So I'm searching for new shoes for the Acadia. Discount Tire has been good to us in the past; so I searched and found some tires. Anyway to make a long story short; as an option they will "rebuild" all my TPMS sensors for an extra $23. I honestly don't think it needs this service; although I am considering having it done. The cost is minimal; I am wondering if anyone else has had this done. My Acadia has 31K on the odometer and I haven't had any sensor issues.