Why does the tire pressure monitoring fault light remain on after inflating the tires?
3 Answers
The reasons for the tire pressure monitoring fault are as follows: Dead battery in the detection module: The sensor exists because the battery in the detection module is dead, and a new inspection module needs to be replaced. Clean the detection module: Or there might be something blocking the detection, requiring the detection module to be cleaned. Pairing failure: Failure to pair with the car leads to a tire pressure monitoring fault. You can try re-pairing it yourself, but some vehicles may require professional pairing at a 4S shop. Module damage: The tire pressure monitoring module in the car is damaged and needs to be replaced with a new one. Purpose of monitoring: The tire pressure monitoring system not only alerts the owner to driving safety when the tire pressure is too high, too low, or the temperature is too high but also helps the owner save fuel and money.
I have driving experience, and it's common for the tire pressure light to stay on after a tire repair. The most frequent reason is that the system hasn't reset: the TPMS sensor needs time to re-detect after inflation, so you should drive a few kilometers to see if it turns off automatically. If the light stubbornly remains on, there might be a tire that wasn't properly repaired—like a nail puncture or a slow leak that wasn't detected. Or the sensor could be faulty: the battery might be dead, the signal interrupted, or the sensor damaged, requiring replacement. Additionally, insufficient inflation pressure is critical; cold or hot weather can affect readings, so use a reliable tire pressure gauge to recheck each tire and ensure it meets the standard. For safety, don't ignore the light—visit a professional shop as soon as possible to diagnose and prevent potential hazards.
Haha, I've encountered this issue before! It's so annoying when the tire pressure light won't go off after inflating. From what I've seen, it's mostly because the tire pressure still isn't right or the system needs a manual reset. You might have forgotten to select the reset option in the menu; check the manual to learn how to do it. Another possibility is that one of the sensors is broken—replacing it isn't expensive but takes time. If the light keeps flashing, it might be a slow leak that wasn't fixed properly—like a loose valve. I recommend taking a short drive to try resetting it, then carefully check the tire pressure to confirm everything's fine. Don't take it lightly for safety's sake; just have a mechanic take a quick look.
