2003 Chevrolet Venture Owner's Manual - Page 123

Last Door Closed Locking The last door closed locking feature will delay the power locking of the doors and liftgate for up to five seconds after exiting the vehicle, when the power door lock switch or the lock button on the remote keyless entry transmitter is used to lock your vehicle. Programmable Automatic Door Locks All of the doors will lock automatically when you move your shift lever out of PARK (P). All doors will unlock automatically when the ignition is turned off while the shift lever is in PARK (P). If someone needs to get out while you are not in PARK (P), have that person use the manual lever or the power door lock switch. When the door is closed again, it will not lock automatically. Use the manual lever or the power door lock switch to lock the door. To cancel this delay, press the power door lock switch or the lock button on the remote keyless entry transmitter a second time immediately. If any door or the liftgate is open when locking the vehicle, three chimes will be heard signaling that last door closed locking is being used. Five seconds after the last door is closed, all of the doors will lock. If the ignition is in RUN or ACCESSORY, this feature will not lock the doors. To change the way automatic door locks operate, see Vehicle Personalization on page 2-62. With the automatic door locks feature, you can lock or unlock the doors at any time, either manually or using the power door lock switches. To turn the last door closed locking feature off or on, see Vehicle Personalization on page 2-62, 2-12