Vauxhall Astra (2016 year). Manual

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190

Driving and operating

Once the system is activated,

Reduce speed

The following distance can be set to

adaptive cruise control decelerates or

near, medium or far.

With adaptive cruise control active,

brakes if it detects a vehicle ahead,

hold thumb wheel turned to SET/-:

which is slower or closer than the

speed decreases continuously in

desired following distance.

large increments, or activate

repeatedly SET/-: speed decreases in

9 Warning

small increments.

Accelerating by the driver

If the vehicle is driven with adaptive

deactivates automatic braking by

cruise control active much slower

the system. This is indicated as a

than the desired speed, e.g. because

pop-up warning in the Driver

of a slower vehicle ahead, then the

Information Centre.

current speed can be stored and

maintained by turning the thumb

Increase speed

wheel to SET/-.

Press E; the current setting is shown

With adaptive cruise control active,

Resume stored speed

in the Driver Information Centre.

hold thumb wheel turned to RES/+:

If the system is switched on but

Press E again to change the

speed increases continuously in large

inactive, then turn thumb wheel to

following distance. The setting is also

increments, or activate repeatedly

RES/+ at a speed above 31 mph to

displayed in the top line of the Driver

RES/+: speed increases in small

resume the stored speed.

Information Centre.

increments.

If the vehicle is driven with adaptive

Setting the following distance

cruise control active much faster than

When adaptive cruise control detects

the desired speed, e.g. after

a slower moving vehicle in the driving

depressing the accelerator pedal,

path, it will adjust the vehicle speed to

then the current speed can be stored

maintain the following distance

and maintained by turning the thumb

selected by the driver.

wheel to SET/-.

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Driving and operating

191

If this symbol does not display, or

9 Warning

displays briefly, adaptive cruise

control will not respond to vehicles

The driver accepts full

ahead.

responsibility for the appropriate

following distance based on traffic,

Deactivation

weather and visibility conditions.

Following distance must be

Adaptive cruise control is deactivated

adjusted or the system switched

by the driver when:

off when required by the prevailing

● y is pressed.

conditions.

● The brake pedal is depressed.

● The clutch pedal is depressed for

Detecting the vehicle ahead

more than four seconds.

The selected following distance is

indicated by filled distance bars in the

● The gear selector lever of

adaptive cruise control page.

automatic transmission is moved

to N.

Note that the following distance

setting is shared with the sensitivity

The system is also automatically

setting of forward collision alert.

deactivated when:

Example: If setting 3 (far) is selected,

● Vehicle speed slows down below

then the driver is warned sooner

28 mph or accelerates above

before a possible collision, also if

120 mph.

adaptive cruise control is inactive or

● The Traction Control system (TC)

switched off.

is operating for more than

20 seconds.

The green illuminated vehicle ahead

● The Electronic Stability Control

control indicator A is displayed in the

(ESC) is operating.

speedometer when the system

detects a vehicle in the driving path.

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192

Driving and operating

● There is no traffic and nothing

Driver's attention

detected on the road sides for

●

Use adaptive cruise control

several minutes. In this case,

carefully on bends or mountain

there are no radar echoes and

roads, as it can lose the vehicle

the sensor may report that it is

ahead and need time to detect it

blocked.

again.

● The collision imminent braking

●

Do not use the system on

system is applying the brakes.

slippery roads as it can create

● The radar sensor is blocked by

rapid changes in tyre traction

an ice or water film.

(wheel spinning), so that you

● A fault is detected in the radar,

could lose control.

engine or brake system.

●

Do not use adaptive cruise

The stored speed is maintained.

When adaptive cruise control is

control during rain, snow or

deactivated automatically, the control

heavy dirt, as the radar sensor

9 Warning

indicator m illuminates white and a

can be covered by a water film,

warning symbol is displayed as a pop-

dust, ice or snow. This reduces or

When adaptive cruise control is

up in the Driver Information Centre.

suppresses completely the

deactivated, the driver must take

visibility. In case of sensor

over full brake and engine control.

blockage, clean the sensor

cover.

Switching off

System limits

Press C to switch off adaptive cruise

control. The control indicator m

● The system's automatic brake

extinguishes. The stored speed is

force does not permit hard

deleted.

braking and the braking level

Switching off the ignition also

may not be sufficient to avoid a

switches off adaptive cruise control

collision.

and deletes the stored speed.

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Driving and operating

193

● After a sudden lane change, the

entering or exiting a bend or if the

cruise control may not be able to

system needs a certain time to

bend gets stronger or weaker. If it no

brake the vehicle in time to avoid a

detect the next preceding

longer detects any vehicle ahead,

collision with a much slower vehicle or

vehicle. So if a new vehicle is

then control indicator A will

after a lane change. This is

detected, the system may

extinguish.

particularly true if driving fast or if the

accelerate instead of braking.

visibility is reduced due to weather

If the centrifugal force is too high in a

conditions.

● Adaptive cruise control does

bend, the system slows down the

ignore the oncoming traffic.

vehicle slightly. This braking level is

While entering or exiting a motorway,

not designed to avoid spinning off the

adaptive cruise control may lose the

● Adaptive cruise control does not

bend. The driver is responsible for

vehicle ahead and accelerate up to

brake for stopped vehicles,

reducing the selected speed before

the set speed. For this reason,

pedestrians or animals.

entering a bend and in general to

decrease the set speed before the

Bends

adapt the speed to the road type and

exit or before the entry.

to existing speed limits.

Vehicle path changes

The adaptive cruise control calculates

a predicted path based on the

Motorways

centrifugal force. This predicted path

If another vehicle enters your driving

On motorways, adapt the set speed

considers the current bend

path, adaptive cruise control will first

to the situation and the weather.

characteristic, but cannot consider a

consider the vehicle when it is

Always consider that adaptive cruise

future bend change. The system may

completely in your path. Be ready to

control has a limited visibility range, a

lose the current vehicle ahead or

take action and depress the brake

limited braking level and a certain

consider a vehicle which is not in the

pedal, if you need to brake more

reaction time to verify if a vehicle is on

actual lane. This can happen when

quickly.

the driving path or not. Adaptive

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194

Driving and operating

Hill and trailer considerations

Radar unit

consult a workshop to verify and

correct the adaptive cruise control

sensor position.

Settings

Settings can be changed in the Auto

collision preparation menu in the

System performance on hills and

vehicle personalisation, 3 132.

when towing a trailer depends on your

Fault

vehicle speed, vehicle load, traffic

conditions and the road gradient. It

If the adaptive cruise control does not

may not detect a vehicle in your path

work due to temporary conditions

while driving on hills. On steep hills,

(e.g. blockage by ice) or if there is a

you may have to use the accelerator

The radar unit is mounted behind the

permanent system error, then a

pedal to maintain your vehicle speed.

radiator grille below the brand

message is displayed in the Driver

When going downhill, especially

emblem.

Information Centre.

when towing a trailer, you may have

to brake to maintain or reduce your

9 Warning

speed.

Note that applying the brake

The radar unit was aligned

deactivates the system. It is not

carefully during manufacture.

recommended to use adaptive cruise

Therefore, after a frontal accident,

control on steep hills especially when

do not use the system. The front

towing a trailer.

bumper may appear to be intact,

however the sensor behind can be

out of position and react

incorrectly. After an accident,

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Driving and operating

195

Vehicle messages 3 126.

on vehicles equipped with

adaptive cruise control 3 188.

Forward collision alert

● Forward collision alert based on

front camera system

The forward collision alert can help to

avoid or reduce the harm caused by

on vehicles with traditional cruise

front-end crashes.

control or none 3 185.

Forward collision alert based on

radar system

The system uses the radar sensor

behind the radiator grille to detect a

vehicle directly ahead, in your path,

If a vehicle directly ahead is

within a maximum distance of

approached too quickly, a warning

150 metres.

chime and alert in the Driver

Information Centre is provided.

Activation

A precondition is that forward collision

Forward collision alert operates

alert is activated in the vehicle

automatically above walking speed,

personalisation menu 3 132 or that it

provided that Auto collision

A vehicle ahead is indicated by a

is not deactivated by pressing V

preparation setting is not deactivated

control indicator A.

(depending on the system, see

in the vehicle personalisation menu

following).

3 132.

Depending on the vehicle's

Selecting the alert sensitivity

equipment, there are two variants of

The alert sensitivity can be set to

the forward collision alert available:

near, medium or far.

● Forward collision alert based on

radar system

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196

Driving and operating

Alerting the driver

Press E; the current setting is shown

Note that the alert timing sensitivity

in the Driver Information Centre.

setting is shared with the following

A green illuminated vehicle ahead

Press E again to change the alert

distance setting of the adaptive cruise

control indicator A illuminates in the

sensitivity. The setting is also

control. So changing the alert timing

instrument cluster when the system

displayed in the top line of the Driver

sensitivity changes the adaptive

has detected a vehicle in the driving

Information Centre.

cruise control following distance

path. When the distance to a

setting.

preceding moving vehicle gets too

small or when approaching another

vehicle too rapidly and a collision is

imminent, the collision alert symbol

pops-up in the Driver Information

Centre. Simultaneously a warning

chime sounds.

Depress the brake pedal, if it is

required by the situation.

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Driving and operating

197

Settings

Alerting the driver

A green illuminated vehicle ahead

Settings can be changed in the Auto

control indicator A illuminates in the

collision preparation menu in the

instrument cluster when the system

vehicle personalisation 3 132.

has detected a vehicle in the driving

path.

Forward collision alert based on

front camera system

Forward collision alert uses the front

camera system in the windscreen to

detect a vehicle directly ahead, in

your path, within a distance of approx.

60 metres.

Press V; the current setting is shown

Activation

in the Driver Information Centre.

Press V again to change the alert

Forward collision alert operates

sensitivity.

automatically above 25 mph, if it is not

deactivated by pressing V, see

below.

When the distance to a preceding

Selecting the alert sensitivity

moving vehicle gets too small or when

The alert sensitivity can be set to

approaching another vehicle too

near, medium or far.

rapidly and a collision is imminent, the

collision alert symbol pops-up in the

Driver Information Centre.

Simultaneously a warning chime

sounds. Depress the brake pedal, if it

is required by the situation.

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198

Driving and operating

Deactivation

approaching a vehicle ahead too

Following distance

The system can be deactivated.

rapidly, it may not provide you

indication

Press V repeatedly until the following

enough time to avoid a collision.

message appears in the Driver

The following distance indication

The driver accepts full

displays the distance to a preceding

Information Centre.

responsibility for the appropriate

moving vehicle. The system uses,

following distance based on traffic,

depending on the vehicle equipment,

weather and visibility conditions.

either the radar behind the radiator

The complete attention of the

grille or the front camera in the

driver is always required while

windscreen to detect the distance of

driving. The driver must always be

a vehicle directly ahead in your lane.

ready to take action and apply the

It is active at speeds above 25 mph.

brakes.

When a preceding vehicle is detected

ahead, the distance is indicated in

System limitations

seconds, displayed on a page in the

The system is designed to warn only

Driver Information Centre 3 120.

for vehicles, but may react also to

Press MENU on the turn signal lever

other metallic objects.

to select Vehicle Information Menu

In the following cases, forward

and turn the adjuster wheel to

General information for both

collision alert may not detect a vehicle

choose following distance indication

variants of forward collision alert

ahead or sensor performance is

page.

limited:

9 Warning

● on winding roads

Forward collision alert is just a

● when weather limits visibility, e.g.

warning system and does not

fog, rain, or snow

apply the brakes. When

● when the sensor is blocked by

snow, ice, slush, mud, dirt, or

windscreen damage

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Driving and operating

199

The feature uses various inputs (e.g.

Brake preparation system

radar sensor, brake pressure, vehicle

When approaching a vehicle ahead

speed) to calculate the probability of

so quickly that a collision is likely, the

a frontal collision.

brake preparation system slightly

Active emergency braking operates

pressurises the brakes. This reduces

automatically above walking speed,

the response time, when a manual or

provided that Auto collision

automatic braking is requested.

preparation setting is not deactivated

The brake system is prepared so that

in the vehicle personalisation menu

braking can occur more rapidly.

3 132.

The system includes:

Emergency automatic braking

● brake preparation system

After the brake preparation and just

The minimum indicated distance is

● emergency automatic braking

before the imminent collision, this

0.5 s.

● forward looking brake assist

function automatically applies limited

If there is no vehicle ahead or the

braking to reduce the impact speed of

vehicle ahead is out of range, two

the collision.

9 Warning

dashes will be displayed: -.- s.

Forward looking brake assist

This system is not intended to

Active Emergency Braking

replace the driver responsibility of

In addition to brake preparation

Active emergency braking can help to

driving the vehicle and looking

system and emergency automatic

reduce the damage from crashes with

ahead. Its function is limited to

braking, the forward looking brake

vehicles and obstacles directly

supplemental use only. The driver

assist function makes the brake assist

ahead, when a collision can no longer

shall continue to apply the brake

more sensitive. In this way,

be avoided either by manual braking

pedal as the driving situation

depressing the brake pedal slightly

or by steering. Before the active

dictates.

results immediately in a strong

emergency braking applies, the driver

braking. This function helps the driver

is warned by the forward collision

brake quicker and stronger before the

alert 3 195.

imminent collision.

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200

Driving and operating

film, dust, ice or snow. In case of

9 Warning

sensor blockage, clean the sensor

cover.

Active emergency braking is not

In some seldom cases the active

designed to apply strong

emergency braking system may

autonomous braking or to avoid

provide a short automatic braking in

automatically a collision. It is

situations that seem to be

designed to reduce the vehicle

unnecessary, for instance due to

speed before collision. It may not

traffic signs in a curve or due to

react on stopped vehicles,

vehicles in another lane. This is

pedestrians or animals. After a

acceptable operation, the vehicle

sudden lane change, the system

does not need service. Firmly apply

needs a certain time to detect the

the accelerator pedal to override the

next preceding vehicle.

If the system does not work as it

automatic braking.

should do, vehicle messages are

The complete attention of the

displayed in the Driver Information

driver is always required while

Settings

Centre.

driving. The driver shall always be

ready to take action and apply the

Settings can be changed in the Auto

Vehicle messages 3 126.

brakes and steer to avoid

collision preparation menu in the

collisions. The system is designed

vehicle personalisation, 3 132.

to work with all occupants wearing

Fault

their seat belts.

In the event of a system service

System limitations

requirement, a message is displayed

The active emergency braking has

in the Driver Information Centre.

limited or no function during rain,

snow or heavy dirt, as the radar

sensor can be covered by a water

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Driving and operating

201

The system has four ultrasonic

Deactivation

Parking assist

parking sensors in the rear bumper.

Rear parking assist

Activation

When reverse gear is engaged, the

9 Warning

system is ready to operate

automatically.

The driver bears full responsibility

for the parking manoeuvre.

An illuminated LED in the parking

assist button

indicates that the

Always check the surrounding

system is ready to operate.

area while reversing and using the

rear parking assist system.

Indication

The system warns the driver with

The rear parking assist makes

acoustic signals against potentially

parking easier by measuring the

hazardous obstacles behind the

The system automatically switches

distance between the vehicle and

vehicle. The interval between the

off when reverse gear is disengaged.

rear obstacles. It informs and warns

sounds becomes shorter as the

the driver by giving acoustic signals.

To switch on the system again,

vehicle gets closer to that obstacle.

engage reverse gear.

When the distance is less than

Manual deactivation is also possible

approx. 30 cm, the sound is

by pressing

continuous.

When the system is deactivated, the

Additionally, the distance to obstacles

LED in the button extinguishes.

may be shown in the Driver

Information Centre.

Additionally, Park Assist Off pops-up

in the Driver Information Centre when

the system is deactivated manually.

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202

Driving and operating

Fault

The system has four ultrasonic

description) the system is equipped

In the event of a fault in the system or

parking sensors each in the rear and

with

D. Both systems will be

if the system does not work due to

front bumper.

operated by

temporary conditions, e.g. ice

It uses two different acoustic warning

Short press of

deactivates

covered sensors, control indicator

signals for the front and rear

or activates the front parking assist.

illuminates or a message is

monitoring areas, each with a

Long press of

(approx.

displayed in the Driver Information

different tone frequency. The signal

one second) activates or deactivates

Centre.

for front obstacles sounds via the

the advanced parking assist.

Vehicle messages 3 126.

front speakers, for rear obstacles it

sounds from the rear speakers.

Button logic to operate the systems is

Control indicator

3 117.

as follows:

Parking assist button and operation

Front-rear parking assist

●

Front-rear parking assist is

logic

active: short press deactivates

front-rear parking assist.

9 Warning

●

Front-rear parking assist is

The driver bears full responsibility

active: long press activates

for the parking manoeuvre.

advanced parking assist if a

forward gear is engaged.

Always check the surrounding

area when driving backwards or

●

Advanced parking assist is

forwards while using parking

active: short press activates

assist system.

front-rear parking assist.

●

Advanced parking assist is

The front-rear parking assist

active: long press deactivates

measures the distance between the

advanced parking assist.

vehicle and obstacles in front and

●

Advanced parking assist and

behind the vehicle. The system gives

Front-rear parking assist is equipped

front-rear parking assist are

acoustic signals and display

with

r. If the vehicle is additionally

active: short press deactivates

messages.

equipped with advanced parking

both systems.

assist (see the following separate

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Driving and operating

203

Activation

obstacle. When the distance is less

The distance indication in the Driver

When reverse gear is engaged, the

than approx. 30 cm, the sound is

Information Centre can be inhibited

front and rear parking assist is ready

continuous.

by vehicle messages with a higher

to operate.

priority. After approving the message

Additionally, the distance to obstacles

by pressing SET/CLR on the turn

The front parking assist is also

may be shown in the Driver

signal lever, distance indication

activated automatically at a speed up

Information Centre 3 120.

appears again.

to 7 mph.

An illuminated LED in the parking

Deactivation

assist button

indicates that

The rear parking assist automatically

the system is ready to operate.

switches off when reverse gear is

If the vehicle exceeds a speed of

disengaged.

7 mph, the front parking assist is

The front parking assist is deactivated

deactivated. The front parking assist

automatically at a speed above

is always reactivated when vehicle

7 mph.

speed drops below 7 mph.

Indication

The system warns the driver with

acoustic signals against potentially

The distance to a front and rear

hazardous obstacles behind and in

obstacle is indicated by changing

front of the vehicle. Depending on

distance lines around the vehicle.

which side of the vehicle is closer to

an obstacle, you will hear acoustic

Rear obstacles are indicated

warning signals on the respective

acoustically and visually at the same

side of the vehicle. The interval

time.

between the sounds becomes shorter

Front obstacles are indicated visually

as the vehicle gets closer to that

first. At distances less than 80 cm an

acoustic signal also sounds.

Manual deactivation is possible by

pressing

briefly.

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204

Driving and operating

When the system is deactivated, the

Advanced parking assist

signals. The driver must control

LED in the button extinguishes.

acceleration, braking, steering and

gearshifting.

Additionally, Park Assist Off pops-up

9 Warning

in the Driver Information Centre when

The system uses the sensors of the

the system is deactivated manually.

The driver bears full responsibility

front-rear parking assist in

for accepting the parking slot

combination with two additional

After a manual deactivation, the front

suggested by the system and the

sensors on both sides of the front and

parking assist is activated again if

parking manoeuvre.

rear bumper.

is pressed or if reverse

gear is engaged.

Always check the surrounding

Button

and operation logic

area in all directions when using

Advanced parking assist and front-

Fault

advanced parking assist.

rear parking assist (see previous

In the event of a fault in the system or

description) are both operated by

if the system does not work due to

pressing

temporary conditions, e.g. ice

Short press of

deactivates or

covered sensors, control indicator

activates the front parking assist.

illuminates or a message is

displayed in the Driver Information

Long press of

(approx.

Centre.

one second) activates or deactivates

the advanced parking assist.

Vehicle messages 3 126.

Button logic to operate the systems is

Control indicator

3 117.

as follows:

● Front-rear parking assist is

active: short press deactivates

front-rear parking assist.

The advanced parking assist system

● Front-rear parking assist is

manoeuvres the driver into a parking

active: long press activates

slot by giving instructions in the Driver

advanced parking assist if a

Information Centre and via acoustic

forward gear is engaged.

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Driving and operating

205

● Advanced parking assist is

The system can only be activated and

If the driver does not stop the vehicle

active: short press activates

can only search for a parking slot at a

within ten metres after a parking slot

front-rear parking assist.

speed up to 18 mph.

is proposed, the system starts to

search for another suitable parking

● Advanced parking assist is

The maximum allowed parallel

slot.

active: long press deactivates

distance between the vehicle and a

advanced parking assist.

row of parked cars is 1.8 metres.

● Advanced parking assist and

Functionality

front-rear parking assist are

active: short press deactivates

both systems.

Activation

The parking slot suggestion of the

system is accepted when the vehicle

is stopped by the driver within ten

When the vehicle passes a row of

metres after the "Stop" message is

cars and the system is activated, the

given. The system calculates the

advanced parking assist system

optimal route into the parking slot.

begins searching for a suitable

Then it manoeuvres the driver into the

parking slot. When a suitable slot is

slot by giving detailed instructions.

When searching for a parking slot, the

system must be activated by pressing

detected, visual feedback in the

for approx. one second.

Driver Information Centre and an

acoustic signal are given.

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206

Driving and operating

As soon as turn indicator is switched

off, the system searches for parking

slots on the passenger side again.

Display priorities

After activating the advanced parking

assist, a message appears in the

Driver Information Centre. Advanced

parking assist indication in the Driver

Information Centre can be inhibited

by vehicle messages with a higher

priority. After approving the message

by pressing SET/CLR on the turn

The instructions in the display show:

A successful parking manoeuvre is

signal lever, advanced parking assist

indicated by the 'End position'

● A hint when driving faster than

instructions appear again and the

symbol.

18 mph.

parking manoeuvre can be continued.

Always pay attention to the sound of

● The demand to stop the vehicle,

the front-rear parking assist.

Deactivation

when a parking slot is detected.

Continuous sound means that the

● The direction of driving during the

The system is deactivated by:

distance to an obstacle is less than

parking manoeuvre.

● short press of

if advanced

approx. 30 cm.

● The steering wheel position

parking assist and front-rear

during parking.

Changing the parking side

parking assist are activated

The system is configured to detect

● long press of

if advanced

● For some of the instructions a

parking slots by default on the

parking assist is activated

progress bar is shown.

passenger side. To detect parking

● successfully ending parking

slots on the driver side, switch on turn

manoeuvre

indicator to the driver side for the

● driving faster than 18 mph

duration of searching.

● switching off the ignition

Vauxhall Astra (2016 year). Manual - part 12