2008 Toyota Prius Owners Manual - Page 291

3-3. Using the audio system Adjusting sound quality and balance STEP 1 STEP 2 Touch on the screen. Adjust the settings, referring to the following table. Once you have finished, touch . Sound quality mode High-pitched tones* Mid-pitched tones* (Type A only) Low-pitched tones* Front/rear volume balance Left/right volume balance 3 Display Level Touch Interior features -5 to 5 -5 to 5 or -5 to 5 F7 to R7 or L7 to R7 or *: The sound quality level is adjusted individually in each radio or CD mode. 263 PRIUS_U_(L/O_0802)