1. New TPMS sensors installed, letting air out or adding air in to the tire couldn’t make the system recognize new sensors.
2. Do tire rotation, didn’t have a quick and easy way to let ECU relearn new tire information.
3. When tire pressure indicator light ON, after the maintenance performed, the tire pressure needs to be reset to turn off the TPMS light.
4. Low tire pressure or leakage /replacement or installation of tire pressure monitoring equipment / tire replacement, sensor damage, etc. After those problems solved, TPMS needs to be reset.
5. Exchanging the winter tires or Summer tires.

Q: Press button of this device, the indicator light of this device flick.However, I does not heard any response. TPMS relearn not successful.
A: Following our correct step operation. (See our product photo showing.) Enter car TPMS relearn mode first, and operation this device. It could not directly operation.
Install a set of tire sensors (marked 'Programmed' on shell) replace old ones. 90% of situation of our clients encounter this situation by this reason. Some new tire sensors,lack of TPMS information.