GM Service Manual Online
For 1990-2009 cars only

This personalization feature lets the driver delay the actual locking of the vehicle. When the driver's power door lock switch, or the lock symbol on the remote keyless entry is pressed with the key removed from the ignition and the driver's door open, a chime will sound three times to signal that the lock delay mode is active. When all doors have been closed, the doors will lock automatically after five seconds. If any door is opened before this, the five-second timer will reset itself once all the doors have been closed again.

Pressing the driver's or passenger's door lock switch or the lock symbol on the remote keyless entry a second time will override this feature.

You must program this feature through the Driver Information Center (DIC). See DIC Vehicle Personalization .