2010 Volvo XC60 Owner's Manual - Page 176

04 Comfort and driving pleasure Adaptive Cruise Control (ACC)* WARNING trol. The set speed is then cleared and cannot be resumed. When ACC is activated, the vehicle's speed increases by approximately 1 mph (1 km/h) each additional time is pressed. must then intervene and adapt the vehicle's speed to the surrounding traffic. Automatic deactivation may be caused if: • • Only use a time interval that is suitable in current traffic conditions. A short time interval gives the driver limited reaction time if an unexpected situation occurs in traffic. • the vehicle's speed falls below 20 mph (30 km/h) Deactivation due to action by the driver ACC is deactivated: • the wheels lose traction or if the anti-lock brake system (ABS) is activated 04 The number of bars indicating the selected time interval are shown while the setting is being made and for several seconds afterward. A smaller version of the symbol is then shown to the right in the display. The same symbol is also displayed when Distance Alert is activated, see page 180 . • when the brakes are applied • if the gear selector is moved to N • if the accelerator pedal is depressed for an extended period. • brake temperature is high • engine speed (rpm) is too low • the radar sensor is obstructed by, for example, wet snow or rain. 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. The radar sensor and its limitations The radar sensor is used by both Adaptive Cruise Control and the Collision Warning System with Auto-brake. It is designed to detect cars or larger vehicles driving in the same direction as your vehicle. Deactivating and resuming settings Cruise control is deactivated, either with a short press on , or by action taken by the driver, such as braking, etc. The set speed, for example 55 mph, is then shown in parentheses. Speed and time interval are resumed by . pressing Automatic deactivation Adaptive cruise control is linked to other systems such as ABS, the stability and traction control system (DSTC), and the Distance Alert System. If any of these systems are not functioning properly, adaptive cruise control is automatically deactivated. In the event of automatic deactivation a signal will sound and the message Cruise Control Canceled is shown in the display. The driver 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. WARNING There may be a significant increase in speed after the button has been pressed. A short press on in standby mode or a long press in active mode deactivates cruise con- The radar sensor's capacity to detect vehicles ahead is impeded: 176 * Option/accessory, for more information, see Introduction.