2011 Buick Regal TPMS Sensor Help Needed

[tourde34]

Is the sensor in my 2011 Regal 1 piece or 2 piece? I think of them is leaking air but need to have a tire shop confirm this. If it is so, do I have to replace the whole sensor or can parts of it be replaced?

[TPMS Guru]

Your car uses the Schrader snap in rubber valve stem, so yes, you can just replace the valve stem component.