Why does the TPMS light display “low pressure” days after I activated the sensors?

Problem description 1:

Sensors are properly mounted and have been successfully relearned to the vehicle. The TPMS light displays a few days later indicating “low pressure”. I activated the sensors and the tires read low pressure.

Solution:

Please double check the valve stems of all sensors to ensure there is no air leak.

Problem description 2:

Clamp-in sensors are properly mounted, but I have trouble dismounting the tires.

Solution:

The tire will leak if the washer is not securely mounted against the outer rim. Using the positioning pin, tighten the screw-nut. Do not over tighten.