2012 GMC Sierra Owner's Manual - Page 52

2-8 Keys, Doors, and Windows Pressing the power lock switch twice will override the delayed locking feature and immediately lock all the doors. This feature will not operate if the key is in the ignition. This feature can be programmed using the Driver Information Center (DIC). See "Delay Door Lock" under Vehicle Personalization (With DIC Buttons) on page 5‑48. Base Trim For vehicles with power door locks: Power Door Locks Automatic Door Locks The vehicle may have an automatic lock/unlock feature. This feature can be programmed using the Driver Information Center (DIC). See Vehicle Personalization (With DIC Buttons) on page 5‑48 for more information on DIC programming. Crew Cab Premium Trim Shown, Up-Level Similar Q: K: Press to lock the doors. Press to unlock the doors. Delayed Locking The vehicle may have the delayed locking feature. When locking the doors with the power lock switch and a door is open, the doors will lock five seconds after the last door is closed. You will hear three chimes to signal that the delayed locking feature is in use.