed
range light up. R
DISTRONIC PLUS detects a vehicle in front
that is driving at a slower speed than the
stored speed:
The segments between the speed of the
vehicle in front and the stored speed light
up.272
Displays and operation
On-board computer and displays

Service menu
Depending on the equipment installed in the
vehicle, you have the following options in the
Serv.
menu: R
Calling up display messages in message
memory ( Y
page 290)R
Restarting the tire pressure loss warning
system ( Y
page 412) or checking the tire
pressure electronically ( Y
page 414)R
Calling up the service due date
( Y
page 375)
Settings menu
Introduction
Depending on the equipment installed in the
vehicle, In the Settings
menu you have the
following options: R
Changing the instrument cluster settings
( Y
page 283) R
Changing the light settings ( Y
page 284)R
Changing the vehicle settings
( Y
page 285) R
Changing the convenience settings
( Y
page 285) R
Restoring the factory settings
( Y
page 286) Instrument cluster submenu Selecting the distance unit
The Display Unit Speed-/Odometer:
function allows you to choose whether cer-
tain displays appear in kilometers or miles in
the multifunction display. X
Press the Y or e button on the steer-
ing wheel to select the Sett.
menu.X
Press the d or c button to select the
Instrument Cluster
submenu.X
Press v to confirm. X
Press the d or c button to select the
Display Unit Speed-/Odometer
func-
tion.
You will see the selected setting: km
or
miles
. X
Press the v button to save the setting.
The selected unit of measurement for dis-
tance applies to: R
Digital speedometer in the Trip menuR
Odometer and the trip odometer R
Trip computer R
Current consumption and the range R
Navigation instructions in the Navi menuR
Cruise Control R
DISTRONIC PLUS R
ASSYST PLUS service interval display
Selecting permanent display
Using the Permanent display:
function,
you can switch on the outside temperature or
the additional speedometer in the multifunc-
tion display. X
Press the Y or e button on the steer-
ing wheel to select the Sett.
menu.X
Press the d or c button to select the
Instrument Cluster
submenu.X
Press v to confirm. X
Press the d or c button to select the
Permanent Display:
function.
The current selection outside tempera‐
ture , Dig. speedo [km/h] or Dig.
speedo [mph] appears.Menus and submenus 283
On-board computer and displays Z

i The multifunction display shows the unit
in the additional speedometer inverse to
the speedometer unit in the instrument
cluster. X
To change the setting: press v again.
Light submenu Setting the daytime running lamps
i This function is not available in Canada. X
Press the Y or e button on the steer-
ing wheel to select the Sett.
menu.X
Press the d or c button to select the
Lights
submenu.X
Press v to confirm.X
Press d or c to select the Daytime
Running Lights function.
If the Daytime Running Lights
function
has been switched on, the cone of light and
the

R
surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated
( Y
page 130). R
exterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close
all the doors and the tailgate, the exterior
lighting goes off after 15 seconds.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the fol-
lowing light up: R
Parking lamps R
Daytime running lamps R
Side marker lamps R
Surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Light. Delay
function,
the interior lighting remains on for
20 seconds after you remove the SmartKey
from the ignition lock. X
Press the Y or e button on the steer-
ing wheel to select the Settings
menu.X
Press the d or c button to select the
Lights
submenu.X
Press v to confirm.X
Press the d or c button to select the
Lighting delayed sw.-off
function.
If the Interior
Lighting Delay function
has been switched on, the vehicle interior is
displayed in orange in the multifunction
display. X
Press the v button to save the setting. Vehicle submenu Activating/deactivating the automatic
door locking mechanism
If you activate the Automatic Door Lock
function, the vehicle is centrally locked above
a speed of approximately 9 mph (15 km/h). X
Press the Y or e button on the steer-
ing wheel to select the Sett
menu.X
Press the d or c button to select the
Vehicle
submenu. X
Press v to confirm. X
Press the d or c button to select the
Automatic Door Lock
function.
When the Automatic
Door Lock function
is activated, the vehicle doors are displayed
in orange in the multifunction display. X
Press the v button to save the setting.
For further information on the automatic lock-
ing feature, see ( Y
page 91).
Activating/deactivating the acoustic
locking verification signal
If you switch on the Acoustic
Lock function,
an acoustic signal sounds when you lock the
vehicle. X
Press the Y or e button on the steer-
ing wheel to select the Sett.
menu.X
Press d or c to select the Vehicle
submenu. X
Press v to confirm. X
Press the d or c button to select the
Acoustic Lock
function.
If the Acoustic
Lock function is activated,
the 7 symbol in the multifunction dis-
play lights up orange. X
Press the v button to save the setting.
Convenience submenu
Activating/deactivating the EASY-
ENTRY/EXIT feature
G WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicleMenus and submenus 285
On-board computer and displays Z