Subaru 2009 Impreza Navigation System - Manual (Page 220)

220 Handsfree
Other Bluetooth settings
Deleting the phone number from the Speed Dial
memory
It is possible to delete the phone number from the Speed Dial memory.
1
Press the button.
2
Select (Phone).
3
Select (Speed Dial Settings).
4
Select (Delete).
5
Select a Speed Dial memory which you want to delete.