See also:

When “CHECK DISC” is displayed
Press the eject button to unload the discs. Check that the disc is not damaged or scratched, and also check that the disc is inserted correctly. This message may appear when using some CD-RW discs. ...

Tone and balance control (type A, B and C audio)
Each brief press of the “TUNE/TRACK/ CH” dial changes the control modes in the following sequence. Choose the preferred level for each mode by turning the “TUNE/TRACK/CH” dial. The control ...

Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power. The brak ...