2013 Toyota Sienna Owners Manual - Page 565

2-2. Instrument cluster and information display ● Setting the tone STEP 1 Select "Tone" on the "Screen Settings" screen, and press the "SELECT RESET" button. STEP 2 Press the "INFO" or "SETUP" button to adjust the tone. +: Brighter -: Darker Press the "SELECT RESET" button to exit the screen.