Why does the tire pressure monitoring light remain on after a tire repair?
2 Answers
The reason the tire pressure monitoring light remains on after a tire repair is that the tire pressure has not been reset. The tire pressure light does not automatically turn off after the tire is repaired; a tire pressure reset is still required. The method for resetting the tire pressure is as follows: First, turn on the ignition switch, then press and hold the tire pressure monitoring reset button until you hear a "beep" sound before releasing it. The tire pressure monitoring system will then store the current normal tire pressure data, automatically clear the previous data, and finally, the warning light on the dashboard will turn off, completing the tire pressure reset. Precautions for tire inflation are as follows: Always use a pressure gauge to check the pressure to avoid overinflation, which could cause the tire to burst. After stopping the vehicle, wait for the tires to cool down before inflating, as the tire temperature rises during driving, affecting the pressure. Check the valve stem. If the valve stem and valve core do not fit smoothly, or if there are protrusions, depressions, or other defects, it may be inconvenient to inflate or measure the pressure.
Hey, as a car enthusiast, I've encountered similar situations many times. There are quite a few reasons why the tire pressure monitoring light stays on after a tire repair. First, the system might not have updated the data promptly. Many vehicles require you to drive for a few minutes to let the computer auto-calibrate, or manually press the reset button to reset it. Second, it's easy to accidentally bump the sensor during tire repair—if it gets loosened or damaged, the system might falsely report a fault. Also, the tire pressure might not have been adjusted to the standard value; if the air pump used during the repair isn't precise enough, it could result in pressure being too high or too low. Don’t forget to check all the tires—another one might be leaking without you noticing. If the light remains on after trying all these, you should visit a professional shop to diagnose whether the system itself has an issue. Driving safety is crucial, so don’t ignore it.
