2004 GMC Envoy Owner's Manual - Page 76

Delayed Locking This feature delays the locking of the doors and the liftgate when using the power lock or the remote keyless entry system. The first time you attempt to lock the doors with the driver's door open, three chimes will signal that delayed locking is being used. This can be performed by using either power lock switch or the remote keyless entry transmitter. All doors and the liftgate can be reopened for up to five seconds from the time the last door is closed. Five seconds after the last door is closed, all the doors will lock. You can lock the doors immediately by using the power door lock switch or by pressing the lock button on the optional remote keyless entry transmitter a second time. If the key is inserted in the ignition, this feature will not lock the doors. The lockout prevention feature will operate instead. You can enable or disable the delayed locking feature. If the feature is disabled, the doors will lock immediately when a power door lock switch or remote keyless entry transmitter lock button is pressed. Programming Delayed Locking To turn the delayed locking feature on or off, do the following: 1. Press and hold the power door lock switch on the driver's door in the lock position. 2. Press the remote keyless entry transmitter unlock button twice. If the delayed locking feature was on, it will now be off. If the feature was off, it will now be on. Programmable Automatic Door Locks Your vehicle is equipped with an automatic lock/unlock feature which enables you to program your vehicle's power door locks. You can program this feature through the Driver Information Center (DIC), or by the following method. 2-10