What are the reasons why all 4 tire pressure monitors are not displaying?
2 Answers
4 tire pressure monitors are not displaying due to the following reasons: 1. The battery of the detection module is dead; 2. Something is blocking the detection; 3. Pairing with the car failed; 4. The tire pressure monitoring module of the car is damaged. Solutions: 1. Replace the detection module with a new one; 2. Clean the detection module; 3. Re-pair the module, some vehicles require professional pairing at a 4S shop; 4. Replace the detection tire with a new one. The functions of monitoring tire pressure include: 1. Preventing car accidents; 2. Extending the lifespan of the tires by ensuring they operate under normal pressure and temperature; 3. Reducing wear on the car's suspension and improving its service life.
I've encountered this issue several times and figured out some tricks. When none of the four tire pressure monitors display readings, the most common cause is a system-wide failure. For example, a blown fuse—the fuse box inside the car is usually located in the engine compartment or under the steering wheel, making it easy to check. Another possibility is a faulty signal-receiving module; that little box controls all sensor data, and if it fails, the whole system shuts down. Sensor battery depletion rarely happens simultaneously unless they're all from the same old batch. Low vehicle battery voltage can also cause the system to malfunction—try waiting longer for charging before starting the car. Safety-wise, driving without tire pressure monitoring significantly increases the risk of a blowout, so it's best to avoid highways and get a diagnostic check at a repair shop first. Make it a habit to manually check tire pressure regularly to avoid sudden surprises.
