""You could also lock the truck and let it sit for a short bit. Then go back an just hit the unlock button to unlock the truck. Then not do anything. Don't open any doors. After a short bit (10 minutes I think) it should relock all the doors. If that works, then I'd feel comfortable that the system is working as designed (WAD).""

REALLY??? Did I read that right ? The doors should re-lock themselves? Is this something that you have to program it to do?