2008 Volvo V70 Owner's Manual - Page 172

183 04 Comfort and driving pleasure Blind Spot Information System (option) When does BLIS function The system functions when your vehicle is moving at speeds above 6 mph (10 km/h). When you pass another vehicle: The system reacts when you pass another vehicle at a speed of up to 6 mph (10 km/h) faster than that vehicle. When you are passed by another vehicle: The system reacts if your vehicle is passed by another vehicle at a speed of up to 43 mph (70 km/h) faster than your vehicle. WARNING BLIS does not function in sharp curves. BLIS does not function when your vehicle is backing up. If you are towing a wide trailer, this may prevent the BLIS cameras from detecting other vehicles in adjacent lanes. How BLIS functions in daylight and darkness Daylight BLIS reacts to the shape of surrounding vehicles. The system is designed to help detect motor vehicles such as cars, trucks, buses, motorcycles, etc. Darkness BLIS reacts to the headlights of surrounding vehicles. In order to be detected by BLIS, a vehicle in the blind area must have its headlights on. This means, for example, that the system will not detect a trailer without headlights that is being towed behind a car or truck. WARNING BLIS does not react to cyclists or mopeds. BLIS does not react to vehicles that are standing still. The function of the BLIS cameras may be affected by intense light, or when driving at night in areas where there are no external sources of light (e.g., street lights, other vehicles, etc.). In such cases, the system may react as if the