What to Do with Tire Pressure Monitoring After Changing Tires?
3 Answers
After changing tires, the tire pressure monitoring system needs to be reset. The reset method is as follows: 1. Power on the vehicle; 2. Simultaneously press the lock and unlock buttons on the remote control; 3. Unscrew the tire valve cap and continuously release air until you hear the car horn stop releasing air; 4. After the tire pressure is reset, inflate the tires in sequence. The working principle of the tire pressure monitoring system is: Sensors installed on the tires monitor the tire pressure and temperature in real time, transmit the data wirelessly to a receiver, and display the data changes on a display to alert the driver. It will sound an alarm when the tire leaks or the pressure changes exceed safe limits. The functions of the tire pressure monitoring system are: 1. Prevent accidents; 2. Extend the service life of tires; 3. Reduce wear and tear on vehicle components.
I used to worry about the tire pressure monitoring issue when changing tires too. If you're replacing tires with new ones of the same size and keeping the original rims, the tire pressure sensors actually remain in their original positions, and the system will automatically recognize them after driving a few kilometers. However, if you change the rims as well, the sensors need special handling: experienced shops will remove the original sensors and install them on the new rims, or you can directly purchase new rims with sensors. The most troublesome situation is when switching to non-OEM specification tires, which may require resetting the tire pressure system. Remember to ask the mechanic to perform sensor matching after tire replacement, as roadside shops often forget this step, causing the dashboard to display a fault light. After changing tires, drive 300-500 meters and observe the tire pressure display. If there's no data, return to the shop promptly for debugging.
It's quite common for the tire pressure monitoring system to malfunction after a tire change. From personal experience, here are the key solutions: First, confirm whether the sensor was damaged during removal - last year when I changed tires, an apprentice mechanic cracked my sensor while prying it. Second, check if the new tire affects wheel speed signals - once I installed tires with a different aspect ratio, causing ABS signal interference that disabled the TPMS. The simplest solution is to transfer the original sensors to the new wheels. Aftermarket sensors require reprogramming. Many modern vehicles support manual reset - the user manual specifies the procedure: typically holding the TPMS button after ignition until the hazard lights flash. Don't overlook the spare tire - driving at highway speeds with a full-size spare that lacks a sensor may trigger false alarms.
