All TPMS on sensors have batteries, usually coin cell in the 2032 or similar size. These batteries may last 6-8 years. Or they may not. Some are sealed in the device, usually inside the tire type and virtually non replaceable, some such as the after market TST 507 Flow Through series can easily by replaced with a tiny screw driver and a battery from wherever they are sold. Mine are via eBay. Walmart or a local drug store sells them too at a vastly inflated price. If that TPMS sensor is inside the tire, your local tire seller van replace the assembly but that may (WILL?) not be inexpensive.
Dave W along with my DW, Susan and our poodlepups, Callie & Molly,2011
Ford F250 6.7 CCLB, 5er Hitch Option w/B&W Hitch,,Ride Rite air bags, 2014
Montana High Country 343RL (38')w/disc brakes