Using the Delete All Name Tags Command
The delete all name tags command deletes all stored phone book name tags and route name tags for OnStar (if present).
To use the delete all name tags command:
1. Press and hold 
for two seconds.
The system
responds with “Ready” followed by a tone.
2. Say “Delete all name tags”. The system responds with “You are about to delete all name tags stored in your phone directory and your route destination directory. Are you sure you want to do this? Please say yes or no.” • Say “Yes” to delete all name tags.
• Say “No” to cancel the function and return to the main menu.
See also:
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...