Volvo XC90 2018 Owner's Manual page 317

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Pilot Assist
Pilot Assist helps the driver to drive the car
between the lane's side markings using steering
assistance as well as to maintain an even speed,
combined with a preselected time interval to the
vehicle ahead.
How Pilot Assist works
The Pilot Assist function is primarily intended for
use on motorways and similar major roads where
it can contribute to more comfortable driving and
a more relaxed driving experience.
The camera and radar unit measures the distance to the
vehicle ahead and detects side markings.
Camera and radar unit
Distance readers
Readers, side markings
This function can be either standard or optional, depending on market.
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The driver selects the desired speed and a time
interval to the vehicle ahead. Pilot Assist scans
the distance to the vehicle ahead and the lane's
side markings on the road surface using the
camera and radar unit. The preset time interval is
maintained with automatic speed adjustment
whilst the steering assistance helps to position
the car in the lane.
Pilot Assist steering assistance takes into
account the speed of the preceding car and the
lane markings. The driver can at any time ignore
the Pilot Assist steering recommendation and
steer in another direction, e.g. to change lane or
avoid an obstruction on the road.
If Pilot Assist cannot interpret the lane unambig-
uously, e.g. if the camera and radar unit does not
see the lane's side markings, Pilot Assist tempo-
rarily deactivates steering assistance, but
resumes it if the lane can be interpreted again -
although the speed and distance control func-
tions remain active.
WARNING
Pilot Assist steering assistance is automati-
cally deactivated and is resumed without prior
warning.
DRIVER SUPPORT
The current status of steering
assistance is indicated by the
colour of the steering wheel's
symbol:
• GREEN steering wheel indi-
cates active steering assis-
tance
• GREY steering wheel (as in illustration) indi-
cates deactivated steering assistance.
WARNING
Pilot Assist must only be used if there are
clear lane lines painted on each side of the
lane. All other use involves increased risk of
contact with surrounding obstacles that can-
not be detected by the function.
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