VW Taos Tire Sensor Glitch Causes False Warnings

As someone with moderate car repair experience, I had a very similar issue with my 2019 VW Tiguan. The tire pressure warning kept appearing despite proper tire inflation levels confirmed with a reliable pressure gauge. After checking all air valves and finding normal pressure readings, I took it to a workshop. The diagnostic revealed that the tire pressure monitoring system (TPMS) sensors needed battery replacement. These sensors communicate wirelessly with the car's computer, and when their batteries die, they trigger false warnings. The repair cost was 280€ for replacing all sensor batteries, including programming them to sync with the vehicle system. Since then, no more false warnings have appeared. For your Taos, it sounds like the same issue, but to be more certain could you share: Are the warnings constant or intermittent? Did the sensor fault appear suddenly or gradually? Have you recently had any tire work done? Which specific error codes were stored? This information would help determine if your case matches mine or if there might be other underlying issues with the TPMS system.

Thanks for sharing the details about TPMS issues. After my latest service at 49588km, the warnings started appearing intermittently. The error codes stored were B1234 and C5678. The TPMS issue surfaced suddenly after a cold spell, with no prior tire work done. The air pressure readings remain stable when checked manually, but the flat tire warning keeps popping up out of nowhere on the display. Seems like your sensor battery replacement suggestion could be the solution, especially since the original TPMS sensors are now about 3 years old.

Thanks for those additional details. The timing of your TPMS issue starting after the service at that mileage is significant. In my Tiguan, the sensors also began failing around the 45000-50000km mark, particularly during colder weather. The error codes you mentioned align with typical TPMS sensor battery depletion symptoms. When my sensors were dying, the low tire pressure warnings would appear out of nowhere during cold starts, even though a pressure gauge consistently showed correct tire inflation. The 3-year age of your sensors matches the typical TPMS sensor battery lifespan. Worth noting that when my first sensor started failing, the others followed within months. I ended up replacing all sensors at once to avoid multiple workshop visits. One quick test you can try: Reset the TPMS system after checking tire pressure with a reliable gauge. If the warning returns within a few days despite stable pressure readings, this strongly indicates sensor battery issues rather than actual tire inflation problems. The repair should be straightforward, and costs are usually similar to what I paid. Just ensure the workshop programs the new sensors correctly to avoid communication issues with your Taos computer system.

Thanks for the thorough explanation about TPMS issues. The behavior you described matches exactly what my Taos is experiencing. Those cold morning warnings despite proper air pressure readings were starting to worry me. Based on your experience and the similar timing of sensor failure around 50000km, I will schedule an appointment to have all TPMS sensors replaced at once. Since the flat tire warnings are becoming more frequent and the pressure gauge keeps confirming correct tire pressure, waiting longer might just lead to more sensor failures. The 280€ cost seems reasonable to fix this issue permanently and avoid multiple repair visits. Will make sure to request proper sensor programming when booking the service. Do you mind if I check back after the repair to confirm if this resolved the unusual warning messages? It would be great to verify the fix worked as well for my Taos as it did for your Tiguan.