See also:

Operating the tailgate manually
The power tailgate can be disconnected from the vehicle’s electrical system by quickly pulling the outer handle twice. The tailgate can then be opened/closed manually. ...

Input volume
Adjust the input volume in the RSE menu, under A/V AUX input volume. ...

Seat belt maintenance
Check periodically that the seat belts are in good condition. Use water and a mild detergent for cleaning. Check seat belt mechanism function as follows: attach the seat belt and pull rapidly on t ...