See also:

Lubrication oil circulation in the refrigerant circuit
Operate the air conditioner compressor at a low engine speed (at idle or low driving speeds) a few minutes each month during the off-season to circulate its oil. ...

Tone and balance control
Each brief press of the “TUNE/TRACK/ CH” dial changes the control modes in the following sequence. Choose the desired level for each mode by turning the “TUNE/TRACK/CH” dial. The control func ...

Using the Hands-free system
Turning on/off the Hands-free mode 1) OFF hook switch 2) ON hook switch To turn on the Hands-free mode, press the OFF hook switch . To turn off the Hands-free mode, press the ON hook switch . ...