2018 VAUXHALL ASTRA J cruise control

194Driving and operating
The first button press shows the
current setting on the Driver
Information Centre. Additional button
presses will change this setting. The
chosen setting will remain until it is
changed. The alert timing will vary based on vehicle speed. The faster
the vehicle speed, the farther away
the alert will occur. Consider traffic
and weather conditions when
selecting the alert timing.Note that the alert timing sensitivity
setting is shared with the following
distance setting of the adaptive cruise
control. So changing the alert timing
sensitivity changes the adaptive
cruise control following distance
setting.
Deactivation
The system can be deactivated.
On forward collision alert with radar
sensor the system can be disabled by the personalisation menu, 3 124.
On forward collision alert with front
camera press V repeatedly until
Forward Collision Alert Off appears in
the Driver Information Centre.
If the forward collision alert was
deactivated, alert sensitivity is set to
"medium" when ignition is switched on next time.
The last selected setting will be stored
when the ignition is switched off.
General information9 Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching a vehicle ahead too
rapidly, it may not provide you
enough time to avoid a collision.
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.

Driving and operating195The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the
brakes.
System limitations
Forward collision alert is designed to
warn on vehicles only, but may react
also to other objects.
In the following cases, forward
collision alert may not detect a vehicle ahead or sensor performance is
limited:
● on winding roads
● when weather limits visibility, such as fog, rain, or snow
● when the sensor is blocked by snow, ice, slush, mud, dirt,
windscreen damage or affected
by foreign items, e.g. stickers
Following distance indication
The following distance indication
displays the distance to a preceding
moving vehicle. The front camera in
the windscreen and the Radar sensor
are used to detect the distance of a
vehicle directly ahead in the vehicle's
path. It is active at speeds above
25 mph.
When a preceding vehicle is detected
ahead, the distance is indicated in
seconds, displayed on a page in the
Driver Information Centre.
On Midlevel display, choose Info
Menu ? via MENU on the turn
signal lever and turn the adjuster
wheel to choose following distance
indication page, 3 114On Uplevel display, select Info menu
via steering wheel buttons and press o to select following distance
indication 3 114.
The minimum indicated distance is 0.5 seconds.
If there is no vehicle ahead or the
vehicle ahead is out of range, two
dashes will be displayed: -.- sec.
If Adaptive cruise control is active,
this page shows the alert sensitivity
setting instead of following distance
setting. 3 185.

304IndexAAccessories and vehicle modifications .......................... 226
Active emergency braking ..........196
Adaptive cruise control .......113, 185
Adjustable air vents ...................154
Airbag and belt tensioners .........109
Airbag deactivation ..............62, 109
Airbag label................................... 57 Airbag system .............................. 57
Air conditioning regular operation ................................ 155
Air conditioning system .............. 147
Air intake .................................... 155
Air vents...................................... 154
Antilock brake system ................ 175
Antilock brake system (ABS) .....111
Anti-theft alarm system ................35
Anti-theft locking system .............. 35
Appearance care ........................272
Armrest ................................... 52, 54
Armrest storage ........................... 71
Ashtrays ....................................... 98
Automatic anti-dazzle ..................40
Automatic light control ...............136
Automatic locking ........................28
Automatic transmission .............168
Autostop ..................................... 162
Auxiliary heater ........................... 154B
Battery discharge protection ......145
Battery voltage ........................... 123 Belts.............................................. 55
Bonnet ....................................... 228
Brake and clutch fluid .................276
Brake and clutch system ...........110
Brake assist ............................... 178
Brake fluid .................................. 231
Brakes ............................... 175, 231
Breakdown.................................. 270
Bulb replacement ....................... 234
C Capacities .................................. 291
Cargo management system ........81
Catalytic converter .....................168
Central locking system ................23
Centre console lighting ..............144
Changing tyre and wheel size ...259
Charging system ........................ 110
Child locks ................................... 29
Child restraint installation locations ................................... 66
Child restraints.............................. 64
Child restraint systems ................64
Climate control ............................. 15
Climate control systems .............146
Clock............................................. 94
CNG.................................... 105, 218

305Collision damage repair..............298
Control indicators........................ 108
Control of the vehicle .................157
Controls ........................................ 90
Convex shape .............................. 38
Coolant and antifreeze ...............276
Cruise control ....................113, 181
Cupholders .................................. 70
Curtain airbag system .................. 62
Curve lighting.............................. 137
D Danger, Warnings and Cautions ...4
Daytime running lights ...............137
Declaration of conformity ............296
Diesel fuel system bleeding .......233
Diesel particle filter ....................167
Door open .................................. 114
Doors ............................................ 29
Driver assistance systems ..........181
Driver Information Centre ...........114
Driving characteristics and towing tips .............................. 221
Driving hints ................................ 157
E Electric adjustment ......................38
Electrical system......................... 244
Electric parking brake .........110, 176
Electric parking brake fault .........110
Electronic climate control system 149Electronic driving programmes .
........................................ 170, 175
Electronic key system ...................21
Electronic Stability Control.......... 179
Electronic Stability Control and Traction Control system ..........111
Electronic Stability Control off..... 111
End-of-life vehicle recovery .......227
Engine compartment fuse box ...245
Engine coolant ........................... 230
Engine coolant temperature gauge ..................................... 106
Engine data ............................... 284
Engine exhaust .......................... 167
Engine identification ...................280
Engine oil ................... 229, 276, 281
Engine oil pressure ....................112
Entry lighting .............................. 144
Event data recorders ..................301
Exit lighting ................................ 144
Exterior care .............................. 272
Exterior light ............................... 113
Exterior lighting ....................12, 135
Exterior mirrors ............................. 38
F Fault ................................... 170, 175
First aid kit ................................... 86
Fixed air vents ........................... 154
Fog light ..................................... 113Fog lights ................................... 236
Folding mirrors ............................. 38
Following distance ......................111
Following distance indication ......195
Forward collision alert................. 192
Fragrance diffuser ........................97
Front airbag system .....................61
Front fog lights ........................... 141
Front seats.................................... 46
Front storage ................................ 71
Fuel............................................. 216
Fuel consumption - CO 2-
Emissions ............................... 220
Fuel for diesel engines ..............217
Fuel for natural gas operation ...218
Fuel for petrol engines ...............216
Fuel gauge ................................. 105
Fuel selector .............................. 105
Fuses ......................................... 244
G
Gauges ....................................... 103
Gear shifting ............................... 111
General information ...................221
Glovebox ..................................... 70
H Halogen headlights ....................234
Hand brake ......................... 175, 176
Hazard warning flashers ............140
Headlight flash ........................... 136