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:
Noise Control System
The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 4 536 kg (10,000 lbs). The noise control syste ...
Under the Hood
195-horsepower, 4.3-liter V-6 with iron block and cylinder heads,
cam-in-block, two valves per cylinder and 260 pounds-feet of torque
302-hp, 4.8-liter V-8 with iron block and aluminum cylinder hea ...
Turning the System On and Off
The system can be disabled through the Driver Information Center (DIC).
See “Park Assist” under Vehicle Personalization (With DIC Buttons) on page 5‑46 for more information.
URPA defaults ...