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:
Securing Child Restraints (Right Front Passenger Seat)
The vehicle has airbags. A rear seat is a safer place to secure a forward-facing child restraint.
See Where to Put the Restraint on page 3‑44.
In addition, the vehicle has a passenger sensing ...
Lane Departure Warning (LDW)
For vehicles with this feature, read the entire section before using it.
WARNING
The LDW system does not steer the vehicle and is an aid to help the vehicle stay
in the driving lane. The LDW syste ...
Vehicle Overview
GM says the Sierra 1500 Hybrid's gasoline V-8 and electric motors team up for
an overall mileage improvement compared with the regular Sierra. The Sierra
Hybrid is only available as a rear- or fou ...