X3. I think your TPMS just saved you from having to buy a new tire! I had a tire run flat in my car, I ran on it a few miles before I noticed it (I had a TPMS sensor in it but had not activated it)
. It had a discolored band around the outside where it had flexed. Took it to the repair shop, they dismounted the tire and confirmed there was no damage, I've run it 15,000 miles so far with no issues.