We just installed the TPMS on our Newmar and Jeep. Don'tcha know first time out we got a warning, found a safe place to pull out and yep, the inside dual drives side was low pressure, it wasn't when we left. got out the hose and added air back to 100 psi. 15 minutes latter we got the alarm again, this time it was down to 65 psi. when we pulled into the Les Schwab tire center. They pulled it checked it and found the hose that allows us to fill/service the tire has failed, I think it was a save, but I could have ruined the hose installing the TPMS. but again, why would the hose fail by screwing on a monitor? the other inside dual got a new hose too.