What are the reasons why the car tire pressure monitoring does not display?
3 Answers
There are several reasons why the car tire pressure monitoring does not display: 1. The battery of the module is exhausted, and generally, the entire tire pressure detection module needs to be replaced. 2. There is something blocking the module's inspection port, preventing the module from performing detection. 3. Pairing failure, requiring re-pairing. Some car models can complete this on their own, but most models require professional pairing at a 4S shop. 4. The module is already damaged and can only be replaced with a new one. 5. If the tire pressure of one tire is not displayed, first determine whether the tire pressure sensor of that wheel is installed correctly. Remove the tire and reinstall it, then try again. If it still does not display, you can swap the normal sensor to this wheel. If it still does not display, it indicates a fault with the tire pressure display module. If it displays normally, it means the sensor is damaged.
I've been driving for over a decade and have encountered quite a few situations where the tire pressure monitoring system doesn't display. The most common issue is when the built-in sensor batteries run out—these little things usually need replacement after five or six years. Last time, after getting a nail puncture repaired, the display disappeared; turns out the mechanic accidentally damaged the sensor during installation. Another time, after heavy rain, the system malfunctioned, and we found the signal receiver module had short-circuited due to water ingress. If you've just had your tires changed, it's possible the technician forgot to reset the system. Also, a weak car battery or poor contact can affect the readings. My suggestion is to first try restarting the vehicle to see if any fault codes appear on the screen. If you still can't figure it out, it's best to visit a professional shop where they can use equipment to check the signal status of each wheel's sensor—much better than guessing blindly.
As an owner who enjoys road trips, I've specifically researched issues with tire pressure monitoring system (TPMS) failures. Sensor damage is the most common scenario, such as being hit by tools during tire changes or corroded by aggressive car wash chemicals. Once I discovered it was caused by air leakage from aged metal valve stems on the wheel rim that disrupted the signal. If the display doesn't work right after picking up a new car, it might be because the system wasn't activated during factory setup. Signal interference is also annoying, like when parked near high-voltage power lines or after installing highly shielding explosion-proof film. I always check dashboard settings too, as sometimes the display function gets accidentally turned off. For prolonged display failures, consider whether the vehicle's computer module might be faulty - that's more complicated to repair.
