Volvo S 90, Owner'S Manual

Page: 263 / 548

DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction. 261
WARNING
•
Poor weather or winding roads can affect
the radar sensor's capacity to detect vehi-
cles ahead.
•
A vehicle's size (e.g., a motorcycle) can
also affect the radar sensor's capacity to
detect another vehicle. This may result in
the warning light illuminating at a shorter
distance than the one that has been set
or not illuminating at all.
•
High speeds may also result in the warn-
ing light illuminating at a shorter distance
than the one that has been set due to
limitations in the radar sensor's range.
For additional information, see also the article
"Radar sensor limitations."
Related information
•
Radar sensor limitations (p. 299)
•
Distance Alert
*
(p. 259)
Adaptive Cruise Control (ACC)
*
ACC is an optional system designed to assist
the driver by maintaining a set speed or a set
time interval to the vehicle ahead.
ACC helps provide more relaxed driving on long
trips on highways or other major roads in a rela-
tively even flow of traffic.
The camera and radar sensor monitor the distance to
the vehicle ahead (generic illustration - certain details
may vary from model to model)
The driver sets that desired speed and time inter-
val to the vehicle ahead. When the camera and
radar sensor detects a slower moving vehicle
ahead, your vehicle's speed is automatically
adapted. When there are no longer slower mov-
ing vehicles ahead, your vehicle will accelerate to
resume the set speed.
ACC is designed to follow a vehicle ahead in the
same lane and maintain a time interval to that
vehicle set by the driver. If the radar sensor does
not detect a vehicle ahead, ACC will instead
maintain the speed set by the driver.
ACC is designed to smoothly regulate speed.
However, the driver must apply the brakes in sit-
uations that require immediate braking such as
when there are great differences in speed
between vehicles, or if the vehicle ahead brakes
suddenly. Due to limitations in the radar sensor,
braking may occur unexpectedly or not at all.
Adaptive Cruise Control can follow another vehi-
cle from a standstill up to 125 mph (200 km/h).
Always observe posted speed limits.
The driver can also toggle between ACC and
Cruise Control (CC) – see the article "Switching
between Cruise Control and Adaptive Cruise
Control".