Volvo XC90: 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.:
- in strong crosswinds
- on grooved road surfaces.
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.
It is therefore very important to always stop and take a break at the slightest
sign of fatigue, regardless of whether the function has issued a warning or not.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain
general limitations.
* Option/accessory.
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...
(Option/accessory.)
The Distance Alert function can help the driver become aware if the time interval
to the vehicle in front is too short. The vehicle must be equipped with a head-up
display* in order to display Distance Alert...
Other information:
(Option/accessory.)
An integrated compass1 in the upper right corner of the rearview
mirror shows the direction the vehicle is traveling.
Rearview mirror with compass.
Eight different compass directions are shown with the abbreviations: N
(north), NE (northeast), E (east), SE (southeast), S
(south), SW (southwest), W (west) and NW (northwest)...
Vehicles with the Start/Stop function are equipped with two batteries – a
more powerful 12 V start battery and a support battery that provides stronger current
during the function's start sequence.
The 12 V support battery is located in a box next to the spring
strut in the engine compartment...