I searched the forum and found several threads with this topic, however none were recent and I wanted to re-visit this topic. I have a 2013 Sport with 35k miles on it. So far I have had 2 TPMS sensors that have needed to be replaced due to air leaking out of the valve stem. I struggle to see how this part can fail (twice) with that little wear/age. I wanted to see if anyone else was having this problem and if it was Sport specific due to the 18" wheels and tires or if it is the same sensor for all models. The truck is always garage kept and both times has been the same cause. I am cleaning the truck and notice a small hiss sound of air leaking from the valve stem. Both times the dealer says the entire sensor will most likely need to be replaced as moisture gets into it and causes corrosion eventually leading to the leak. I only care because this is not a cheap fix. 1st time was luckily still under warranty, but second time was $170 ($85 part and the rest labor I suppose to break down the tire, replace the sensor, mount and balance). I obviously can't do this myself due to lack of tools. Was curious if anyone else has had this problem and if there are any recommendations. I'm preparing myself for the other 2 going bad in the near future....because it seems the odds are good with the first 2 of 4 already going bad.