How to Replace the Battery in a Tire Pressure Monitor?
2 Answers
Tire pressure monitoring system is a type of active safety device that can promptly alert the driver when there are dangerous signs in the tires, prompting them to take appropriate measures, thereby preventing serious accidents. The steps to replace the battery in a tire pressure monitor are as follows: 1. Use a wrench to unscrew the external sensor. 2. Remove the anti-theft washer upwards. 3. Insert the sensor into the disc-shaped opener (turn clockwise at the bottom, counterclockwise at the top) to unscrew the casing. If it feels too tight, you can wrap the disc-shaped opener with a cloth before twisting it open. 4. Install a new battery. 5. Screw the casing back on and reattach the anti-theft washer. 6. Reinstall the sensor onto the valve stem.
As a seasoned driver, I've got plenty of experience replacing TPMS batteries. First, check if your tire pressure sensor is removable - some sealed designs require full replacement. For removable types, they're usually located on the inner side of the wheel hub, meaning you'll need to remove the tire. Use specialized tools to carefully pry open the sensor cover, being cautious not to break the clips. Most batteries are CR1632 or CR2450 models - double-check the original battery label before purchasing. When installing the new battery, ensure correct polarity and avoid touching the metal contacts directly. After installation, remember to perform sensor matching - some vehicles require relearning the tire pressure positions. If you encounter difficulties, visit an auto repair shop where they have professional equipment; labor typically costs just a few dozen RMB. A battery replacement lasts 2-3 years and is much cheaper than replacing the entire sensor.
