What is the reason for the sudden failure of one tire pressure monitor?
3 Answers
The reasons for the sudden failure of one tire pressure monitor are: 1. The receiver inside the display has a problem, and the signal is interfered with; 2. The sensors of the other three tires are faulty. The functions of the tire pressure monitoring system are: 1. To prevent accidents; 2. To extend the service life of the tires; 3. To reduce wear on the suspension system. The tire pressure monitoring system automatically monitors the tire pressure in real-time while the car is moving and alerts the driver in case of tire leakage or low pressure to ensure driving safety. The working principle of the tire pressure monitoring system is: a built-in sensor is installed on the tire hub, which includes a bridge-type electronic pressure sensing device that converts the pressure signal into an electrical signal and transmits the signal via a wireless transmitter.
As a seasoned driver with over a decade of experience, I've encountered situations where the tire pressure monitoring for a single tire fails, mostly due to issues with that tire's sensor. The small battery inside the sensor typically lasts about five to seven years; once it's depleted, the sensor stops working. Alternatively, bumps and vibrations from driving can loosen the sensor, preventing it from sending signals. Additionally, improper handling by workers during tire repairs can damage the sensor's seal, leading to water ingress and short-circuiting the electronic components. Sudden failures might also result from interference with the vehicle's electronic systems, such as nearby high-voltage power lines or aftermarket GPS devices affecting the receiver's signal. Ignoring this issue directly impacts driving safety—uneven tire pressure increases the risk of blowouts or uneven tire wear and raises fuel consumption. It's advisable to manually check the tire pressure immediately to ensure all four tires are evenly inflated and to visit a professional repair shop as soon as possible for diagnosis and replacement. Don't wait for a minor issue to escalate. If replacing the sensor yourself, make sure to match the original manufacturer's model, and beginners should avoid tampering to prevent damage to the tire valve.
My buddy has been in auto repair for years and has seen individual tire pressure monitoring failures all too often. The most common culprit is the sensor's coin battery running dry—after all, they don’t last forever, and the batteries rarely hold up for a full decade. Carelessness during tire changes or repairs can also knock the sensor out of alignment or loosen its connections, cutting off the signal. Another possibility is internal moisture and rust in the sensor, especially if you frequently drive in rainy or wet conditions where humidity seeps in and corrodes the circuitry. Sudden issues might even stem from interference with other onboard electronics, like aftermarket low-quality audio systems emitting conflicting signals that jam the receiver. Don’t underestimate this—a single failed sensor means losing real-time pressure monitoring, which can lead to unbalanced handling or even loss of control at high speeds. The fix is straightforward: try resetting the system via the dashboard button first; if that fails, head to a shop for a wiring check and sensor replacement. Regular pressure checks during maintenance can extend sensor life, and if you’re handy, DIY battery swaps can save you a few hundred bucks.
