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32Keys, doors and windowsRoof
Sunroof9 Warning
Take care when operating the
sunroof. Risk of injury, particularly to children.
Keep a close eye on the movable parts when operating them.
Ensure that nothing becomes
trapped in them as they move.
Switch on ignition to operate the
sunroof.
Open or close
Press switch 1 or switch 2 gently to
the first detent: sunroof is opened or
closed as long as the switch is
operated.
Press switch 1 or switch 2 firmly to the
second detent and then release: the
sunroof is opened or closed
automatically with safety function
enabled. To stop movement, operate the switch once more.
Raise or close
Press switch 3 or switch 4: sunroof is
raised or closed automatically with
safety function enabled.
If the sunroof is raised, it can be
opened in one step by pressing
switch 1.
Sunblind The sunblind is operated manually.Close or open the sunblind by sliding. When the sunroof is open, the
sunblind is always open.Dirt and debris may collect on the
sunroof seal or in the track that could
cause an issue with sunroof
operation, noise or plug the water
drainage system. Periodically open
the sunroof and remove any
obstacles or loose debris. Wipe the
sunroof seal and roof sealing area
using a clean cloth, mild soap, and
water. Do not remove grease from the sunroof.
General hints
Safety function
If the sunroof encounters resistance
during automatic closing, it is
immediately stopped and opened
again.
Override safety function
In the event of closing difficulties due
to frost or the like, press and hold
switch 2. The sunroof closes without
safety function enabled. To stop
movement, release the switch.
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Keys, doors and windows33Initialising after a power failure
After a power failure, it may only be
possible to operate the sunroof to a
limited extent. Have the system
initialised by your workshop.
Page 49 of 231

Seats, restraints47Airbag deactivation
The front passenger airbag system
must be deactivated if a child restraint
system is to be fitted on this seat. The side airbag and curtain airbag
systems, the belt pretensioners and
all driver airbag systems will remain active.
The front passenger airbag system
can be deactivated via a key-
operated switch on the right side of the instrument panel.
Use the ignition key to choose the
position:c:front passenger airbags are
deactivated and will not inflate
in the event of a collision.
Control indicator c
illuminates continuously in the
centre console. A child
restraint system can be
installed in accordance with
the chart Child restraint
installation locations 3 49.
No adult person is allowed to
occupy the front passenger
seat.d:front passenger airbags are
active. A child restraint system
must not be installed.9 Danger
Risk of fatal injury for a child using
a child restraint system on a seat
with activated front passenger
airbag.
Risk of fatal injury for an adult
person on a seat with deactivated
front passenger airbag.
As long as the control indicator c is
not illuminated, the front passenger
airbag system will inflate in the event
of a collision.
Change status only when the vehicle
is stopped with the ignition off.
Status remains until the next change.
Control indicator for airbag
deactivation 3 83.
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Instruments and controls87Illuminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear, set selector lever to N.
3. Move out of the flow of traffic as quickly as possible without
impeding other vehicles.
4. Switch off ignition.
9 Warning
When the engine is off,
considerably more force is needed
to brake and steer. During an
Autostop the brake servo unit will still be operational.
Do not remove key until vehicle is
stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Check oil level before seeking the
assistance of a workshop 3 166.
Low fuel
i illuminates or flashes yellow.
Illuminates
Level in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Refuelling 3 154.
Catalytic converter 3 131.
Bleeding the diesel fuel system
3 171.
Immobiliser d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Have the cause of the fault remedied
by a repairer.
Exterior light
8 illuminates green.
The exterior lights are on 3 107.
High beam
C illuminates blue.
Illuminates when high beam is on or
during headlight flash 3 108 , or when
high beam is on with high beam
assist, adaptive forward lighting
3 110.
Adaptive forward lighting f illuminates or flashes yellow.
Illuminates
The adaptive forward lighting system
needs a service.
Seek the assistance of a workshop. Adaptive forward lighting 3 110.
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Instruments and controls105On-demand diagnostics
At any time e.g. if the vehicle displays
a service message, press Z to
contact an OnStar advisor and ask to complete a real-time diagnostic check
to directly determine the issue.
Depending on the results, the advisor
will provide further support.
Monthly vehicle diagnostics
The vehicle automatically transmits
diagnostic data to OnStar which
sends a monthly email report to you
and your preferred workshop.
Notice
The workshop notification function
can be disabled in your account.
The report contains the status of key
operating systems of the vehicle like
engine, transmission, airbags,
antilock brakes, and other major
systems. It also provides information
on possible maintenance items and
tyre pressure (only with tyre pressure
monitoring system).
To look at the information in greater
detail, select the link within the email
and log into your account.Destination download
A desired destination can be directly
downloaded to the navigation system.
Press Z to call an OnStar advisor and
describe the destination or point of
interest.
The OnStar advisor can look up any
address or point of interest and
directly download the destination to
the built-in navigation system.
OnStar settings
OnStar PIN
To have full access to all OnStar
services, a four-digit PIN is required. The PIN has to be personalised when first talking to an OnStar advisor.
To change the PIN, press Z to call an
OnStar advisor.
Account data
An OnStar subscriber has an
account, where all the data is stored. To request a change of the account
information, press Z and talk to an
OnStar advisor or logon to your
account.If the OnStar service is used on
another vehicle, press Z and request
that the account be transferred to the
new vehicle.
Notice
In any case, if the vehicle is disposed
of, sold or otherwise transferred,
immediately inform OnStar about the changes and terminate the
OnStar service on this vehicle.
Vehicle location
The vehicle location is transmitted to
OnStar when service is requested or triggered. A message on the Info-
Display informs about this
transmission.
To activate or deactivate the
transmission of the vehicle location,
press and hold j until an audio
message is heard.
The deactivation is indicated by the
status light flashing red and green for a short period of time and each time
the vehicle is started.
Notice
If the transmission of the vehicle
location is deactivated, some
services are no longer available.
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110LightingCaution
Have the adjustment of the
headlights checked after
deactivation.
We recommend consulting a
workshop.
Vehicles with adaptive forward
lighting system
1. Key in ignition switch.
2. Pull turn signal lever and hold (headlight flash).
3. Switch on ignition.
4. After approx. three seconds, an acoustic signal sounds.
The headlights are aimed
automatically.
Every time the ignition is switched on,
control indicator f flashes as a
reminder for approx. four seconds.
For deactivation, operate the same
procedure as described above.
Control indicator f will not flash when
function is deactivated.
Control indicator f 3 87.
Daytime running lights
Daytime running lights increase
visibility of the vehicle during daylight.
They are switched on automatically
when ignition is on.Adaptive forward lighting
The Adaptive forward lighting
functions are only available with Bi-
Xenon headlights. Light range, light
distribution and intensity of light are
variably triggered depending on the
light conditions, weather and road
type.
Playstreet lighting
Activated automatically at low speed
up to approx. 20 mph. The light beam
is turned at an angle of -5°/3° to the
roadside.
Town lighting Activated automatically at a speed up
to approx. 30 mph and when street
lights are detected by the light sensor. The light range is reduced by an
extended light distribution.
Country lighting
Activated automatically at a speed
range between approx. 30 and
72 mph. The beam of light and the
brightness is different between the
left and the right side.
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116LightingExit lighting
Low beam, sidelights and tail lights
illuminate the surrounding area for an adjustable time after leaving the
vehicle.
Switching on
Activation, deactivation and duration of lighting of this function can be
changed in the vehicle settings.
Vehicle personalisation 3 99.
1. Switch off ignition.
2. Remove ignition key.
3. Open driver's door.
4. Pull turn signal lever.
5. Close driver's door.
If the driver's door is not closed the
lights switch off after a few seconds.
The lighting is switched off
immediately if the turn signal lever is pulled while the driver's door is open.
Battery discharge protection To prevent discharge of the battery
when the ignition is switched off,
some interior lights are switched off
automatically after some time.
Page 128 of 231

126Driving and operatingIgnition switch positions0:ignition off1:steering wheel lock released,
ignition off2:ignition on, for diesel engine:
preheating3:startingStarting the engine
Manual transmission: operate clutch.
Automatic transmission: operate
brake and move the selector lever to
P or N.
Do not operate the accelerator pedal. Diesel engine: turn the key to position2 for preheating until control
indicator ! extinguishes.
Turn the key briefly to position 3 and
release: an automatic procedure
operates the starter with a short delay
as long as the engine is running, see
'Automatic Starter Control'.
Before restarting or to switch off the engine, turn the key back to position
0 .
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Key lock release Some vehicles with an automatic
transmission are equipped with an electronic key lock release system.
The key lock release is designed to
prevent ignition key removal unless
the selector lever is in P.
Starting the vehicle at low
temperatures
Starting the engine without additional
heaters is possible down to -25 °С for diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct
fuel, performed services and a
sufficiently charged battery. With
temperatures below -30 °C the
automatic transmission requires a
warming phase of approx. 5 minutes.
The selector lever must be in position P .