2011 Volvo S80 Owner's Manual - Page 174

04 Comfort and driving pleasure Collision warning with Auto-brake* Brake Support If the risk of collision continues to increase after the collision warning has been given, Brake Support is activated. Brake Support prepares the brake system to react quickly, and the brakes are applied slightly. This may be experienced as a light tug. If the brakes are applied quickly, full braking effect will be provided, even if pressure on the brake pedal is light. 04 Operation Some settings are controlled from the center console via a menu system. settings Collision warning settings Warning distance The warning distance determines the level of sensitivity used by the system. The warning distance Long provides an earlier warning. Begin by using Long and if the system gives too many warnings, try changing to Normal. On and off To switch Collision Warning on or off, go into the menu Car settings Collision warning settings and select On or Off. When the engine is started, the setting that was selected when it was switched off will be used. When the engine is switched on, the Collision Warning setting that was being used when it was switched off will be the default setting. WARNING Auto-brake If a collision is imminent and the driver has not applied the brakes or begun to steer around the vehicle, the auto-brake function is activated without the driver pressing the brake pedal. Limited brake force is applied to reduce the vehicle's speed when the collision occurs. The driver must apply the brakes for full braking effect. • • • The setting Short should only be used in situations where traffic is light and moving at low speeds. Collision Warning alerts the driver to the risk of a collision but this function cannot reduce the driver's reaction time. For Collision Warning to be as effective as possible, it is recommended that Distance Alert be set to 4 or 5, see page 170. Activating/deactivating warning signals The collision warning system's audible and visual signals are activated automatically when the engine is started if the collision warning system is switched on. The audible warning signal can be activated/ deactivated by selecting the alternative Collision warning on or Collis'n warning OFF in Car settings Collision warning settings Warning sound. WARNING The auto-brake function cannot prevent a collision but instead is intended to reduce speed at the moment of impact. For full braking effect, driver must apply the brakes. Setting a warning distance This setting determines the distance at which the visual and audible warnings are triggered. Select Long, Normal or Short underCar NOTE The auto-brake function is always on and cannot be turned off. 174 * Option/accessory, for more information, see Introduction.