Tire Pressure Sensor Fault

Ah, sounds familiar! I've had a similar issue with my 407. It's like having a persistent little gremlin messing with your tire pressure readings. In my case, it started with intermittent warnings, then became constant. You might want to check if all your tires are actually inflated to the correct pressure first, just to rule out the obvious. If they are, it very well could be the TPMS sensor battery as you suspect. How old are the sensors?

Thanks for the reply! Yes, I've double-checked the tire pressures, and they're all spot on. How did you confirm that it was the sensor battery in your case? Did you have to replace all the sensors, or were you able to test them individually somehow?

Unfortunately, I couldn't test the sensors myself. It was beyond my capabilities. Since the tires were properly inflated, and the error persisted, I suspected the TPMS. I took it to a workshop, and they confirmed it was indeed a faulty sensor. They said the batteries in those sensors only last so long, like a phone battery eventually giving up. They replaced the sensor, and the error disappeared. The bill was about 280€. If you can't test the sensors yourself, I would suggest taking it to a professional to avoid any unnecessary hassle.

Thanks for the advice. I think you're right, taking it to a workshop is probably the best bet. I'll get them to check the sensors. Just wanted to know what to expect. Cheers for the info! Turns out the sensor was faulty and I needed a replacement, costing 280€.