Using the “Delete All Name Tags” Command
This command deletes all stored name tags in the Hands-Free Calling Directory and the OnStar Turn-by-Turn Destinations Directory, if equipped.
To delete all name tags:
1. Press and hold 
for two seconds.
2. Say “Delete all name tags.”
See also:
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We recommend that ...
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The cabin bears far more resemblance to the Equinox than does the exterior,
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The dashboard features angular styling and ...
Using the “Delete” Command
1. Press and hold for two seconds.
2. Say “Delete.” 3. Say the name tag you want to delete. ...