DRIVER SUPPORT -> Driver Alert Control and Cross Traffic Alert for Your Volvo XC40 SUV Second Generation (2022-2026)

DRIVER SUPPORT  
Limitations of BLIS  
The BLIS100 function may have limitations in  
certain situations.  
WARNING  
BLIS does not work on sharp bends.  
•
•
BLIS does not work when the car is  
reversing.  
NOTE  
This function uses the car's radar units,  
which have certain general limitations.  
Related information  
BLIS* (p. 350)  
•
Limitations for camera and radar unit  
(p. 395)  
•
Keep the surface indicated clean – on both the left  
and right-hand sides of the car101  
.
Examples of limitations:  
Dirt, ice and snow covering the sensors  
may reduce the functions and deactivate  
alerts.  
•
•
•
The BLIS function is automatically deacti-  
vated if a trailer, bicycle rack or similar is  
connected to the car's electrical system.  
For good performance of BLIS, there  
should be no bicycle rack, luggage carrier  
or similar mounted on the car's towbar.  
100  
101  
Blind Spot Information  
NOTE: The illustration is schematic - details may vary depending on car model.  
352  
* Option/accessory.  
DRIVER SUPPORT  
Messages for BLIS  
A number of messages regarding BLIS102 can  
be shown in the driver display. Here are some  
examples.  
Message  
Specification  
The system does not function as it should. A workshop should be contactedA.  
Blind spot sensor  
Service required  
BLIS and CTAB have been deactivated as a trailer has been connected to the car's electrical system.  
Blind spot system off  
Trailer attached  
A
An authorised Volvo workshop is recommended.  
Cross Traffic Alert*  
B
A text message can be cleared by briefly  
pressing the button, located in the centre  
of the steering wheel's right-hand keypad.  
If a message persists, contact a workshopA.  
Related information  
BLIS* (p. 350)  
•
Cross Traffic Alert* (p. 356)  
•
102  
Blind Spot Information  
* Option/accessory. 353  
DRIVER SUPPORT  
Driver Alert Control  
WARNING  
The Driver Alert Control (DAC) function is  
intended to help make the driver aware that  
he or she is starting to drive less consistently,  
e.g. if the driver becomes distracted or starts  
to fall asleep.  
Driver Alert Control should not be used to  
extend a period of driving. The driver  
should instead plan for breaks at regular  
intervals and make sure they are well  
rested.  
The objective for the function is to detect  
slowly deteriorating driving ability and it is pri-  
marily intended for major roads. The function  
is not intended for city traffic.  
WARNING  
An alarm from Driver Alert Control should  
be taken very seriously, as a sleepy driver is  
often not aware of his/her own condition.  
The function is activated when speed exceeds  
65 km/h (40 mph) and remains active as long  
as the speed is over 60 km/h (37 mph).  
The car is being driven erratically in the lane.  
If the alarm sounds or you feel fatigued:  
Stop the car safely as soon as possible  
and rest.  
•
If driving behaviour becomes  
noticeably inconsistent, the  
driver is alerted by this sym-  
bol in the driver display, com-  
bined with an acoustic signal  
and the text message Time  
to take a break.  
Studies have shown that it is just as dan-  
gerous to drive while tired as it is to drive  
under the influence of alcohol or other  
stimulants.  
If the car is equipped with Sensus Navigation*  
and has the function Rest Stop Guidance  
activated, suggestions for an appropriate  
place for a break are also displayed.  
The warning is repeated after a time if driving  
behaviour has not improved.  
Driver Alert Control reads the position of the car in  
the lane.  
A camera detects the edge markings painted  
on the carriageway and compares the align-  
ment of the road with the driver’s steering  
wheel movements.  
354  
* Option/accessory.  
DRIVER SUPPORT  
Activating or deactivating Driver  
Alert Control  
The Driver Alert Control (DAC) function can  
Select rest stop guidance in the  
event of a warning from Driver  
Alert Control  
In cars equipped with Sensus Navigation*,  
the driver can activate a guide that can auto-  
matically suggest an appropriate rest area  
when Driver Alert Control (DAC) issues a  
warning.  
WARNING  
The function is supplementary driver  
support intended to facilitate driving  
and make it safer – it cannot handle all  
situations in all traffic, weather and  
road conditions.  
•
•
be activated or deactivated.  
1.  
Tap on Settings in the centre display's  
top view.  
2. Select My Car IntelliSafe Driver  
Alert.  
The driver is advised to read all sec-  
tions in the Owner's Manual that relate  
to this function to learn about factors  
such as its limitations and what the  
driver should be aware of before using  
the system.  
It is possible to select whether the Rest Stop  
Guidance function should be activated or  
deactivated.  
3.  
Select or deselect Alertness Warning to  
activate or deactivate the function.  
1.  
Tap on Settings in the centre display's  
Related information  
top view.  
Driver Alert Control (p. 354)  
•
Driver support functions are not a sub-  
stitute for the driver's attention and  
judgement. The driver is always  
responsible for ensuring the car is  
driven in a safe manner, at the appro-  
priate speed, with an appropriate dis-  
tance to other vehicles, and in accord-  
ance with current traffic rules and reg-  
ulations.  
•
2. Select My Car IntelliSafe Driver  
Alert.  
Limitations of Driver Alert Control  
(p. 356)  
•
3.  
Select or deselect Rest Stop Guidance  
to activate or deactivate the function.  
Related information  
Driver Alert Control (p. 354)  
•
Limitations of Driver Alert Control  
(p. 356)  
•
Related information  
Driving support systems (p. 270)  
•
Activating or deactivating Driver Alert  
Control (p. 355)  
•
Select rest stop guidance in the event of a  
warning from Driver Alert Control (p. 355)  
•
•
Limitations of Driver Alert Control  
(p. 356)  
* Option/accessory. 355  
DRIVER SUPPORT  
Cross Traffic Alert*103  
If the function senses that something is  
approaching from the side, this is indicated  
with:  
Limitations of Driver Alert Control  
The Driver Alert Control (DAC) function may  
have limitations in certain situations.  
In some cases the system may issue a warn-  
ing despite driving ability not deteriorating, for  
example:  
Cross Traffic Alert (CTA) is a driver support  
that supplements BLIS104 and is designed to  
help the driver detect traffic crossing behind  
the car when it is reversing.  
an acoustic signal - the sound is heard in  
the left-hand or right-hand speaker  
according to the direction from which the  
object approaches.  
•
The auto-brake subfunction can help the  
driver to stop the car in the event of a risk of  
collision with an unobserved vehicle.  
in strong side winds  
•
•
an illuminated icon in the Park Assist  
System graphic on the screen.  
•
•
on rutted road surfaces.  
an icon on the Park assist camera top  
view.  
WARNING  
In some cases, driving behaviour is not  
affected despite driver fatigue – e.g. when  
using the Pilot Assist* function – resulting  
in the driver not getting a warning from  
DAC.  
It is therefore important to always stop and  
take a break at the slightest feeling of fati-  
gue, regardless of whether the function has  
given a warning.  
Examples of areas where Cross Traffic Alert can  
assist the driver to detect obstacles during reversing.  
NOTE  
This function uses the car's camera and  
radar units, which have certain general lim-  
itations.  
The function is primarily designed to detect  
vehicles. In favourable conditions it may also  
be able to detect smaller objects, such as  
cyclists and pedestrians.  
Illuminated icon for Cross Traffic Alert in the Park  
Assist System graphic on the screen.  
If the driver does not observe the warning  
from the function and a collision is unavoida-  
ble, the auto-brake function engages in order  
to stop the car, after which the driver display  
Related information  
The function is only active if the car rolls back-  
wards or if reverse gear has been selected.  
Driver Alert Control (p. 354)  
•
Limitations for camera and radar unit  
(p. 395)  
•
103  
Cross traffic alert when the car is reversing.  
356  
* Option/accessory.  
DRIVER SUPPORT  
shows an explanatory text message on why  
the car was braked.  
Limitations of Cross Traffic Alert* (p. 358)  
Messages for Cross Traffic Alert* (p. 360)  
BLIS* (p. 350)  
•
•
•
•
Activating or deactivating Cross  
Traffic Alert*105  
The driver can choose to switch off the Cross  
Traffic Alert (CTA) function.  
Activate or deactivate the  
function using this button in  
the centre display's function  
view.  
WARNING  
Park Assist* (p. 361)  
The function is supplementary driver  
support intended to facilitate driving  
and make it safer – it cannot handle all  
situations in all traffic, weather and  
road conditions.  
•
•
The driver is advised to read all sec-  
tions in the Owner's Manual that relate  
to this function to learn about factors  
such as its limitations and what the  
driver should be aware of before using  
the system.  
GREEN button indication – the function is  
activated.  
•
•
GREY button indication – the function is  
deactivated.  
The function is activated automatically each  
time the engine is started.  
Driver support functions are not a sub-  
stitute for the driver's attention and  
judgement. The driver is always  
responsible for ensuring the car is  
driven in a safe manner, at the appro-  
priate speed, with an appropriate dis-  
tance to other vehicles, and in accord-  
ance with current traffic rules and reg-  
ulations.  
•
Related information  
Cross Traffic Alert* (p. 356)  
•
•
•
Limitations of Cross Traffic Alert* (p. 358)  
Messages for Cross Traffic Alert* (p. 360)  
Related information  
Driving support systems (p. 270)  
•
Activating or deactivating Cross Traffic  
•
Alert* (p. 357)  
104  
Blind Spot Information  
* Option/accessory. 357  
DRIVER SUPPORT  
Limitations of Cross Traffic  
Alert*106  
The Cross Traffic Alert (CTA) function with  
auto-brake may have limited functionality in  
certain situations. Brake intervention is active  
at speeds below 15 km/h.  
WARNING  
The auto-brake subfunction can only  
detect and brake for other vehicles that are  
moving – not for stationary obstacles, a  
cyclist or a pedestrian, for example.  
The car is parked deep inside a parking slot.  
In an angled parking slot Cross Traffic Alert may be  
completely “blind” on one side.  
The function has a certain limitation – the sen-  
sors cannot "see" through other parked vehi-  
cles or obstructions, for example.  
Blind sector.  
Sector in which the function can  
detect/"see".  
Here are some examples of situations where  
the function's "field of vision" may be already  
limited and approaching vehicles cannot  
therefore be detected until they are very close:  
However, as your car slowly reverses, the  
angle it makes with the obstructing vehicle/  
object changes and the blind sector rapidly  
decreases.  
105  
Cross traffic alert when the car is reversing.  
Cross traffic alert when the car is reversing.  
106  
358  
* Option/accessory.  

Related Topics

DRIVER SUPPORT

Driving support systems and ESC
Connected Safety
Road Sign Information
Speed limiter functions
Cruise control and Adaptive cruise control
Pilot Assist
Overtaking and Lane Assistance
City Safety
Steering assistance at risk of collision
Rear Collision Warning and BLIS
Park Assist and Park assist camera
Park Assist Pilot
Radar unit and Camera unit

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