See also:

Volume control buttons
Models without Hands-free system Models with Hands-free system Press the “+” button to increase the volume. Press the “−” button to reduce the volume. A number indicating the volume will be s ...

Auto-dimming function
The auto-dimming function is an anti-glare capability which automatically reduces glare coming from headlights of vehicles behind you. By pressing the power button, the autodimming function is togg ...

ON
This is the normal operating position after the engine is started. ...