Hi, I just replaced my front tires at 29k, rears are still fine and both are the 18in summer version. The fronts were actually fine in the center, but both the inner/outer areas were worn, which indicates to me that the tires were underinflated. The pressure signal never came on while I've had the car and I understand the system is designed to indicate faults, turn on the maintenance light, and not indicate which tire it is to force users to double check all tires while you're at it.
Now, with that said, wondering if anyone has had this problem? I saw a TSIB for the tire pressure sensor, but not sure if it's related.
Let me know your thoughts.