2020 VAUXHALL ASTRA K engine

140Climate controlClimate controlClimate control systems.............140
Air conditioning system ...........140
Electronic climate control system .................................... 142
Auxiliary heater ........................148
Air vents ..................................... 148
Adjustable air vents .................148
Fixed air vents ......................... 148
Maintenance .............................. 149
Air intake ................................. 149
Air conditioning regular operation ................................ 149
Service .................................... 149Climate control systems
Air conditioning system
Illustration shows functions which
may not be available for your
particular vehicle.
Controls for: ● Fan speed E
● Temperature
● Air distribution §,x and y
● Air conditioning A/C
● Demisting and defrosting %
● Air recirculation n
● Heated rear window and exterior
mirrors f
● Heated seats ß
Heated rear window Ü 3 44.
Heated exterior mirrors Ü 3 40.
Heated seats ß 3 55.
Ventilated seats A 3 55.
Heated steering wheel A 3 92.
Cooling A/C
Press A/C to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.

142Climate controlDemisting and defrosting the
windows V
●
Press V: the air distribution is
directed towards the windscreen.
● Set fan speed to highest level.
● Set temperature control to warmest level.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If
l is pressed with the fan switched
on and the engine running, an
Autostop will be inhibited until l 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 l is pressed with the fan switched
on while the engine is in an
Autostop, the engine will restart
automatically.
Stop-start system 3 156.
Electronic climate control system
The dual zone climate control allows
different temperatures for driver side
and front passenger side.
In automatic mode, temperature, fan
speed and air distribution are
regulated automatically.
Illustration shows functions which
may not be available for your
particular vehicle.
Controls for: ● Rotary knob for temperature on driver side
● Rotary knob for temperature on passenger side
● Climate control ON/OFF
● Heated windscreen 9
● Air conditioning A/C
● Manual air recirculation n
● Air distribution w, u and v
● Demisting and defrosting $

Climate control143● Heated rear window and exteriormirrors f
● Dual zone temperature synchronisation SYNC
● Heated seats q
● Fan speed increase y and
decrease x
● Ventilated seats r
● Steering wheel heating Z
● Automatic mode AUTO
Heated rear window f 3 44.
Heated exterior mirrors Ü 3 40.
Heated seats q 3 55.
Ventilated seats r 3 55.
Heated steering wheel Z 3 92.
Each change of settings is shown in
the Info Display for a few seconds.
The electronic climate control system
is only fully operational when the
engine is running.
Automatic mode AUTO
Basic settings for automatic control
with 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.

144Climate control● Press A/C 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 knob. Recommended
temperature is 22 °C.
The fan speed regulation in automatic mode can be changed in the Settings
menu.
Vehicle personalisation 3 123.
Temperature preselectionSet temperatures to the desired
value. The knob on the passenger
side changes the temperature for the
passenger side.The knob on the driver's side changes the temperature for the driver's side or for both sides
depending on activation of
synchronisation SYNC.
The selected temperature is indicated in the display of the knob.
If the minimum temperature Lo is set,
the climate control system runs at
maximum cooling, if cooling A/C is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at
maximum heating.
Notice
If A/C is switched on, reducing the
set cabin temperature can cause the engine to restart from an Autostop or
inhibit an Autostop.
Stop-start system 3 156.Dual zone temperature
synchronisation SYNC
Press SYNC to link passenger side
temperature setting to the driver side.
The LED in the button illuminates to
indicate activation.
When passenger side settings will be
adjusted, synchronisation is
deactivated and the LED
extinguishes.

Climate control145Demisting and defrosting the
windows $
● Press $. 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 f.
● Switch on heated windscreen 9 if available.
● To return to previous mode: press $, to return to automatic
mode: press AUTO.
Settings of automatic rear window
heating can be changed in the
Settings menu in the Info Display.
Vehicle personalisation 3 123.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If l is pressed with the fan switched
on and the engine running, an
Autostop will be inhibited until l 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 l is pressed with the fan switched
on while the engine is in an
Autostop, the engine will restart
automatically.
Stop-start system 3 156.Deactivation or activation of
Electronic climate control system
ON/OFF
Cooling, fan and automatic mode can
be switched off by pressing ON/OFF.
When the system is deactivated, the
LED in the button ON/OFF is not
illuminated.
Activation by pressing ON/OFF
again, A/C or AUTO . The LED in the
button illuminates to indicate
activation.

Climate control147Return to automatic air distribution:
press AUTO .
Cooling A/C
Press A/C 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 A/C 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 restart will be
requested by the climate control
system during an Autostop.
Exception: defrost system is activated and outside temperature above 0 °C
requests a restart.
Stop-start system 3 156.
The display will indicate A/C ON when
cooling is activated or A/C OFF when
the cooling is deactivated.
Manual air recirculation nPress n to activate the air
recirculation mode. The LED in the
button illuminates to indicate
activation.
Press n again to deactivate
recirculation mode.9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen may mist
up from outside, when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate w.

Climate control149Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Air conditioning regular
operation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
Service For optimal cooling performance, it is recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance check

150Driving and operatingDriving and
operatingDriving hints ............................... 151
Control of the vehicle ...............151
Steering ................................... 151
Starting and operating ...............151
New vehicle running-in ............151
Ignition switch positions ...........151
Power button ........................... 152
Retained power off ..................154
Starting the engine ..................154
Overrun cut-off ........................ 156
Stop-start system ....................156
Parking .................................... 159
Engine exhaust .......................... 161
Exhaust filter ............................ 161
Catalytic converter ...................162
AdBlue ..................................... 162
Automatic transmission ..............165
Transmission display ...............166
Gear selection ......................... 166
Manual mode ........................... 167
Electronic driving programmes 167
Fault ........................................ 168
Interruption of power supply ....168Manual transmission ..................169
Brakes ........................................ 169
Antilock brake system .............169
Parking brake .......................... 170
Brake assist ............................. 172
Hill start assist ......................... 172
Ride control systems .................172
Traction Control system ..........172
Electronic Stability Control ......173
Driver assistance systems .........175
Cruise control .......................... 175
Speed limiter ........................... 177
Adaptive cruise control ............178
Forward collision alert .............186
Following distance indication ...188
Active emergency braking .......189
Front pedestrian protection .....192
Parking assist .......................... 194
Side blind spot alert .................202
Rear view camera ...................203
Traffic sign assistant ................205
Lane keep assist .....................209
Fuel ............................................ 211
Fuel for petrol engines .............211
Fuel for diesel engines ............213
Refuelling ................................ 213
Trailer hitch ................................ 215
General information .................215Driving characteristics and
towing tips .............................. 216
Trailer towing ........................... 216
Towing equipment ...................217
Trailer stability assist ...............220