If your vehicle is a crew cab, it may have this feature. When locking the doors with the power lock switch or the Remote Keyless Entry (RKE) transmitter and a door is open, the doors will not lock until five seconds after the last door is closed. Three chimes will sound to signal that the delayed locking feature is in use.
Pressing the power lock switch or the lock button on the RKE transmitter twice will override the delayed locking feature and immediately lock all the doors.
You can turn the delayed locking feature off or back on again by doing the following:
This feature will not operate if the key is in the ignition.
You can also program this feature using the DIC. See DIC Vehicle Customization .