Collision warning – troubleshooting
Pedestrian and Cyclist Detection with Full Auto Brake is designed to assist the driver if there is a risk of a collision with a pedestrian, a cyclist, a vehicle ahead that is at a standstill or one that is moving in the same direction as your vehicle.
Fault tracing and actions
If the message Windscreen Sensors blocked is displayed, this means that the camera is obscured and cannot detect pedestrians, cyclists, vehicles or road marker lines in front of the vehicle.
This, in turn, means that Pedestrian and Cyclist Detection with Full Auto Brake, Driver Alert Control, Lane Departure Warning or Lane Keeping Aid will not have full functionality.
The table lists possible causes for this message being displayed, and suitable actions.
| Cause | Action |
|---|---|
| The surface of the windshield in front of the camera is dirty or covered with ice or snow. | Clean or clear the section of the windshield in front of the camera. |
| Fog, heavy rain or snow is interfering with the function of the camera. | No action possible. Heavy precipitation may affect the function of the camera. |
| The surface of the windshield is clean but the message remains in the display. | Wait a short time. It may take several minutes for the camera to register visibility. |
| The surface between the inside of the windshield and the camera is dirty. | Contact an authorized Volvo retailer or service technician to have this surface cleaned. |
Maintenance
In order to function properly, the camera and radar sensor must be kept clean. Dirt, ice, snow, etc., will reduce the function of these components.
Remove ice and snow when necessary and wash these areas regularly with a suitable car washing liquid.