2004 Chevrolet Astro Owner's Manual - Page 91

Hatch Release You can use your key to unlock the hatch and all of the other doors from the outside. Insert the key into the hatch release button and turn it counterclockwise. All of the doors will unlock. You may also use the keyless entry system described earlier. The hatch can be opened or closed without a key if the door lock system is unlocked. To open the hatch, unlock it, then press the button and lift the handle located in the center of the door. To lock the power lock system from the outside, insert the key in the hatch release button and turn it clockwise. All doors will lock. 2-13