See also:

Volume control switch
Press the switch to the “+” side to increase the volume. Press the switch to the “−” side to reduce the volume. A number indicating the volume will be shown on the audio display. ...

Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire quality grading standards”. ...

Setting passkey
1. Select the “SET PASSKEY” menu by operating the “TUNE/TRACK/CH” dial. After the currently set passkey is displayed, a new passkey can be entered. 2. Input the new passkey by operating the “TUNE/TR ...