2019-2026 Volvo V90 SUV DRIVER SUPPORT -> Driver Alert Control User Manual
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DRIVER SUPPORT -> Driver Alert Control for Your Volvo V90 SUV Second Generation (2019-2026)

DRIVER SUPPORT  
Driver Alert Control  
WARNING  
The Driver Alert Control (DAC) function is  
designed to help alert the driver to erratic  
behavior, e.g. if the driver is distracted or  
showing signs of fatigue.  
Driver Alert Control must not be used to  
extend a period of driving. The driver  
should plan in breaks at regular intervals  
and make sure they are well rested.  
The objective of DAC is to detect slowly dete-  
riorating driving behavior and is primarily  
intended to be used on major roads. The func-  
tion is not intended for use in city traffic.  
WARNING  
An alarm from Driver Alert Control should  
be taken very seriously since a sleepy driver  
is often not aware of their own condition.  
DAC is activated when the vehicle's speed  
exceeds 65 km/h (40 mph) and remains  
active as long as speeds are above 60 km/h  
(37 mph).  
If the alarm sounds or you feel fatigued:  
The vehicle is moving erratically in the lane.  
Stop the vehicle safely as soon as pos-  
sible and rest.  
•
If driving behavior becomes  
considerably erratic, the  
driver will be alerted by this  
symbol in the instrument  
panel, an audible signal and  
the message Time for 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 vehicle is equipped with Sensus  
Navigation* and the Rest Stop Guidance  
function is activated, suggestions will also be  
provided for suitable places to take a break.  
The warning will be repeated after a short time  
if driving behavior does not improve.  
DAC detects the vehicle's position in the traffic lane.  
A camera monitors the traffic lane's marker  
lines and compares the direction of the road  
with the driver's movements of the steering  
wheel.  
344  
* Option/accessory.  
DRIVER SUPPORT  
Activating or deactivating Driver  
Alert Control  
The Driver Alert Control (DAC) function can  
Selecting guidance to a rest area if  
the Driver Alert Control warning  
has been given  
In vehicles equipped with Sensus  
Navigation*, the driver can activate a guide  
that can automatically suggest a suitable rest  
stop if the Driver Alert Control (DAC) warning  
is given.  
WARNING  
The function is supplementary driver  
support intended to facilitate driving  
and help make it safer – it cannot han-  
dle all situations in all traffic, weather  
and road conditions.  
•
•
•
be activated or deactivated.  
1.  
Tap Settings in the center display's Top  
view.  
2. Select My Car IntelliSafe Driver  
Alert Control.  
The driver is advised to read all sec-  
tions in the Owner's Manual about this  
function to learn of its limitations,  
which the driver must be aware of  
before using the function.  
The Rest Stop Guidance function can be  
switched on or off.  
3.  
Select/deselect Alertness Warning to  
activate/deactivate the function.  
1.  
Tap Settings in the center display's Top  
view.  
Related information  
Driver support functions are not a sub-  
stitute for the driver's attention and  
judgment. The driver is always respon-  
sible for ensuring the vehicle is driven  
in a safe manner, at the appropriate  
speed, with an appropriate distance to  
other vehicles, and in accordance with  
current traffic rules and regulations.  
Driver Alert Control (p. 344)  
•
2. Select My Car IntelliSafe Driver  
Alert Control.  
Driver Alert Control limitations (p. 346)  
•
3.  
Select/deselect Rest Stop Guidance to  
activate/deactivate the function.  
Related information  
Driver Alert Control (p. 344)  
•
Driver Alert Control limitations (p. 346)  
•
Related information  
Driver support systems (p. 270)  
•
Activating or deactivating Driver Alert  
Control (p. 345)  
•
Selecting guidance to a rest area if the  
Driver Alert Control warning has been  
given (p. 345)  
•
•
Driver Alert Control limitations (p. 346)  
* Option/accessory. 345  
DRIVER SUPPORT  
Driver Alert Control limitations  
Driver Alert Control (DAC) functionality may  
be reduced in certain situations.  
In certain situations, the system may provide a  
warning even if it has not detected a change in  
driving behavior, e.g.:  
Lane Keeping Aid  
Lane Keeping Aid (LKA88) is designed to  
actively steer the vehicle on freeways, high-  
ways and other major roads to help the driver  
reduce the risk of the vehicle unintentionally  
veering out of the lane.  
Lake Keeping Aid steers the vehicle back into  
the lane and/or alerts the driver using vibra-  
tions in the steering wheel.  
in strong crosswinds  
•
•
on grooved road surfaces.  
Lane Keeping Aid is active at speeds between  
65–200 km/h (40–125 mph) on roads with  
clearly visible traffic lane marker lines.  
WARNING  
In certain cases, driving behavior might not  
be affected despite the driver's fatigue –  
when using the Pilot Assist* function –  
resulting in the driver not getting a warning  
from DAC.  
A camera monitors the road/traffic lane's marker  
lines.  
On narrow roads, the function may be unavail-  
able and go into standby mode. The function  
will become available again when the road  
becomes sufficiently wide.  
It is therefore very important to always  
stop and take a break at the slightest sign  
of fatigue, regardless of whether the func-  
tion has issued a warning or not.  
NOTE  
The function uses the vehicle's camera and  
radar sensor, which has certain general  
limitations.  
Lane Keeping Aid steers the vehicle back into its  
lane.  
Related information  
Driver Alert Control (p. 344)  
•
Camera/radar sensor limitations (p. 311)  
•
88  
Lane Keeping Aid  
346  
* Option/accessory.  

Related Topics

DRIVER SUPPORT
Driver support systems Electronic Stability Control Cruise control Adaptive Cruise Control* Pilot Assist* Camera City Safety? Rear Collision Warning* BLIS* Cross Traffic Alert* Road Sign Information* Lane Keeping Aid Park Assist* Park Assist Camera* Park Assist Pilot*

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