Volvo 2011 S80 Owner's Manual download pdf (Page 165)

04 Comfort and driving pleasure

Adaptive Cruise Control (ACC)*

04

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* Option/accessory, for more information, see Introduction.

165

Standby mode due to action by the driver

ACC is temporarily deactivated and put in

standby mode:

•

when the brakes are applied

•

if the gear selector is moved to N

•

if the accelerator pedal is depressed for

more than 1 minute.

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:

•

the vehicle's speed falls below 20 mph

(30 km/h)

•

the wheels lose traction

•

brake temperature is high

•

engine speed (rpm) is too low or too high

•

the radar sensor is obstructed by, for

example, wet snow or rain.

Turning ACC off completely

A short press on in standby mode or a long

press in active mode turns ACC off completely.

The set speed and time interval are then

cleared from the system's memory and cannot

be resumed by pressing .

The radar sensor and its limitations

In addition to being used by ACC, the radar

sensor is also used by Distance Alert (see

page 170) and Collision Warning with Auto-

brake (see page 173). This sensor is designed

to detect cars or larger vehicles driving in the

same direction as your vehicle, in the same

lane.

WARNING

Accessories or other objects, such as extra

headlights, must not be installed in front of

the grille.

Modification of the radar sensor could make

its use illegal.

The radar sensor's capacity to detect vehicles

ahead is impeded:

•

if the radar sensor is obstructed and can-

not detect other vehicles, for example in

heavy rain, or if snow or other objects are

obscuring the radar sensor.

NOTE

Keep the area in front of the radar sensor

clean.

•

if the speed of vehicles ahead is signifi-

cantly different from your own speed.

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