Limitations of the camera unit
The camera has limitations similar to the human eye, i.e. it can "see" worse in for example intense snowfall or rain, dense fog, heavy dust storms and snow flurries. Under such conditions, the functions of camera-dependent systems could be significantly reduced or temporarily disengaged.
Strong oncoming light, reflections in the carriageway, snow or ice on the road surface, dirty road surfaces or unclear lane markings can also significantly reduce camera function when it is used to scan the carriageway to detect pedestrians, cyclists and other vehicles.
The camera unit is placed inside the upper section of the windscreen together with the car's radar unit.
If the driver display shows this symbol with the message Windscreen sensorSensor blocked, see Owner's manual, it means that the camera and radar unit cannot detect other vehicles in front of the car.
The following table presents examples of possible causes for a message being shown, along with the appropriate action:
|The windscreen surface in front of the camera and radar unit is dirty or covered with ice or snow.||Clean dirt, ice and snow from the windscreen surface in front of the camera and radar unit.|
|Thick fog and heavy rain or snow block the radar signals or the camera view.||No action. Sometimes the unit does not work during heavy rain or snowfall.|
|Water or snow from the road surface swirls up and blocks the radar signals or camera view.||No action. Sometimes the unit does not work on a very wet or snow-covered road surface.|
|Dirt has appeared between the inside of the windscreen and the camera and radar unit.||Visit a workshop to have the windscreen inside the unit's cover cleaned - an authorised Volvo workshop is recommended.|
|Strong oncoming light||No action. The camera unit is reset automatically in more favourable light conditions.|
At very high temperatures the camera and radar unit can temporarily be switched off for about 15 minutes after the engine is started so as to protect the unit's electronics. The camera and radar unit restarts automatically when the temperature has fallen sufficiently.
If a crack, scratch or stone chip in the windscreen in front of one of the camera and radar unit “windows” covers an area of approx. 0.5 x 3.0 mm or larger, a workshop must be contacted to have the windscreen replaced. An authorised Volvo workshop is recommended.
If not rectified it can lead to reduced performance for the driver support systems that use the camera and radar unit.
- Volvo recommends against repairing cracks, scratches or stone chips in the area in front of the camera and radar unit. Instead, the whole windscreen should be replaced.
- Before replacing a windscreen, contact an authorised Volvo workshop to verify that the correct windscreen is ordered and fitted.
- The same type or Volvo-approved windscreen wipers must be fitted during replacement.
In order that the radar and camera unit shall function correctly, the windscreen in front of the unit must be kept clear of dirt, ice and snow, and be cleaned regularly with water and car shampoo.