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. All doors lock five seconds after the last door is closed.
When the delayed locking feature is in use, pressing 
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instrument panel or front door panels, or the RKE transmitter will override the
feature and lock all doors immediately.
This feature can be programmed by using the Driver Information Center (DIC). See “Delayed Door Lock” in Vehicle Personalization. The delayed locking feature is only available if “Unlocked Door Anti-Lockout” is disabled.
See also:
Steering Wheel Controls
Some audio steering wheel
controls could differ depending
on the vehicle's options.
Controls that can be adjusted at the
steering wheel may include:
SRCE: Press to switch between
AM, FM, o ...
Security
OnStar provides services like Stolen
Vehicle Assistance, Remote Ignition
Block, and Roadside Assistance,
if the vehicle is equipped with these
services. OnStar can unlock the
vehicle doors r ...
Express-Down/Up Windows
Windows with the express feature
allow the windows to be raised and
lowered all the way without holding
the switch.
Press or pull the switch fully and
release it to activate the express
fea ...