The TPMS has sensors at each wheel and the sensors have a battery in them. The batteries die over time and the sensor(s) need replacing. Any tire shop can do this.
This. I waited until I needed new tires though because as part of the valve stem, the tire has to come of the rim and therefore needs rebalancing. DO NOT let any tire shop tell you they need to program the new TPMS to your car! Scam. Just buy the Mopar ones so you'll get decent quality and they program themselves once you drive about a mile or less. I JUST replaced them on my 2010 Charger and the light went off in less than a mile. They have a 6-10 year battery life expectancy.
