I own a 2007 LR3 HSE and recently received an alert my spare tire pressure was low. Sure enough I checked the tire, and it was flat. With the tire filled and reinstalled I'm still receiving the low spare warning even after driving around for weeks. The TPMS settings show a sensor associated with the spare tire yet when I open the spare tire there is no TPMS sensor in the tire. So that brings me to several questions:

1) If there is no TPMS sensor in the spare, why does the computer show a sensor ID associated with it?
2) How do I remove the warning? Is it as simple as deleting the sensor ID? But this leads me to ask how did a sensor ID get associated with the spare?
3) If I add a sensor to the spare (donut), how would it be read, I searched all around the spare and there is no reader. is it close enough to the rear tire readers to be read that way?

Thanks!

Ron
(confused in the desert sun)