See also:

Vehicles equipped with Park Assist
Colored fields (4-one per sensor) indicate distance If the vehicle is equipped with the optional Park Assist system, the distance to an object will be indicated more exactly and colored markers ...

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. ...

Bulb specifications
NOTE Please consult a Volvo retailer’s Parts department for the most up-to-date specifications. ...