Toyota 2011 Matrix Owner's Manual page 294

Setting voice guidance volume
Select "Guidance Vol" using
STEP 1
Change the voice guidance volume.
STEP 2
To decrease the volume: Turn
To increase the volume: Turn
Initialization
Select "Reset Settings" and then "Confirm" using
STEP 1
Select "Confirm" using
STEP 2
3-4. Using the hands-free phone system (for cellular phone)
.
counterclockwise.
clockwise.
.
3
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