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Instruments and controls131Depending on the equipment of the
vehicle, the following services are available:
● Emergency services and support
in the case of a vehicle
breakdown
● Wi-Fi hotspot
● Smartphone application
● Remote control, e.g. location of the vehicle, activation of horn and
lights, control of central locking system
● Stolen vehicle assistance
● Vehicle diagnostics
● Destination download
Notice
The OnStar module of the vehicle is
deactivated after ten days without an
ignition cycle. Functions requiring a
data connection will be available
again after switching on the ignition.OnStar buttons
Privacy button
Press and hold j until a message is
heard to activate or deactivate the
transmission of the vehicle location.
Press j to answer a call or to end a
call to an advisor.
Press j to access the Wi-Fi settings.
Service button
Press Z to establish a connection to
an advisor.
SOS button
Press [ to establish a priority
emergency connection to a specially
trained emergency advisor.
Status LED
Green: The system is ready with
activated transmission of the vehicle
location.
Green flashing: The system is on a
call.
Red: A problem arose.
Off: The system is ready with
deactivated transmission of the
vehicle location or the system is in
standby mode.
Red / green flashing for a short period of time: The transmission of the
vehicle location has been
deactivated.
OnStar services
General services
If you need any information e.g.
opening hours, points of interest and
destinations or if you need any
support e.g. in the case of a vehicle
Page 137 of 327

Lighting135LightingExterior lighting.......................... 135
Light switch .............................. 135
Automatic light control .............136
High beam ............................... 136
High beam assist .....................136
Headlight flash ......................... 138
Headlight range adjustment ....138
Headlights when driving abroad .................................... 138
Daytime running lights .............139
LED headlights ........................ 139
Hazard warning flashers ..........142
Turn lights ................................ 142
Front fog lights ......................... 143
Rear fog light ........................... 143
Parking lights ........................... 143
Reversing lights .......................144
Misted light covers ...................144
Interior lighting ........................... 144
Instrument panel illumination control ..................................... 144
Interior lights ............................ 144
Reading lights .......................... 145
Sunvisor lights ......................... 146Lighting features ........................146
Centre console lighting ............146
Entry lighting ............................ 146
Exit lighting .............................. 146
Battery discharge protection ....147Exterior lighting
Light switch
Turn light switch:
AUTO:automatic light control
switches automatically
between daytime running
light and headlight8:sidelights9:headlights
When switching on the ignition,
automatic light control is active.
Control indicator 8 3 111.
Page 139 of 327

Lighting137ActivationTurn signal lever with MENU button
The high beam assist is activated by
pushing the turn signal lever twice at
a speed above 25 mph.
Turn signal lever with f button
Activate high beam assist by pressing
f once.
The green control indicator f
illuminates continuously when the
assist is activated, the blue one 7
illuminates when high beam is on.
Control indicator f 3 111.
Deactivation With high beam on, pull the turn signallever once to deactivate high beam
assist. If a headlight flash is activated when the high beam is off, the high
beam assist will remain activated.
Pushing the indicator lever to activate
manual high beam will deactivate
high beam assist. It is also
deactivated when fog lights are
switched on.
Turn signal lever with MENU button:
when high beam is off, push indicator lever twice to deactivate high beam
assist.
Turn signal lever with f button:
press f once to deactivate high
beam assist.
The latest setting of the high beam
assist is being stored and remains set when the ignition is switched on
again.
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Lighting139Every time the ignition is switched on,
f flashes for approx. four seconds as
a reminder.
To deactivate, use the same
procedure as described above. f will
not flash when function is
deactivated.
Control indicator f 3 111.
Daytime running lights Daytime running lights increase
visibility of the vehicle during daylight.
They are switched on automatically
during daytime when engine is
running.
The system switches between
daytime running lights and headlights automatically, depending on the
lighting conditions. Automatic light
control 3 136.
LED headlights LED headlight system contains a
variety of particular LEDs in each
headlight which enables the control of different lighting programs.Light distribution and intensity of light
are variably triggered depending on
the lighting conditions, road type and
driving situation. The vehicle adapts
the headlights automatically to the
situation to enable optimal light
performance for the driver.
Some functions of the LED headlights
can be deactivated or activated in the vehicle personalisation menu. Select
the relevant setting in Settings, I
Vehicle in the Info-Display. Vehicle
personalisation 3 126.
High beam assist can not be
deactivated.
The following lighting functions are
available with light switch in position
AUTO or 9.
Town lightActivated automatically at a speed up to approx. 34 mph and in situations
with exterior ambient light. The light is
wide and symmetrical. A special
beam pattern is designed to avoid
glare for other road users.
Country light
Activated automatically at a speed
above approx. 34 mph when driving
in rural areas. The illumination of the current lane and the side of the roadis improved. Oncoming and
preceding vehicles are not dazzled.
Curve light
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140LightingParticular LEDs, based on steeringangle and speed, are additionally
triggered to improve lighting in
curves. This function is activated at
speeds from 25 mph to 43 mph and
reacts to steering angle.
Corner light
When turning off, depending on the
steering angle and the turn signal light, particular LEDs are triggered
which illuminate the direction of
travel. It is activated up to a speed of
25 mph.
Reverse parking function
To assist driver's orientation when
parking, both corner lights and
reversing light illuminate when
headlights are on and reverse gear is engaged. They remain illuminated for
a short time after disengaging reverse gear or until driving faster than
4 mph in a forward gear.
High beam assistThis feature allows the high beam to
function as main driving light at night.
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Each LED on
right or left side can be triggered or
faded out particularly according to the traffic situation. This gives the best
light distribution without dazzling
other road users. Once activated,
high beam assist remains active and switches high beam on and off
depending on surrounding
conditions. The latest setting of the
high beam assist will remain after the ignition is switched on again.
High beam assist includes a special
motorway mode. When driving faster
than 71 mph on motorways, the light
beam becomes smaller to avoid
dazzling of oncoming traffic. When
following vehicles ahead or passing,
mirror dazzling for these vehicles is
reduced.
Activation
Indicator lever with MENU button
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Lighting143Activate temporary flashing by
holding the lever just before the
resistance point. Turning lights will
flash until lever is being released.
To activate three flashes, tap the
lever briefly without passing the
resistance point. With a trailer
connected, the turn signal flashes
six times and tone frequency
changes.
Front fog lights
Operated by pressing >.
Light switch in position AUTO:
switching on front fog lights will switch headlights on automatically.
Rear fog light
Operated by pressing ø.
Light switch in position AUTO:
switching on rear fog light will switch
headlights on automatically.
Light switch in position 8: rear fog
light can only be switched on with
front fog lights.
The vehicle rear fog light is
deactivated when towing a trailer or a
plug is connected with the socket, e.
g. when a bicycle carrier is used.
Parking lights
When the vehicle is parked, the
parking lights on one side can be
activated:
1. Switch off ignition.
2. Move turn signal lever all the way up (right parking lights) or down
(left parking lights).
Confirmed by a signal and the
corresponding turn signal control
indicator.
Page 146 of 327
144LightingReversing lights
The reversing light comes on when
the ignition is on and reverse gear is
selected.
Misted light covers
The inside of the light housing may
mist up briefly in poor, wet and cold weather conditions, in heavy rain or
after washing. The mist disappears
quickly by itself; to help switch on the
headlights.Interior lighting
Instrument panelillumination control
Brightness of the following lights can
be adjusted in position AUTO when
the light sensor detects night
conditions, or in position 8 or 9.
● instrument panel illumination
● Info-Display
● illuminated switches and operation elements
Push and then turn A until the desired
brightness is obtained.
Interior lights
During entry and exit of the vehicle,
the front and rear courtesy lights
automatically switch on and then off
after a delay.
Notice
In the event of an accident with
airbag deployment the courtesy
lights are turned on automatically.
Page 148 of 327

146LightingIllustration shows rear reading light.Sunvisor lights
Illuminates when the cover is opened.Lighting features
Centre console lighting Spotlight incorporated in the interior
lighting comes on when headlights
are switched on.
Entry lighting Welcome lighting
The following lights are switched on
for a short time by unlocking the
vehicle with the electronic key:
● headlights
● puddle lights in both outside mirrors
● tail lights
● number plate lights
● instrument panel light
● interior lights
Some functions are only operable
when it is dark outside to facilitate
locating the vehicle.
The lighting switches off immediately
when the ignition is switched on.
Starting off 3 17.This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Info-Display.
Info-Display 3 120.
Vehicle personalisation 3 126.
The settings can be saved for the key
being used 3 24.
The following lights will additionally
switch on when the driver's door is
opened:
● illumination of some switches
● Driver Information Centre
● door pocket lights
Exit lighting The following lights will switch on
when the ignition is switched off:
● interior lights
● instrument panel light
● puddle lights in both outside mirrors