Rear Collision Warning; Rear Collision Warning* Limitations - Volvo XC40 2019 Owner's Manual

Rear Collision Warning*

79
The Rear Collision Warning (RCW) function
can help the driver avoid rear-end collisions
from vehicles approaching from behind.
The function can alert drivers of following vehi-
cles of the risk of a collision by rapidly flashing
the turn signals.
If, at a speed below 30 km/h (20 mph), the
function detects that the vehicle is in danger
of being hit from behind, the seat belt tension-
ers may tension the front seat belts. The
Whiplash Protection System will also be acti-
vated in a collision.
Immediately before a collision from behind,
the function may also activate the brakes in
order to reduce the forward acceleration of the
vehicle during the collision. However, the
brakes will only be applied if your vehicle is
stationary. The brakes will be immediately
released if the accelerator pedal is depressed.
The function is automatically activated each
time the engine is started.
78 Warning of collision from the rear.
79 This function is not available on all markets.
80 Warning of collision from the rear.
78
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.
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.
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.
Related information
Driver support systems (p. 248)
•

Rear Collision Warning* limitations

•
(p. 313)
Whiplash Protection System (p. 46)
•
DRIVER SUPPORT
Rear Collision Warning*
limitations
In some situations, it may be difficult for Rear
Collision Warning (RCW) to warn the driver
of a collision risk.
This may be the case if:
the vehicle approaching from the rear is
•
detected at a late stage
the vehicle approaching from the rear
•
changes lanes at a late stage
a trailer, bicycle holder or similar is con-
•
nected to the vehicle's electrical system -
the function will then be automatically
deactivated.
NOTE
In certain markets RCW does not warn
with the direction indicators due to local
traffic regulations – in such cases, that part
of the function is deactivated.
* Option/accessory.
80
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