Volvo 2013 XC70 - Manual (Page 144)

04 Driver support
Adaptive Cruise Control (ACC)*
04
142 * Option/accessory, for more information, see Introduction.
Standby mode due to action by the driver
ACC is temporarily deactivated and put in
standby mode:
• if the brakes are applied
• if the gear selector is moved to N
• if the driver drives at a speed higher than
the set speed for more than 1 minute.
In this happens, the driver will have to regulate
the vehicle's speed.
NOTE
If the accelerator pedal is only depressed for
a short time, such as when passing another
vehicle, ACC is deactivated temporarily and
is reactivated when the pedal is released.
Automatic standby mode
Adaptive cruise control is linked to other sys-
tems such as the stability and traction control
system (DSTC). If this system is not functioning
properly, adaptive cruise control is automati-
cally deactivated and will go into standby
mode.
In the event of automatic deactivation, an audi-
ble signal will sound and the message
Cruise
control Cancelled is shown in the display.
The driver must then intervene and adapt the
vehicle's speed to the surrounding traffic and
regulate the distance to the vehicle ahead.
An automatic switch to standby mode may be
caused if:
• engine speed (rpm) is too high/low
• the vehicle's speed goes below 18 mph
(30 km/h)
3
• the wheels lose traction
• brake temperature is high
• the radar sensor is obstructed by, for
example, wet snow or rain.
Resuming the set speed
If ACC is in standby mode, it can be reactivated
by pressing the
button on the steering
wheel keypad. The vehicle will return to the
most recently set speed.
WARNING
The vehicle may accelerate quickly after
has been pressed if its current speed is
considerably lower than the set speed.
Passing another vehicle
If your vehicle’s speed is being regulated by
ACC and the driver indicates that he/she would
like to pass the vehicle ahead by using the
left turn signal, ACC can assist by accelerating
briefly.
This function is active at speeds above approx-
imately 45 mph (70 km/h).
WARNING
Please be aware that this function will also
cause the vehicle to accelerate briefly in
certain situations other than passing
another vehicle, for example using the left
turn signal to indicate a lane change or a
turn toward a highway exit at speeds above
approximately 45 mph (70 km/h).
Queue Assist
Queue Assist is an added ACC feature that is
linked to your vehicle's automatic transmis-
sion.
Queue Assist consists of the following func-
tions:
• Enhanced speed interval (including when
the vehicle is at a complete stop or is mov-
ing at speed below 18 mph (30 km/h))
• Automatic standby mode when ACC
changes target vehicles
• No automatic braking when at a standstill
• The parking brake is applied automatically
3 Does not apply to vehicles equipped with the optional Queue Assist