I figured it out! I too, was looking to see if someone knew how to turn off the door chime while the door(s) is open while the truck is in ACC mode. I made an account to this form just to respond becomes i am excited to figure it out and help others. Either way, for reference i have a 2017 Ram 1500, on the door itself there is hole where the lock engages to the frame/hook once the door is closed. You can push the engaging mechanism in and then down, you will hear a click. Push it one more time to hear an additional click and the door chime will turn off. I took two pictures to help. The first shows the hole i am mentioning and the second shows what it will look like once fully engaged (after the second click). To disengage (turn the alarm back on) simply pull the door handle.