2012 Chevrolet Tahoe Owner's Manual - Page 45

Keys, Doors, and Windows 2-9 Power Door Locks Press Q or K on the Remote Keyless Entry (RKE) transmitter. See Remote Keyless Entry (RKE) System Operation on page 2‑3. Delayed Locking When locking the doors with the power lock switch and a door or the liftgate 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. 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. You can program this feature using the Driver Information Center (DIC). See "Delay Door Lock" under Vehicle Personalization (With DIC Buttons) on page 5‑47. 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 5‑47 for more information on DIC programming. Lockout Protection If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock. If the passenger side power door lock switch is pressed when the front passenger door is open and the key is in the ignition, all of the doors will lock and then the front passenger door will unlock. Power Folding Mirrors Shown, Other Models Similar Q (Lock): Press to lock the doors. K (Unlock): Press to unlock the doors.