I recently had a flat tire on my Hummed H3. The service station that just happen to be right across the street removed the flat for me. They then put my spare tire on and when driving back home the tpm came on .. My question is does the original spare that came with my 2007 Hummed H3 have a sensor in it?
Thanks for any help you can forward my way..
Zippitydoda52

 

Nope! If you look at the valve stem it will be rubber not metal like the TPM on the rest of your rims.

They (GM) stopped putting 5 on every H3 back in 06. The TPMS can only read 4 at a time anyway.