2012 Toyota Prius Navigation Manual - Page 186

2. SETUP INFORMATION ● The system will automatically increase the volume when the speed exceeds 50 mph (80 km/h). MESSAGE READ OUT VOLUME SETTINGS Message read out volume can be adjusted. NEW MESSAGE NOTIFICATION TONE SETTINGS A new message voice notification tone can be selected. 1 Touch "Message Readout Volume". 1 Touch "New Message Notification Tone". 2 Touch "-" or "+" to adjust the message read out volume. 2 Touch the desired new message notification tone. 3 Touch "OK". INFORMATION ● The system will automatically increase the volume when the speed exceeds 50 mph (80 km/h). New message notification tones can be heard by touching the screen buttons. 3 Touch "OK". 172 PRIUS v (US) NAVI 47675U 11.09.08 12:54