I just purchased another set of wheels from a guy that had a car identical to mine. 2018 SS 1LE. My plan was to do the winter / summer swap and use the EL-50448 tool (assuming 433 MHz). Before ordering, I scanned my Service Parts Identification Label Barcode on the pillar. It did not seem to produce what I would consider a full complement of codes. The list seemed a bit short and did not have any of the specifiers imbedded for the TPMS frequency. I was expecting to find the XL8 but didn't find any at all with an "XL" prefix. I've tried searching and have read a number of posts but don't seem to be able to find the definitive answer. I would just like to see it documented that i am 433 MHz for sure. As a byproduct, I would like to figure out this label issue. Any ideas?
