See also:

Activating HDC
Press the button; the LED above the button lights up. ...

Issuing a warning
If the vehicle begins leaving the lane and a lane marking has been detected, the steering wheel begins vibrating. If the turn signal is set before the lane is changed, a warning is not issued. ...

Opening/closing the glass sunroof andsliding visor together
Briefly press the switch twice in succession in the desired direction past the resistance point. The glass sunroof and sliding visor move together. Pressing the switch again stops the motion ...