Volvo XC40 2019 Owner's Manual page 353

Limitations of Cross Traffic
104
Alert*
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.
CTA has a certain limitation – the CTA sensors
cannot "see" through other parked vehicles or
obstructions, for example.
Here are some examples of situations where
CTA's "field of vision" may be already limited
and approaching vehicles cannot therefore be
detected until they are very close:
103 Cross traffic alert when the car is reversing.
104 Cross traffic alert when the car is reversing.
The car is parked deep inside a parking slot.
In an angled parking slot CTA may be completely
"blind" on one side.
Blind CTA sector.
Sector in which CTA can detect/"see".
DRIVER SUPPORT
However, as your car slowly reverses, the
angle it makes with the obstructing vehicle/
object changes and the blind sector rapidly
decreases.
Examples of further limitations
The auto-brake subfunction only detects
•
moving vehicles and therefore cannot
"see" and brake for stationary obstacles, a
cyclist or a pedestrian, for example.
Dirt, ice and snow covering the sensors
•
may reduce the functions and deactivate
alerts.
CTA is automatically deactivated if a
•
trailer, bicycle rack or similar is connected
to the car's electrical system.
For good performance of CTA, there
•
should be no bicycle rack, luggage carrier
or similar mounted on the car's towbar.
NOTE
This function uses the car's radar units,
which have certain general limitations.
Related information
Cross Traffic Alert* (p. 349)
•
Limitations for camera and radar unit
•
(p. 387)
* Option/accessory.
351