See also:

Delayed Locking
When this feature is enabled and the doors are locked with the power lock switch on the instrument panel or front door panels, three chimes sound to signal that the delayed locking feature is in use ...

Setting the Clock
The navigation system time and the analog clock operate independently. Changing the time through the navigation system does not change the time on the analog clock. See Clock   to change ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar sy ...