See also:

Muting
Audio for the rear screens can be muted from the front center control panel. This function can be activated under RSE settings Mute as explained in points 2-4 in the section "Selecting ...

Replacing the battery
1. Switch off the ignition. 2. Wait at least 5 minutes after switching off the ignition before disconnecting the battery so that all information in the vehicle's electrical system can be stored ...

Accessory installation
We strongly recommend that Volvo owners install only genuine, Volvo-approved accessories, and that accessory installations be performed only by a trained and qualified Volvo service technicia ...