That's how my 03' functions, one press drivers door, two presses all the doors, using the switch on the door unlocks all doors.
Anyone know if the system can be programmed to unlock all doors when you shut off the ignition? It only seems to unlock my front doors and i have to hit the switch or the remote to let the kids out the back, that is unless they pull up the door lock knob. I thought maybe i had the child lock on in the doors because pulling the door handle inside won't unlock the door at the same time, but i verified the setting of the child locks on th edge of the back doors and they are indeed off.