The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.
See also:
Resetting the tone settings
All tone settings can be reset to the default setting.
1. "CD/Multimedia", "Radio" or "Settings"
2. "Tone"
3. "Reset" ...
Adjusting
Vehicle
Equipment
...
Interior motion sensor
The windows and glass sunroof must be closed
for the system to function properly. ...