Toyota Prius 2007 Pocket Reference Manual page 226

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4. Input the number and touch "OK".
198
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D
Deleting the speed tone individually.
You can delete "1" to "6" of the speed
tone.
If you delete them all at once, all of 6
numbers are deleted.
1. Touch the "Delete" switch of "Speed
Tone".
Umar: 03214530584
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2. Touch the switch you want to delete.
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