On my way to our winter site in Green Valley,AZ we spent the night in FT.Stockton,TX. In the morning everything looked good. Got in the truck and the TPMS was beeping and showed just 57lbs in the right rear of our 2900MK. Zipped around the corner to Mckissick's tire service, they immediately pulled the tire and found a small nail in the tire. Fixed it and only charged $15. It was under the kitchen slide. Would have taken the gas lines, etc. I am not touting a particular brand, but do it.