Sorry, should have said this. When I checked the air pressure, I did verify that there is a sensor in each wheel. Plus, at one time, there was no light on at the dash. Unfortunately, the owner of truck just passed so I have no way to get a timeline but the general consensus is that the door locks and the windows and the TPMS problems, all started happening at the same time or at least the windows and locks problems did.I personally would start by checking to verify that each wheel has a TPMS in it, and that its broadcasting.
In my area, you can take it to a local Discount Tire, and they will setup the TPMS for free, as long as they dont have to put it on a lift.