2010 Toyota 4Runner Owners Manual - Page 425
2010 Toyota 4Runner Manual
Page 425 highlights
3-4. Using the hands-free phone system (for cellular phone) Setting voice guidance volume STEP 1 STEP 2 Select "Guidance Volume" using Change the voice guidance volume. To decrease the volume: Turn . counterclockwise. To increase the volume: Turn clockwise. 3 Initialization Interior features STEP 1 Select "Reset Settings" and then "Confirm" using . STEP 2 Select "Confirm" using . 403