2010 Volvo XC60 Owner's Manual - Page 164

04 Comfort and driving pleasure Collision warning with Auto-brake* WARNING Fault tracing and actions If the message Windshield sensors blocked is displayed, this means that the camera is obscured and cannot detect vehicle or road marker lines in front of the vehicle. This, in turn, means that Collision Warning with Auto-brake, Lane Departure Warning, and Driver Alert Control will not have full functionality. The table lists possible causes for this message being displayed, and suitable actions. • The camera has the same limitations as the human eye. In other words, its "vision is impaired" by adverse weather conditions such as heavy snowfall, dense fog, etc. These conditions may reduce the function of systems that depend on the camera or cause these systems to temporarily stop functioning. Never place any objects, decals, etc., on the windshield in front of the camera. This could reduce or block the camera's function, and could cause one or more of the systems that utilize the camera to stop functioning. Strong sunlight, reflections from the road surface, ice or snow covering the road, a dirty road surface, or unclear lane marker lines may drastically reduce the camera's capacity to detect the side of a lane or another vehicle. 04 • • Cause The surface of the windshield in front of the camera is dirty or covered with ice or snow. Fog, heavy rain or snow is interfering with the function of the camera. Action Clean or clear the section of the windshield in front of the camera. No action possible. Heavy precipitation may affect the function of the camera. 164 * Option/accessory, for more information, see Introduction.