Page 110 of 265

108Instruments and controlsthe driver's door or the whole
vehicle whilst unlocking.
Relock Remotely Unlocked
Doors : Activates or deactivates
the automatic relock function
after unlocking without opening
the vehicle.OnStar
OnStar is a personal connectivity and
service assistant with integrated
Wi-Fi hotspot. The OnStar service is
available 24 hours a day, seven days
a week.
Notice
OnStar is not available for all
markets. For further information,
contact your workshop.
Notice
In order to be available and
operational, OnStar needs a valid
OnStar subscription, functioning
vehicle electrics, mobile service and
GPS satellite link.
To activate the OnStar services and
set up an account, press Z and speak
with an advisor.
Depending on the equipment of the vehicle, the following services areavailable:
● 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
Page 129 of 265

Climate control127
If the minimum temperature Lo is set,
the climate control system runs at
maximum cooling if cooling n is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at maximum heating.
Notice
If n is switched on, reducing the set
cabin temperature can cause the
engine to restart from an Autostop or inhibit an Autostop.
Stop-start system 3 135.
Demisting and defrosting the
windows V
●
Press V. The LED in the button
illuminates to indicate activation.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Switch on heated rear window Ü.
● To return to previous mode: press V. To return to Automatic
mode: press AUTO.
Setting of automatic rear window
heating can be changed in the
Info-Display. Vehicle personalisation
3 105.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If s is pressed with the fan switched
on and the engine running, an
Autostop will be inhibited until s is
pressed again or until the fan is
switched off.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
If s is pressed with the fan switched
on while the engine is in an
Autostop, the engine will restart
automatically.
Stop-start system 3 135.
Manual settings Climate control system settings can
be changed by activating the buttons
and rotary knobs as follows.
Changing a setting will deactivate
Automatic mode.
Page 173 of 265

Driving and operating171The camera is mounted between thenumber plate lights and has a viewing
angle of 130°.
The area displayed by the camera is
limited. The distance of the image that
appears on the display differs from
the actual distance.
Warning symbols
Warning symbols are indicated as
triangles 9 on the picture, which show
obstacles detected by the rear
sensors of the advanced parking
assist.
Additionally 9 appears on the top line
of the Info-Display with the warning to
check the vehicle surrounding.
Display settings
Brightness and contrast can be set by
tapping the touch screen display
when rear view camera is active.
Deactivation
The camera is deactivated when a
certain forward speed is exceeded or
if reverse gear is not engaged for
approx. ten seconds.
Rear view camera can be manually
deactivated in the vehicle
personalisation menu in the
Info-Display. Vehicle personalisation
3 105.
Deactivation of guiding lines and
warning symbols
Activation or deactivation of the visual guiding lines and the warning
symbols can be changed by touch
buttons in the lower zone of the
display.
Fault
Fault messages are displayed with a
9 on the top line of the Info-Display.The rear view camera may not
operate properly when:
● The surrounding is dark.
● The sun or the beam of headlights is shining directly into
the camera lens.
● Ice, snow, mud, or anything else covers the camera lens. Clean
the lens, rinse it with water, and
wipe it with a soft cloth.
● The vehicle is towing a trailer. ● The vehicle had a rear end accident.
● There are extreme temperature changes.
Traffic sign assistant
Functionality The traffic sign assistant system
detects designated traffic signs via a
front camera and displays them in the
Driver Information Centre.
Page 214 of 265

212Vehicle careIf the tyre pressure must be reduced
or increased, switch off ignition. After
adjusting tyre pressure switch on
ignition and select the relevant setting on the page Tyre load in the Driver
Information Centre 3 96.
Temperature dependency The tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which means at 20 °C.
The pressure increases by nearly
1.5 psi for a 10 °C temperature
increase. This must be considered
when warm tyres are checked.
The tyre pressure value displayed in
the Driver Information Centre shows
the real tyre pressure. A cooled down
tyre will show a decreased value,
which does not indicate an air leak.Tyre pressure monitoring
system
The tyre pressure monitoring system
checks the pressure of all four tyres
once a minute when vehicle speed
exceeds a certain limit.Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
The current tyre pressures can be
shown in the Vehicle Information
Menu ? in the Driver Information
Centre.
The menu can be selected by
pressing the buttons on the turn
signal lever.
Press MENU to select the Vehicle
Information Menu ? .
Turn the adjuster wheel to select the
tyre pressure monitoring system.
Midlevel display: