Get Driving and operating -> Ride control systems Guide for Vauxhall Astra 4 Door Seventh Generation (2016-2021)

170

Driving and operating

ABS starts to regulate brake pressure

as soon as a wheel shows a tendency

to lock. The vehicle remains

Fault

Manual parking brake

9 Warning

steerable, even during hard braking.

ABS control is made apparent

through a pulse in the brake pedal

and the noise of the regulation

process.

For optimum braking, keep the brake

pedal fully depressed throughout the

braking process, despite the fact that

the pedal is pulsating. Do not reduce

the pressure on the pedal.

If there is a fault in the ABS, the

wheels may be liable to lock due

to braking that is heavier than

normal. The advantages of ABS

are no longer available. During

hard braking, the vehicle can no

longer be steered and may

swerve.

Have the cause of the fault remedied

by a workshop.

After starting off, the system performs

a self-test which may be audible.

9 Warning

Parking brake

Always apply parking brake firmly

without operating the release

button, and apply as firmly as

possible on a downhill or uphill

slope.

To release the parking brake, pull

the lever up slightly, press the

release button and fully lower the

lever.

9 Warning

Before leaving the vehicle, check

parking brake status. Control

indicator R (manual parking

brake) or m (electrical parking

brake) illuminate constantly when

parking brake is applied.

Control indicator u 3 110.

Adaptive brake light

During full braking, all three brake

lights flash for the duration of ABS

control.

Driving and operating

171

Do not operate electric parking brake

system too often without engine

running as this will discharge the

vehicle battery.

Dynamic braking when vehicle is

moving

When the vehicle is moving and the

switch m is kept pulled, the electric

parking brake system will decelerate

the vehicle, but will not apply

statically.

To reduce the operating forces of

the parking brake, depress the

foot brake at the same time.

Control indicator R 3 109.

Releasing

Switch on ignition. Keep foot brake

pedal depressed and then push

switch m. If control indicator m

extinguishes, electric parking brake is

released.

Electric parking brake

As soon as the switch m is released,

dynamic braking will be stopped.

Automatic applying

If the vehicle is equipped with

automatic transmission and adaptive

cruise control is active, electric

parking brake is applied automatically

when vehicle is stopped by the

system for more than 2 minutes.

Drive away function

Vehicles with manual transmission:

Depressing the clutch pedal and then

slightly releasing the clutch pedal and

slightly depressing the accelerator

pedal releases the electric parking

brake automatically. This is not

possible when switch m is pulled at

the same time.

Parking brake releases automatically

after moving off.

Functionality check

Applying when vehicle is stationary

Pull the switch m. If control indicator

m illuminates, electric parking brake

is applied.

The electric parking brake can always

be activated, even if the ignition is off.

Vehicles with automatic transmission:

Engaging D and then depressing the

accelerator pedal releases the

electric parking brake automatically.

This is not possible when switch m is

pulled at the same time.

When the vehicle is not moving, the

electric parking brake might be

applied automatically. This is done to

check the system.

172

Driving and operating

Fault

Hill start assist

Ride control systems

Failure mode of electric parking brake

is indicated by a control indicator j

and by a vehicle message which is

displayed in the Driver Information

Centre.

The system helps prevent unintended

movement when driving away on

inclines.

Traction Control system

The Traction Control system (TC) is a

component of the Electronic Stability

Control (ESC).

When releasing the brake pedal after

stopping on an incline, brakes remain

on for further two seconds. The

brakes release automatically as soon

as the vehicle begins to accelerate.

Vehicle messages 3 121.

TC improves driving stability when

necessary, regardless of the type of

road surface or tyre grip, by

preventing the drive wheels from

spinning.

As soon as the drive wheels starts to

spin, engine output is reduced and

the wheel spinning the most is braked

individually. This considerably

improves the driving stability of the

vehicle on slippery road surfaces.

Control indicator m flashes: electric

parking brake is not fully applied or

released. When continuously

flashing, release electric parking

brake and retry applying.

Brake assist

If brake pedal is depressed quickly

and forcefully, maximum brake force

is automatically applied.

Operation of brake assist might

become apparent by a pulse in the

brake pedal and a greater resistance

when depressing the brake pedal.

Maintain steady pressure on the

brake pedal as long as full braking is

required. Maximum brake force is

automatically reduced when brake

pedal is released.

TC is operational after each engine

start as soon as the control indicator

b extinguishes.

When TC operates b flashes.

Driving and operating

173

Have the cause of the fault remedied

by a workshop.

9 Warning

Do not let this special safety

feature tempt you into taking risks

when driving.

Adapt speed to the road

conditions.

Electronic Stability Control

Electronic Stability Control (ESC)

improves driving stability when

necessary, regardless of the type of

road surface or tyre grip.

Control indicator k illuminates.

A status message appears in the

Driver Information Centre when TC is

deactivated.

When TC is deactivated, ESC

remains active but with higher control

threshold.

TC is reactivated by pressing b

again. A status message pops up in

the Driver Information Centre when

TC is reactivated.

Control indicator b 3 110.

As soon as the vehicle starts to

swerve (understeer / oversteer),

engine output is reduced and the

wheels are braked individually.

ESC operates in combination with the

Traction Control system (TC). It

prevents the drive wheels from

spinning.

Deactivation

Torque distribution is a special

feature that allocates the torque to the

drive wheels before the ESC

intervenes. When cornering, the

wheels on the inner curve are braked

individually. Additionally, engine

torque will be delivered to the drive

wheel on the outer curve. This

reduces the tendency of

TC is also reactivated the next time

the ignition is switched on.

Fault

If there is a fault in the system the

control indicator b illuminates

continuously and a message appears

in the Driver Information Centre. The

system is not operational.

TC can be switched off when spinning

of drive wheels is required: press b

briefly.

understeering and improves traction

when cornering fast.

174

Driving and operating

Deactivation

●

To deactivate only Traction

control system press button b

briefly: TC is inactive but ESC

remains active, k illuminates. A

status message appears in the

Driver Information Centre when

TC is deactivated.

ESC is operational after each engine

start as soon as the control indicator

b extinguishes.

When ESC operates b flashes.

9 Warning

ESC is reactivated by pressing the

b button again. If the TC system was

previously disabled, both TC and

ESC are reactivated. k and n

extinguishes when TC and ESC are

reactivated.

Do not let this special safety

feature tempt you into taking risks

when driving.

Adapt speed to the road

conditions.

ESC and TC can be deactivated:

●

hold b pressed for a minimum of

five seconds: ESC and TC are

both deactivated. k and n

illuminate and status messages

appear in the Driver Information

Centre.

ESC is also reactivated the next time

the ignition is switched on.

Control indicator b 3 110.

Fault

If there is a fault in the system the

control indicator b illuminates

continuously and a message appears

in the Driver Information Centre. The

system is not operational.

Driving and operating -> Ride control systems for Your Vauxhall Astra 4 Door Seventh Generation (2016-2021)

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