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.
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.
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.