2011 Volvo S60 Owner's Manual - Page 164

04 Comfort and driving pleasure Collision warning with Full Auto-brake and Pedestrian Detection* WARNING Limitations Strong sunlight, reflections, extreme light contrasts, the use of sunglasses, or if the driver is not looking straight ahead may make the visual warning signal in the windshield difficult to see. For this reason, always activate the audible warning signal. Slippery driving conditions increase braking distance, which can reduce the system's capacity to avoid a collision. In these conditions, the ABS and DSTC systems provide the best possible braking effect while helping to maintain stability. WARNING • • • 04 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 153. • In certain situations, the system cannot provide warnings or warnings may be delayed if traffic conditions or other external factors make it impossible for the radar sensor or camera to detect a pedestrian or a vehicle ahead. Warnings may not be provided if the distance to the vehicle ahead is short, or if movements of the steering wheel/ brake pedal are great, such as during active driving. The sensor system has a limited range for pedestrians and provides warnings and braking effect most effectively at speeds up to 30 mph (50 km/h). For stationary or slow-moving vehicles, the system functions best if your vehicle's speed is below approximately 45 mph (70 km/h). Warnings for stationary or slow-moving vehicles may not be provided in dark conditions. • NOTE • • When Adaptive Cruise Control is used, the warning light and signal will be used by that function, even if the warnings provided by Collision Warning have been deactivated by the driver. In situations where traffic is moving at considerably different speeds, or if the vehicle ahead brakes suddenly, warnings may be considered to be late, even if the setting Long has been selected. NOTE The visual warning signal may be temporarily disengaged in the event of high passenger compartment temperature due to strong sunlight, etc. If this occurs, the audible warning signal will be used, even if it has been deactivated in the menu system. • • Checking settings The current Collision Warning settings can be checked by pressing MY CAR on the center console control panel and going to Settings Car settings Collision warning. The Collision Warning system uses the same radar sensors as Adaptive Cruise Control. For more information on the radar sensor and its limitations, see page 148. 164 * Option/accessory, for more information, see Introduction.