What does TPMS mean in cars?

2 Answers
JaceRose
08/31/25 2:17am
TPMS in cars stands for Tire Pressure Monitoring System. Below is an introduction to the Tire Pressure Monitoring System: Introduction to the Tire Pressure Monitoring System: TPMS stands for Tire Pressure Monitoring System. The function of TPMS is to automatically monitor the tire pressure in real-time while the car is in motion and to alert the driver in case of tire leaks or low pressure, ensuring driving safety. Working principle of the Tire Pressure Monitoring System: Indirect TPMS actually relies on calculating the rolling radius of the tires to monitor pressure. When the pressure in a tire decreases, the rolling radius of that tire becomes smaller, causing it to rotate faster than the other wheels. By comparing the differences in rotation speeds between the tires, the system monitors the tire pressure.
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McBrody
09/12/25 5:52am
Last time on a long trip, a sudden yellow light on the dashboard gave me a scare. After checking the manual, I realized it was the TPMS alert. This thing is called the Tire Pressure Monitoring System in Chinese, like having electronic sentinels for your tires. It uses sensors inside the wheels to monitor tire pressure changes. Once it detects low or abnormal pressure in any tire, it immediately flashes a warning light on the dashboard. My old car didn’t have this feature, and I’ve had multiple instances where I only noticed a flat tire after it was completely deflated. Now, driving feels much safer. Especially during rainy or snowy highway conditions, unstable tire pressure can easily cause skidding—this system really puts my mind at ease, adding an extra layer of security while driving.
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