Will the Tire Pressure Alarm Go Off After Changing Tires?
3 Answers
Will the tire pressure alarm go off after changing tires? Yes, after changing tires, the tire pressure monitoring system needs to be reset. The method to reset the tire pressure monitoring system is as follows: 1. Press the square icon button on the left side of the steering wheel; 2. Switch to the tire pressure detection screen; 3. Hold down the triangular icon button to clear and reset. 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 hazards of excessive tire pressure include: 1. Reduced friction and adhesion of the tires, affecting braking performance; 2. Causing steering wheel shaking and deviation, reducing driving comfort; 3. Accelerating localized wear on the central tread pattern, leading to tire bulging and stone trapping; 4. Causing excessive stretching and deformation of the tire cords, reducing the elasticity of the tire body, increasing the load on the vehicle while driving, and decreasing puncture resistance.
Last time I changed to winter tires, I encountered this situation! After driving a few hundred meters, a yellow light suddenly popped up on the dashboard, which gave me a scare. Upon careful checking, I realized that most cars nowadays come with a built-in tire pressure monitoring system. If the new tire pressure isn't set accurately during tire replacement, the sensor will immediately trigger an alarm. That time, the mechanic at the repair shop set the tire pressure to 2.0, while my car's standard is 2.5—a difference of 0.5 was enough to set off the alarm. If the sensor on the valve stem gets damaged during tire removal or installation, or if the pressure values of the four tires differ too much, the electronic system will consider it abnormal. Now I’ve learned my lesson: after changing tires, I first ask the mechanic to check the pressure of all four wheels with a gauge, then reset the system using the steering wheel buttons. Only then can I drive with peace of mind.
As an experienced driver, I've encountered similar situations many times. To be honest, changing tires itself doesn't trigger the alarm; the key lies in the follow-up operations. For example, vehicles with indirect monitoring systems require at least 20 minutes of driving after tire replacement for the system to relearn. Cars equipped with tire pressure sensors are most vulnerable to valve stem damage during tire changes. Last month, my neighbor's car immediately alarmed after a tire change—it turned out the tire changer had scratched the sensor's metal cap. Nowadays, repair shops follow standard procedures: inspect sensor appearance post-replacement, use diagnostic tools for data matching, and perform dynamic calibration. What car owners can do is ensure tire pressure deviation doesn't exceed 0.3 bar, with cold tire measurements being most accurate.
