With most of my sensors being 8 years old, I bought a new one just in the case that I needed a new one. My car passed inspection a few weeks ago, but 2 of my tires were cracking, good tread, but cracking. When the new tires were mounted, I had the sensor available to the mechanic, but He told me my existing ones were still good. I now have an extra TPMS sensor I will not use this year; please tell me, will this one last 5 years or so without being used?
They may be still working today but what about next year? It won’t save you money having the tires broken down later to replace the sensors when they fail.