lights MERCEDES-BENZ GL 2016 User Guide

Problems with the Occupant Classification System (OCS) Be sure to observe the notes on "System self-test" ( Y
page 56).
Problem
Possible causes/consequences and P Solutions
The PASSENGER AIR
BAG OFF indicator
lamp lights up and
remains lit, even
though the front-
passenger seat is occu-
pied by an adult or a
person of a stature cor-
responding to that of an
adult. The classification of the person on the front-passenger seat is
incorrect. X
Make sure the conditions for a correct classification of the per-
son on the front-passenger seat are met ( Y
page 53).X
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used. X
Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center.
The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or does not stay
on.
The front-passenger
seat is: R
unoccupied R
occupied by the
weight of a child up
to 12 months old in a
child restraint sys-
tem OCS is malfunctioning. X
Make sure there is nothing between the seat cushion and the
child seat. X
Make sure that the entire base of the child restraint system rests
on the seat cushion of the front-passenger seat. The backrest of
the forward-facing child restraint system must lie as flat as pos-
sible against the backrest of the front-passenger seat. If nec-
essary, adjust the position of the front-passenger seat. X
When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight using the front-
passenger seat adjustment. This could result in the seat belt and
the child restraint system being pulled too tightly. X
Check for correct installation of the child restraint system.
Make sure that the head restraint does not apply a load to the
child restraint system. If necessary, adjust the head restraint
accordingly. X
Make sure that no objects are applying additional weight onto
the seat. X
If the PASSENGER AIR BAG OFF indicator lamp remains off, do
not install a child restraint system on the front-passenger seat.
It is recommended that you install the child restraint system on
a suitable rear seat. X
Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center. Occupant safety 57
Safety Z

Deployment of Emergency Tensioning
Device s an d air bags
Important safet y notes
G WARNING
The air bag parts are hot after an air bag has
bee n deployed . There is a ris k of injury.
Do no t touch th e air bag parts . Hav e a
deployed air bag replaced at a qualified spe -
cialis t workshop as soo n as possible.
G WARNING
A deployed air bag no longer offers any pro -
tection and canno t provid e th e intended pro -
tection in an accident. There is an increase d
ris k of injury.
Hav e th e vehicle towed to a qualified special-
ist workshop in order to hav e a deployed air
bag replaced.
It is important fo r your safet y and that of your
passenger to hav e deployed air bags replaced
and to hav e any malfunctionin g air bags
repaired. Thi s will hel p to mak e sur e th e air
bags continue to perform their protective
function fo r th e vehicle occupant s in th e
event of a crash .
G WARNING
Pyrotechnic Emergency Tensioning Devices
that hav e bee n deployed are no longer opera-
tional and are unable to perform their inten-
ded protective function . Thi s poses an
increase d ris k of injury or eve n fatal injury.
Therefore, hav e pyrotechni c Emergency Ten -
sioning Devices whic h hav e bee n triggere d
immediately replaced at a qualified specialis t
workshop .
An electric moto r is used by PRE-SAF E ®
to
trigger th e tightenin g of th e seat belt in haz -
ardous situations. Thi s procedur e is reversi-
ble.
If Emergency Tensioning Devices are trig-
gered or air bags are deployed , you will hear a
bang, and a small amount of powder may also be released. The u restrain t system warn -
in g lamp lights up.
Only in rar e cases will th e ban g affec t your
hearing. The powder that is release d gener-
ally doe s no t constitute a health hazard , but it
may caus e short-term breathin g difficulties in
people wit h asthm a or other respirator y prob-
lems. To avoid this, you may wish to get out of
th e vehicle or ope n th e windows as soo n as it
is saf e to do so.
Ai r bags and pyrotechni c Emergency Tension-
in g Devices (ETDs) contain perchlorat e mate-
rial , whic h may require special handlin g a nd
re gard fo r th e environment. National guide-
lines mus t be observed durin g disposal. In
California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Method of operation Durin g th e first stage of a collision , th e
restrain t system contro l uni t evaluates impor -
tant physical dat a relatin g to vehicle deceler -
ation or acceleration , suc h as:R
duration R
direction R
intensit y
Based on th e evaluation of this data, th e
restrain t system contro l uni t triggers th e
Emergency Tensioning Devices durin g a fron -
ta l or rea r collision .
An Emergency Tensioning Devic e can only be
triggered, if: R
th e ignition is switched on R
th e component s of th e restrain t system are
operational; see "Restrain t system warnin g
lamp " ( Y
page 45) R
th e belt tongue is engage d in th e buckl e on
th e respective front-passenger seat
The Emergency Tensioning Devices in th e
rea r compartmen t are triggere d independ -
entl y of th e loc k status of th e seat belts.
If th e restrain t system contro l uni t detects a
more severe accident, further component s of58
Occupant safety
Safety

Drivin g safet y systems
Overview of drivin g safet y systemsIn this section , you will fin d information about
th e following drivin g safet y systems :R
AB S ( A nti-loc k B rakin g S ystem)
( Y
page 68) R
BA S ( B rake A ssist S ystem) ( Y
page 69 )R
BA S PLU S ( B rake A ssist S ystem Plus )
( Y
page 69 )R
COLLISION PREVENTION ASSIST PLU S
(distanc e warnin g function and Adaptive
Brak e Assist) ( Y
page 70 )R
ES P ®
( E lectronic S t ability P r ogram)
( Y
page 73) R
EB D ( E lectroni c B r ak e forc e D i stribution )
( Y
page 75) R
ADAPTIV E BRAKE ( Y
page 76 )R
PRE-SAF E ®
Brak e ( Y
page 76)R
STEE R CONTROL ( Y
page 77)
Important safet y notes
If you fail to adapt your drivin g style or if you
are inattentive , th e drivin g safet y systems can
neither reduce th e ris k of an acciden t no r
override th e laws of physics. Driving safet y
systems are merely aids designed to assist
driving. You are responsible fo r maintainin g
th e distanc e to th e vehicle in front, fo r vehicle
speed, fo r braking in goo d time, and fo r stay-
in g in lane. Always adapt your drivin g style to
suit th e prevailin g road and weather condi-
tion s and maintain a saf e distanc e from th e
vehicle in front. Drive carefully.
The drivin g safet y systems described only
wor k as effectively as possible when there is
adequat e contact between th e tires and th e
road surface. Please pay special attention to
th e note s on tires , recommended minimum
tire tread depths, etc. ( Y
page 404).
In wintr y drivin g conditions, always use winte r
tires (M+ S tires ) and if necessary, snow
chains. Only in this way will th e drivin g safet y systems described in this section wor k as
effectively as possible.
ABS (Anti-lock Braking System)
General information AB S regulates brake pressure in suc h a way
that th e wheels do no t loc k when you brake .
Thi s allow s you to continue steerin g th e vehi-
cl e when braking .
The % AB S warnin g lamp in th e instrumen t
cluster lights up when th e ignition is switched
on . It goe s out when th e engin e is running .
AB S works from a speed of about 5 mph
(8 km/h), regardles s of road-surfac e condi-
tions. AB S works on slipper y surfaces, eve n
when you only brake gently.
Important safet y notes
i Observ e th e "Important safet y notes" sec -
tion ( Y
page 68) .
G WARNING
If AB S is faulty, th e wheels could loc k when
braking . The steerability and braking charac -
teristics may be severely impaired. Addition -
ally, further drivin g safet y systems are deac -
tivated. There is an increase d danger of skid-
din g and accidents .
Drive on carefully. Hav e AB S checke d imme-
diately at a qualified specialis t workshop .
Whe n AB S is malfunctioning, other systems ,
includin g drivin g safet y systems , will also
becom e inoperative . Observ e th e information
on th e AB S warnin g lamp ( Y
page 327) and
display message s whic h may be shown in th e
instrumen t cluster ( Y
page 291).
Braking X
If ABS intervenes: continue to depress th e
brake peda l vigorousl y until th e braking sit -
uation is over. X
To make a full brak e application:
depress th e brake peda l wit h full force.68
Driving safety systems
Safety

X
To deactivate: press the 7 button on
the SmartKey twice in rapid succession.
The battery check lamp ( Y
page 85) of the
SmartKey flashes twice briefly and lights up
once, then KEYLESS-GO is deactivated. X
To activate: press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
KEYLESS-GO start functionBear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Changing the settings of the locking
systemYou can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own. X
To change the setting: press and hold
down the 6 and 7 buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice
( Y
page 85).
i If the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the 7 or 6 button:R
locks or R
unlocks the vehicle
The SmartKey now functions as follows: X
To unlock the driver's door: press the
6 button once.X
To unlock centrally: press the 6 but-
ton twice. X
To lock centrally: press the 7 button. The KEYLESS-GO function is changed as fol-
lows: X
To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door. X
To unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door. X
To lock centrally: touch the outer sensor
surface on one of the door handles
( Y
page 83). X
To restore the factory settings: press
and hold down the 6 a nd 7 b uttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice ( Y
page 85).
Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered ( Y
page 78).
There are several ways to turn off the alarm: X
To turn the alarm off with the SmartKey:
press the 6 or 7 button on the
SmartKey.
or X
Insert the SmartKey into the ignition lock.
or X
To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or X
Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.84
SmartKey
Opening and closing

If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically. X
To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key X
Push release catch C in the direction of
the arrow and at the same time remove
mechanical key D from the SmartKey.
For further information about: R
unlocking the driver's door ( Y
page 92)R
unlocking the cargo compartment
( Y
page 97) R
locking the vehicle ( Y
page 92)
Inserting the mechanical key X
Push mechanical key D completely into
the SmartKey until it engages and release
catch C is back in its basic position.
SmartKey battery
Important safety notes
G WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/Hazard-
ousWaste/Perchlorate/index.cfm.
Checking the battery X
Press the 7 or 6 button.
The battery is working properly if battery
check lamp C lights up briefly.
The battery is discharged if battery check
lamp C does not light up briefly. X
Change the battery ( Y
page 85).
i If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the 7 or 6 button:R
locks or R
unlocks the vehicle
i You can get a battery at any qualified spe-
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery. X
Take the mechanical key out of the Smart-
Key ( Y
page 84).SmartKey 85
Opening and closing Z

The last position of the steering column is
stored when you: R
switch off the ignition. R
save the setting with the memory function
( Y
page 127).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident, the steering column
will move upwards when the driver's door is
opened. This occurs irrespective of the posi-
tion of the SmartKey in the ignition lock. This
makes it easier to exit the vehicle and rescue
the occupants.
The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY fea-
ture is activated in the on-board computer
( Y
page 285).
Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever C
forwards or back. Exterior mirrors
Adjusting the exterior mirrors
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 165). X
Press button C for the left-hand exterior
mirror or button D for the right-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights up in red.124
Mirrors
Seats, steering wheel and mirrors

Useful information ............................ 130
Exterior lighting ................................ 130
Interior lighting ................................. 135
Replacing bulbs ................................. 136
Windshield wipers ............................ 139 129
Lights and windshield wipers

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).
Exterior lighting
General notesFor reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched
on even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations.
Setting the exterior lighting
Setting options
Exterior lighting can be set using: R
the light switch R
the combination switch ( Y
page 132)R
the on-board computer ( Y
page 284) Light switch Operation
G c
Left-hand standing lampsH d
Right-hand standing lampsI `
Parking lamps, license plate and
instrument cluster lightingJ X
Automatic headlamp mode, control-
led by the light sensorK X
Low-beam/high-beam headlamps

running lamps or the parking lamps and the
low-beam headlamps are switched on or off
automatically depending on the brightness
of the ambient light. X
To switch on automatic headlamp
mode: turn the light switch to X .
G WARNING
When the light switch is set to X , the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
X .
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
Only for Canada:
The daytime running lamps improve the visi-
bility of your vehicle during the day. The day-
time running lamps function is required by law
in Canada. It cannot therefore be deactivated.
When the engine is running and the vehicle is
stationary: if you move the selector lever from
a drive position to P , the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in bright ambient light: if you
turn the light switch to ` , the daytime
running lamps and parking lamps switch on.
If the engine is running and you turn the light
switch to X , the manual settings take
precedence over the daytime running lamps.
USA only:
The daytime running lamps improve the visi-
bility of your vehicle during the day. To do this,
the daytime running lamps function must be
switched on using the on-board computer
( Y
page 284).
If the engine is running and you turn the light
switch to ` or X , the manual settings take precedence over the daytime running
lamps.
Low-beam headlamps
Even if the light sensor does not detect that it
is dark, the parking lamps and low-beam
headlamps switch on when the ignition is
switched on and the light switch is set to the
X position. This is a particularly useful
fu nction in the event of rain and fog. X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position 2 or start the engine. X
Turn the light switch to X .
The green X indicator lamp in the instru-
ment cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of
thick fog. Please take note of the country-
specific regulations for the use of rear fog
lamps. X
To switch on the rear fog lamps: turn the
SmartKey to position 2 in the ignition lock
or start the engine. X
Turn the light switch to X or X .X
Press the ^ button.
The yellow ^ indicator lamp in the
instrument cluster lights up. X
To switch off the rear fog lamp: press the
^ button.
The yellow ^ indicator lamp in the
instrument cluster goes out.
Parking lamps
! If the battery has been excessively dis-
charged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start. Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the ` parking lamps
for several hours. If possible, switch on the
d right or the c left standing lamp.Exterior lighting 131
Lights and windshield wipers Z

X
To switch on: turn the light switch to ` .
The green ` indicator lamp in the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is illumina-
ted. X
To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is in
position 0 .X
Turn the light switch to c (left-hand side
of the vehicle) or d (right-hand side of
the vehicle).
Vehicles towing a trailer: both the right and
left standing lamps (tail lamps) are always
illuminated on the trailer.
Combination switch
Turn signal
C
High-beam headlampsD
Turn signal, right