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:
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate
the next engine oil change. To reset the system:
1. Turn the ignition to ON/RUN, with the engine off.
2. Press ...
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase vehicle speed. When you take your foot off the pedal, the vehicle will slow down to the previously set cruise speed. ...
Inserting a Disc
Insert a disc partway into either slot, label side up. The player pulls it in and the disc should begin playing.
(Loading a disc into the system, depending on media type and format, ranges from 5 to ...