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112Instruments and controlsDiagnostic report
The vehicle automatically transmits
diagnostic data to OnStar which
sends a monthly email report to you
and your preferred workshop.
Note
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, ABS,
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 in to your account.
Destination download
A desired destination can be directly
downloaded to the navigation system.
Press Z to call an advisor and
describe the destination or point of
interest.The advisor can look up any address
or point of interest and directly send
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 advisor.
To change the PIN, press Z to call an
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
advisor or log in 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.Note
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 ortriggered. 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.
Note
If the transmission of the vehicle
location is deactivated, some
services are no longer available.
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Lighting115Light switch with Automatic light
control
Turn light switch:
AUTO:automatic light control:
Headlights are switched on
and off automatically
depending on external
lighting conditions.m:activation or deactivation of
the automatic light control.
Switch turns back to AUTO.8:sidelights9:headlightsA status message in the Driver
Information Centre indicates the
current status of the automatic light
control.
When switching on the ignition,
automatic light control is active.
When headlights are on, 8
illuminates. Control indicator 8
3 95.
Tail lights
Tail lights are illuminated together
with headlights and sidelights.
Additional lights in the boot lid frame
Additional tail light assemblies,
existing of tail lights and hazard
warning flasher lights, are located in
the boot lid frame. They are
illuminated when lights are activated
and the boot lid is open. Additional tail lights are only intended as position
lights when the boot lid is open. They
are not to be used while driving.Automatic light control
When the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
lights and headlights automatically
depending on the external lighting
conditions and information given by
the rain sensor system.
When the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
lights and headlights automatically
depending on the external lighting
conditions.
Page 129 of 267

Climate control127Climate controlClimate control systems.............127
Heating and ventilation system 127
Air conditioning system ...........128
Electronic climate control system .................................... 130
Auxiliary heater ........................134
Air vents ..................................... 135
Adjustable air vents .................135
Fixed air vents ......................... 135
Maintenance .............................. 135
Air intake ................................. 135
Pollen filter ............................... 135
Air conditioning regular
operation ................................ 136
Service .................................... 136Climate control systems
Heating and ventilation system
Controls for: ● temperature
● air distribution
● fan speed
● demisting and defrosting
Heated rear window Ü 3 35.
Temperature
red:warmblue:coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributions:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
All combinations are possible.
Fan speed
Adjust the air flow by switching the fan to the desired speed.
Page 130 of 267
128Climate controlDemisting and defrosting
●Press V: fan automatically
switches to higher speed, the air
distribution is directed towards
the windscreen.
● Set temperature control to warmest level.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Air conditioning system
In addition to the heating and
ventilation system, the air
conditioning system has controls for:
n:cooling4:air recirculation
Heated seats ß 3 55, Heated
steering wheel * 3 79.
Cooling n
Press n to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and climate control fan is switched on.
Press n again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore
condensation may form and drip from under the vehicle.
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130Climate controlDemisting and defrosting the
windows V
●
Press V; fan automatically
switches to higher speed, the air
distribution is directed towards
the windscreen.
● Set temperature control to warmest level.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Note
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 3 140.
Electronic climate control system
The dual zone climate control allows
different climatisation temperatures
for driver side and front passenger
side.
In automatic mode, temperature, fan
speed and air distribution are
regulated automatically.
Controls for:
● temperature on driver side
● air distribution
● fan speed
● temperature on front passenger side
n:coolingAUTO:automatic mode4:manual air recirculationV:demisting and defrosting
Heated rear window Ü 3 35, Heated
seats ß 3 55, Ventilated seats 3 55,
Heated steering wheel * 3 79.
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Climate control131
Climate control settings are shown onthe Graphic-Info-Display, or
depending on the version, on Colour- Info-Display. Setting modifications
are briefly popped-up in both
displays, superimposed over the
currently displayed menu.
The electronic climate control system
is only fully operational when the
engine is running.
Automatic mode AUTO
Basic setting for maximum comfort:
● Press AUTO; the air distribution
and fan speed are regulated
automatically.
● Open all air vents to allow optimised air distribution in
automatic mode.
● Press n to switch on optimal
cooling and demisting. The LED in the button illuminates to
indicate activation.
● Set the preselected temperatures for driver and front
passenger using the left and right
rotary knobs. Recommended
temperature is 22 °C.
When the soft top is opened, the
Climate control adapts the automatic
mode to the changed climatic
environment.
The fan speed regulation in automatic mode can be changed in the Settings menu.
Vehicle personalisation 3 104.
Temperature preselection
Set temperatures to the desired
value.
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132Climate control
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.
Note
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 3 140.
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
Settings menu in the Info-Display.
Vehicle personalisation 3 104.
Note
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 3 140.
Manual settings Climate control system settings can
be changed by activating the buttons
and rotary knobs as follows.
Changing a setting will deactivate the automatic mode.
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Climate control133Fan speed Z
Press lower button to decrease or
upper button to increase fan speed as shown in the illustration. The fan
speed is indicated by the number of
segments in the display.
Pressing the lower button for longer:
fan and cooling are switched off.
Pressing the upper button for longer:
the fan runs at maximum speed.
To return to automatic mode: Press
AUTO .
Air distribution s, M , K
Press appropriate button for desired
adjustment. Activation is indicated by
illumination of the LED in the button.
s:to windscreen and front door
windows (air conditioning is
activated in the background to
help preventing windows from
fogging)M:to head area via adjustable air ventsK:to foot well and windscreen
All combinations are possible.
Return to Automatic air distribution:
press AUTO .
Cooling n
Press n to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and climate control fan is switched on.
Press n again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) when outside
temperature is above a specific level. Therefore condensation may form
and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons. When the cooling
system is switched off, no engine