Originally published by Tire Review on December 19, 2025
This episode delivers practical TPMS diagnostic tips, including cold-weather sensor behavior and winter wheel change procedures.
Technicians are juggling enough each day, so when it comes to TPMS service, having a simpler workflow matters. In this episode, we break down several practical TPMS diagnostic tips and strategies that help save time, prevent misdiagnosis, and make everyday service more efficient. That begins with stocking a single brand of sensor that offers multiple valve-stem options, supports both frequency types, and works across the majority of vehicles on the road. Reducing complexity in your inventory can make servicing vehicles smoother and faster.
As colder weather arrives, TPMS performance can change. Sometimes dramatically. You’ll see how freezing temperatures slow down the chemical reaction inside lithium-ion sensor batteries, resulting in reduced voltage output. When that happens, sensors may struggle to transmit signal data far enough, occasionally triggering fault codes. In many cases, those codes disappear once the tire and wheel assembly warms back up. Understanding that behavior helps prevent unnecessary part replacements and gives you a clearer diagnostic path when cold-weather issues appear.
We also cover what happens when customers run two sets of wheels – summer and winter – and how different vehicles handle sensor registration. Older platforms often require a complete relearn or re-registration each time wheels are swapped. Newer models, however, may allow seasonal configuration changes right in the infotainment settings, eliminating extra steps and learning procedures. Just drive for a short period and let the system relearn on its own.
Finally, when diagnosing unusual problems (especially radio-frequency interference), referencing live data values such as PSI readings can reveal whether the system is communicating properly. It’s a simple but powerful diagnostic step that can lead directly to the root cause.
This episode brings together practical advice that helps shops service TPMS systems smarter, faster, and with fewer surprises.
