2010 Toyota Tundra CrewMax Navigation Manual - Page 267

09 01.26 SETUP - Volume setting You can adjust the voice and ring volume. D Voice volume setting 1. Touch "Voice Volume". 1. Touch "Volume". 2. Touch "-" or "+" to adjust the voice volume. 3. Touch "OK". D Ring volume setting 1. Touch "Ring Volume". 2. Change each setting according to the following procedures. 3. When you complete all settings, touch "Save". Automatic volume settings for high speed The system will automatically increase the volume by one step up when the speed exceeds 50 mph (80 km/h). 2. Touch "-" or "+" to adjust the ring volume. 3. Touch "OK". 255 2010 TUNDRA Navigation from April.09 Prod.(OM34481U)