2011 Toyota Prius Navigation Manual - Page 270
2011 Toyota Prius Manual
Page 270 highlights
SETUP D Voice volume setting 1. Touch "Voice Volume". D Initializing the settings You can initialize the settings. 1. Touch "Default". 2. Touch "-" or "+" to adjust the voice volume. 3. Touch "OK". 2. Touch "Yes". D Ring volume setting 1. Touch "Ring Volume". 2. Touch "-" or "+" to adjust the ring volume. 3. Touch "OK". 272