2009 Toyota Corolla Navigation Manual - Page 140

AUDIO SYSTEM D Turning the system on and off D Switching between functions "PWR·VOL": Push this knob to turn the audio system on and off. Turn this knob to adjust the volume. The system turns on in the last mode used. "AUDIO": Push this button to display touch screen buttons for audio system (audio control mode). You can select the function that enables automatic return to the previous screen from the audio screen. See "(a) Automatic transition" on page 139 for details. Push "AM·SAT", "FM" or "DISC·AUX" button to turn on the desired mode. The selected mode turns on immediately. Push these buttons if you want to switch from one mode to another. If the disc is not inserted, the "CD" screen will not appear. 146