Volvo XC90 Owner's Manual page 311

In order to help your vehicle follow the vehicle
ahead as smoothly and comfortably as possi-
ble, Adaptive Cruise Control allows the time
interval to vary noticeably in certain situations.
At low speeds, when the distance to the vehi-
cle 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
activated, 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.
Related information
Driver support systems (p. 276)
•
Adaptive Cruise Control* (p. 286)
•
Pilot Assist* (p. 296)
•
Distance Alert* (p. 281)
•
Head-up display* (p. 143)
•
DRIVER SUPPORT
Auto-hold braking with driver
support
The driver support functions Adaptive Cruise
Control* and Pilot Assist* have a special brake
function in slow traffic and while stationary.
Braking function in slow traffic and at
a standstill
In slow-moving, stop-and-go traffic or when
stopped at a traffic light, driving will resume
automatically if the vehicle is stopped for less
than approx. 3 seconds. If it takes more than 3
seconds for the vehicle ahead to begin moving
again, the driver support function will go into
standby mode and the auto-hold brake func-
tion will activate.
The function can be reactivated by:
–
Pressing the button on the steer-
•
ing wheel keypad.
Pressing the accelerator pedal.
•
> The function will resume following the
vehicle ahead if it begins to move
within approx. 6 seconds.
WARNING
A noticeable increase in speed may follow
when the speed is resumed with the
steering wheel button.
* Option/accessory.
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