2010 Toyota Matrix Owners Manual - Page 247
2010 Toyota Matrix Manual
Page 247 highlights
3-3. Using the hands-free phone system (for cellular phone) Setting voice guidance volume STEP 1 STEP 2 Select "Guidance Vol" by using Change the voice guidance volume. To decrease the volume: Turn . counterclockwise. To increase the volume: Turn clockwise. Initialization 3 Interior features STEP 1 Select "Initialize" and then "Confirm" by using . STEP 2 Select "Confirm" by using . 229