Volvo XC40 (2021 year). Manual in english - page 21

Driver support systems (p. 254)

•

Adaptive Cruise Control

•

•

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DRIVER SUPPORT

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362

Camera

The camera is used by several driver support
systems to e.g. detect lane marker lines or
road signs.

Location of the camera

The camera is used by the following functions:

•

Adaptive Cruise Control

•

Pilot Assist

•

Lane Keeping Aid

•

Steering assistance at risk of collision

•

City Safety

•

Driver Alert Control

•

Road Sign Information

•

Active high beams

•

Park Assist

Related information

•

•

Camera/radar sensor limitations (p. 362)

•

Camera/radar sensor limitations

The camera and radar sensor used by several
of the driver support functions has certain
limitations, which also affect the functions
using the camera and radar sensor. The driver
should be aware of the following limitations:

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363

Common camera and radar limitations

Obstructed camera

The area marked in the illustration must be cleaned

regularly and kept free of decals, objects, solar film,

etc.

The camera is located on the upper interior
section of the windshield along with the radar
sensor.

Do not place, affix or mount anything on the
inside or outside of the windshield, or in front
of or around the camera and radar sensor –
this could disrupt camera and radar-based
functions. It could cause functions to be
reduced, deactivated completely or to produce
an incorrect function response.

High temperatures

If the temperature in the passenger compart-
ment is very high, the camera/radar sensor

will switch off temporarily for
approx. 15 minutes after the engine is started
to protect its electronic components. When
the temperature has cooled sufficiently, the
camera/radar sensor will automatically restart.

Damaged windshield

Failure to take action could result in
reduced performance for the driver support
systems that use the camera and radar
unit. It could cause functions to be
reduced, deactivated completely or to pro-
duce an incorrect function response.

To avoid the risk of malfunction of the driver
support systems that use the radar sensor, the
following also apply:

•

If there are cracks, scratches or stone
chips on the windshield in front of any of
the camera and radar sensor "windows"
and this covers an area of
about 0.5 × 3.0 mm (0.02 × 0.12 in.) or
more, contact a workshop to have the
windshield replaced

119

•

Volvo advises

against

repairing cracks,

scratches or stone chips in the area in
front of the camera and radar sensor – the

entire windshield should instead be
replaced.

•

Before replacing the windshield, contact a
workshop

119

to verify that the right wind-

shield has been ordered and installed.

•

The same type of windshield wipers or
wipers approved by Volvo should be used
for replacement.

•

If the windshield is replaced, the camera
and radar sensor must be recalibrated by a
workshop

119

to help ensure proper func-

tioning of all of the vehicle's camera and
radar-based systems.

Additional radar limitations

Vehicle speed

The radar sensor's ability to detect a vehicle
ahead is significantly reduced if the speed of
the vehicle ahead differs greatly from your
vehicle's speed.

119

An authorized Volvo workshop is recommended.

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DRIVER SUPPORT

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364

Limited field of vision

The radar sensor has a limited field of vision. In
some situations, it may detect a vehicle later
than expected or not at all.

The radar sensor's field of vision

The radar sensor's detection of vehicles
very close to your vehicle may be delayed
in certain situations, e.g. if a vehicle pulls

in between your vehicle and the vehicle
directly ahead.
Small vehicles, such as motorcycles, or
vehicles that are not driving in the center
of the lane may remain undetected.
In curves, the radar may detect the a dif-
ferent vehicle than intended or lose sight
of a target vehicle.

Low trailers

Low trailer in the radar shadow

Low trailers may also be difficult or even
impossible for the radar to detect. The driver
should be extra alert when driving behind vehi-
cles towing low trailers when Adaptive Cruise
Control

or Pilot Assist

is activated.

Additional camera limitations

Reduced visibility

Cameras have the same limitations as the
human eye. In other words, their “vision" is
impaired by adverse weather conditions such
as heavy snowfall/rain, dense fog, swirling

dust/snow, etc. These conditions may reduce
the function of systems that depend on the
camera or cause these systems to temporarily
stop functioning.

Strong sunlight, reflections from the road sur-
face, ice or snow covering the road, a dirty
road surface, or unclear lane marker lines may
drastically reduce the camera’s ability to
detect the side of a lane, a pedestrian, a
cyclist, a large animal or another vehicle.

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365

Additional Park Assist Camera

limitations

Blind sectors

There are "blind" sectors between the cameras' fields

of vision.

With the Park Assist Camera's 360° view

selected, objects/obstacles may not be
detected if they are located in the "joints"
where the edges of the individual camera
views meet.

WARNING

Even if it seems as though only a fairly

small section of the screen image is

obstructed, this may mean that a relatively

large sector is hidden and obstacles there

may not be detected until they are very

near the vehicle.

Lighting conditions

The camera image is automatically adjusted
according to the current lighting conditions.
This means that the brightness and quality of
the image may vary slightly. Poor lighting con-
ditions may result in reduced image quality.

A bike carrier and other accessories moun-
ted on the rear of the vehicle can obscure
the camera's view.

Related information

•

Camera (p. 362)

•

Volvo Cars support site (p. 21)

•

Park Assist Camera

(p. 340)

•

Recommended camera and radar

sensor maintenance

In order for the camera and radar units to
function properly, they must be kept free of
dirt, ice, snow, etc. and should be washed
regularly with water and car washing deter-
gent.

Dirt, ice and snow covering the sensors
could cause false warnings, reduced func-
tion, or no function.

Location of the Park Assist sensors

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366

Location of rear radar sensors. Keep the marked area

clean (on both the left and right sides of the vehicle).

•

For best possible performance, it is impor-
tant to keep the areas in front of the sen-
sors clean.

•

Do not attach any objects, tape or decals
to the surface of the sensors.

•

Clean the camera lenses regularly using
lukewarm water and car washing deter-
gent. Wash gently to avoid scratching the
lens.

CAUTION

Only a workshop may perform mainte-
nance on driver support components – an
authorized Volvo workshop is recom-
mended.

Related information

•

Camera (p. 362)

•

Camera/radar sensor limitations (p. 362)

•

•

Park Assist Camera

(p. 340)

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367

Camera and radar unit symbols

and messages

Here are examples of some of the messages
and symbols related to the camera and radar
units that may be displayed in the instrument
panel.

Sensor blocked

If this symbol and the message

Windscreen sensor

Sensor

blocked, see Owner's manual

displayed in the instrument panel, it

means that the camera and radar unit are
unable to detect other vehicles, cyclists,
pedestrians and large animals in front of the
vehicle and that the vehicle's camera and
radar-based functions may be obstructed.

The following table shows some of the situa-
tions that can cause the message to be dis-
played, and suggested actions:

Cause

Action

The area of the windshield in front of the camera/radar sensor is
dirty or covered by ice or snow.

Clean the windshield in front of the camera/radar sensor and remove dirt, ice
and snow.

Thick fog, heavy rain or snow is blocking the radar signals or the
camera's range of visibility.

No action. Heavy precipitation may sometimes prevent the camera/radar sensor
from functioning.

Water or snow is spraying/swirling up and blocking the radar
signals or the camera's range of visibility.

No action. Very wet or snow-covered roads may sometimes prevent the cam-
era/radar sensor from functioning.

There is dirt between the inside of the windshield and the cam-
era/radar sensor.

Consult a workshop to have the area of the windshield on the inside of the cam-
era's casing cleaned. An authorized Volvo workshop is recommended.

Bright sunlight.

No action. The camera/radar sensor will reset automatically when lighting con-
ditions improve.

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368

Defective camera

If a camera sector is dark and
contains this symbol, this
indicates that the camera is
not functioning properly.

The vehicle's left-side camera is malfunctioning.

A dark camera sector may also be displayed in
the following situations, but

without

the

defective camera symbol:

•

a door is open

•

the tailgate is open

•

a rearview mirror is folded in

Rear Park Assist Camera

WARNING

Be extra cautious when

reversing if this symbol is

shown when a trailer, bike

carrier or similar is

attached and electrically

connected to the vehicle.
The symbol indicates that

the rear parking assist sensors are

deacti-

vated

and will not warn of any obstacles.

Related information

•

Camera (p. 362)

•

Camera/radar sensor limitations (p. 362)

•

•

Volvo Cars support site (p. 21)

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370

Starting the vehicle

The vehicle can be started using the start
knob next to the steering wheel when the
remote key is in the passenger compartment.

Location of the start button.

WARNING

Before starting:

•

Buckle your seat belt.

•

Adjust the seat, steering wheel and
mirrors.

•

Make sure you can fully depress the
brake pedal.

The remote key is not physically used to start
the ignition because the vehicle is equipped
with the keyless Passive Start system.

To start the vehicle:

1. The remote key must be inside the vehicle.

For vehicles with Passive Start, the key
must be in the front section of the passen-
ger compartment. With the optional key-
less locking/unlocking function

, the key

can be anywhere in the vehicle.

2. Press and hold down the brake pedal

far as possible.

3. Press the start button.

WARNING

•

Never use more than one inlay mat at a
time on the driver's floor. If any other
type of floor mat is used, remove the
original mat from the driver's seat floor
before driving. All types of mats must
be securely anchored in the attach-
ment points in the floor. Make sure the
floor mat does not impede the move-
ment of the brake pedal or accelerator
pedal in any way, as this could be a
serious safety hazard.

•

Volvo's floor mats are specially manu-
factured for your vehicle. They must be
properly secured in the attachment
points in the floor to help ensure they
cannot slide and become trapped
under the pedals.

The starter motor will crank until the engine
starts or until overheating protection is trig-
gered.

Error messages

If the

Vehicle key not found

message is

shown in the instrument panel at start, place
the remote key at the backup reader and then
make a new start attempt.

If the vehicle is moving, it is only necessary to press the button to start the engine.

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371

Location of the backup reader.

When the remote key is placed in the
backup reader, make sure that no other
vehicle keys, metal objects or electronic
devices (e.g. cellular phones, tablets, lap-
tops or chargers) are in the backup reader.
Multiple vehicle keys close to each other in
the backup reader can disrupt their func-
tionality.

CAUTION

If the engine has not responded after 3
attempts – wait for 3 minutes before star-
ting a new attempt. Starting capability
increases if the starter battery is given time
to recover.

WARNING

Never

remove the remote control key from

the vehicle while driving or the vehicle is

being towed.

WARNING

•

Always remove the remote key from
the passenger compartment when you
leave the vehicle and make sure the
ignition is in mode

•

Always put the gear selector in

and

apply the parking brake before leaving
the vehicle. Never leave the vehicle
unsupervised while the engine is run-
ning.

•

Always open the garage door fully and
make sure that ventilation is very good
before starting the engine in a garage.
The exhaust fumes produced by the
vehicle contain carbon monoxide,
which is invisible and odorless but very
toxic.

CAUTION

•

When starting in cold weather, the
automatic transmission may shift up at
slightly higher engine speeds than nor-
mal until the automatic transmission
fluid reaches normal operating tem-
perature.

•

Do not race a cold engine immediately
after starting. This could prevent fluids
from properly lubricating vital compo-
nents in the engine before it has
reached the proper operating tempera-
ture.

•

The engine should be idling when the
gear selector is moved. Never acceler-
ate until the gear is fully engaged.
Accelerating rapidly before a gear is
properly engaged could lead to harder
wear of components.

•

To help prevent the transmission oil
from overheating, select

when

idling at a standstill for prolonged peri-
ods of time.

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372

Switching off the vehicle (p. 372)

With a cold start, idling speed may be con-
siderably higher than normal for certain
engine types. This is done to get the emis-
sions system up to normal operating tem-
perature as quickly as possible, which min-
imizes exhaust emissions and protects the
environment.

Related information

•

•

Ignition modes (p. 372)

•

•

Selecting ignition mode (p. 374)

•

Switching off the vehicle

The vehicle is turned off using the start but-
ton next to the steering wheel.

Location of the start button.

To switch off the vehicle:

–

Press the start button – the vehicle is
turned off.

If the vehicle rolls:

–

Press and hold the start button until the
vehicle is turned off.

Related information

•

Starting the vehicle (p. 370)

•

Ignition modes (p. 372)

•

•

Selecting ignition mode (p. 374)

•

Ignition modes

The vehicle's ignition can be put in various
modes (levels) to make different functions
available.

To enable the use of a limited number of func-
tions when the engine is not running, the igni-
tion can be put in one of three different levels:

and

. These levels are referred to as "igni-

The following table shows which functions are
available in each ignition mode:

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373

Mode Functions

•

The odometer, clock and tem-
perature gauge are illumi-
nated

•

The power

seats can be

adjusted.

•

The power windows can be
used.

•

The center display is activated
and can be used

•

The infotainment system can
be used

In this mode, the functions are
available for a limited time and
then switch off automatically.

Mode Functions

•

The panoramic roof, power
windows, 12-volt electrical
socket in the passenger com-
partment, Bluetooth, naviga-
tion, phone, blower and wind-
shield wipers can be used.

•

The power seats can be
adjusted.

•

The 12-volt electrical socket

the cargo compartment can be
used.

•

The infotainment system starts
up automatically if it was on
when the ignition was
switched off.

Electrical current will be taken
from the battery in this ignition
mode.

Mode Functions

•

The headlights illuminate.

•

Warning/indicator lights illumi-
nate for 5 seconds.

•

A number of other systems are
activated. However, seat and
rear window heating can only
be activated when the engine
is running.

This ignition mode uses a lot of
current from the battery and
should be avoided whenever
possible!

Also activated when the door is opened.

Related information

•

Starting the vehicle (p. 370)

•

•

Selecting ignition mode (p. 374)

•

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Selecting ignition mode

The vehicle's ignition can be put in various
modes (levels) to make different functions
available.

Selecting an ignition mode

Location of the start button.

•

Ignition mode 0

– Unlock the vehicle and

keep the remote key in the passenger
compartment.

Starting the vehicle (p. 370)

To set level

without

engine start –

not

depress the brake pedal (or clutch

pedal for vehicles with manual transmis-
sion) when selecting this ignition mode.

•

Ignition mode I

– Press the start button

and release.

•

Ignition mode II

– Press the button and

hold it in for approx. 5 seconds. Release
the button.

•

Back to ignition mode 0

– To return to

ignition mode

from modes

and

press the start button.

Related information

•

•

Switching off the vehicle (p. 372)

•

Ignition modes (p. 372)

•

•

Auto-hold brakes (p. 381)

Brake functions

The vehicle's brakes are used to reduce
speed or prevent the vehicle from rolling.

In addition to the wheel brakes and parking
brakes, the vehicle is also equipped with a
number of automatic brake assist functions.
These systems provide assistance by e.g. the
driver not needing to depress the brake pedal
at a traffic light, when starting up a hill or
when driving down a hill.

Depending on how the vehicle is equipped,
the following brake assist functions may be
included:

•

Auto-hold brake function at a standstill
(Auto Hold)

•

Hill Start Assist (Hill Start Assist)

•

Braking assist after a collision

•

City Safety

•

Hill Descent Control (Hill Descent
Control)

Related information

•

Brakes (p. 375)

•

Parking brake (p. 377)

•

•

Braking assist after a collision (p. 383)

•

Hill Start Assist (p. 382)

•

•

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Brakes

The brake pedal is used to apply the vehicle's
regular brakes, which are part of the brake
system.

The vehicle is equipped with two brake cir-
cuits. If one brake circuit is damaged, the
brake pedal may go down further when
depressed. More pressure will then be
required from the driver for normal braking
effect.

The driver's pressure on the brake pedal is
enhanced by a power braking function.

WARNING

Power braking only functions if the engine

is running.

If the brake pedal is used when the engine is
turned off, the pedal will feel stiffer than usual
and greater pressure must be applied to brake
the vehicle.

In very hilly areas or when driving with a heavy
load, engine braking in manual gear should be
used to augment the brakes. Engine braking is
most effective if the same gear is used both
uphill and downhill. Use the Off Road

drive

mode to increase the engine braking effect
when driving on steep downgrades at low
speeds.

Anti-lock brakes

The vehicle is equipped with an Anti-lock
Braking System (ABS

), which helps prevent

the wheels from locking and helps maintain
steering control when braking. Vibrations may
be felt from the brake pedal when ABS is
operating, which is normal.

After the vehicle is started, a brief test of the
ABS system is automatically performed when
the driver releases the brake pedal. An addi-
tional automatic test of the system may be
performed when the vehicle is traveling at a
low speed. During the test, the brake pedal
may feel as though it is pulsating.

Symbols in the instrument panel

Symbol Meaning

Check the brake fluid level. If the
level is low, fill brake fluid and
check to determine the reason
for the loss of brake fluid.

Steady glow for 2 seconds after
the engine is started: Automatic
function check.

Steady glow for more than 2
seconds: Fault in the ABS sys-
tem. The vehicle's regular brake
system is still working, but with-
out the ABS function.

In Canada.

In the US.

Anti-lock Braking System

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STARTING AND DRIVING

376

WARNING

If the warning symbols for both brake fault

and ABS fault are lit simultaneously, there

may be a fault in the brake system.

•

If the brake fluid reservoir level is nor-
mal when this occurs, drive carefully to
the nearest workshop to have the
brake system checked - an authorized
Volvo workshop is recommended.

•

If the brake fluid has fallen below the

MIN

level in the brake fluid reservoir,

the vehicle should not be driven until
the brake fluid has been filled. The rea-
son for the brake fluid loss must be
checked.

Related information

•

Brake Assist System (p. 376)

•

Auto-hold brakes (p. 381)

•

Hill Start Assist (p. 382)

•

Braking on wet roads (p. 376)

•

Braking on salted roads (p. 377)

•

Maintenance of the brake system (p. 377)

•

Brake lights (p. 155)

Brake Assist System

The brake enhancing system, (BAS

), helps

increase braking force and can thereby
reduce braking distance.

The system monitors the driver's braking hab-
its and increases braking force when neces-
sary. Braking force can be increased up to the
point at which the ABS intervenes.