See also:

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. ...

RSE-AUX connectors and 12-voltsocket
The three color-coded (yellow-white-red) RSEAUX connectors can be used to connect an auxiliary device to the RSE system. Always follow the connection instructions provided with the auxiliary devic ...

Quality and Equipment
A passion for high quality lies at the heart of the Volvo brand. This is inherent not only in the build quality that reflects the ruggedness, durability and reliability for which Volvo is renowned ...