Volvo XC90 Owner's Manual page 311

Set time interval for driver support
The time interval to the vehicle ahead can be set
for the functions Adaptive Cruise Control*
Pilot Assist and Distance Alert*.
Different time intervals to the
vehicle ahead can be selected
and are shown in the instru-
ment panel as 1–5 horizontal
bars. The more bars, the longer
the time interval. One bar rep-
resents an interval of
approx. 1 second to the vehicle ahead. 5 bars
represents approx. 3 seconds.
NOTE
When the symbol in the instrument panel
shows a vehicle and a steering wheel, Pilot
Assist follows a vehicle ahead at a preset
time interval.
When only a steering wheel is shown, there is
no vehicle ahead within a reasonable dis-
tance.
Adaptive Cruise Control
38
NOTE
When the symbol in the instrument panel
38
,
shows two vehicles, ACC is following the vehi-
cle ahead at a preset time interval.
When only one vehicle is shown, there is no
vehicle ahead within a reasonable distance.
Controls for setting a time interval.
Reduce the time interval
Increase the time interval
Distance indicator
Press the (1) or (2) button to decrease or
–
increase the time interval.
> The distance indicator (3) shows the cur-
rent time interval.
DRIVER SUPPORT
In order to help your vehicle follow the vehicle
ahead as smoothly and comfortably as possible,
Adaptive Cruise Control allows the time interval
to vary noticeably in certain situations. At low
speeds, when the distance to the vehicle ahead
is short, Adaptive Cruise Control increases the
time interval slightly.
NOTE
• The greater the vehicles' speed, the
greater the distance between them for a
set time interval.
• Only use the time intervals permitted by
local traffic regulations.
• If driver support does not seem to
respond with a speed increase when acti-
vated, it may be because the time interval
to the vehicle ahead is shorter than the
set time interval.
WARNING
• Only use a time interval suitable for the
current traffic conditions.
• The driver should be aware that short
time intervals give them limited time to
react and act to any unforeseen traffic
situation.
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* Option/accessory.