I brought our brand new Prius straight from the dealer to Town Fair Tire for a tire upgrade. When swapping the tires, they broke one of the tire pressure monitoring sensors. The tire shop worked to resolve the problem immediately. When they told me of the problem 30 minutes after starting the job, they had already ordered the part to be FedExed. They called back today, 6 days later to say the part has arrived. In the meantime I read where the owners manual said that new sensors must be registered with the car's ECU. Has anyone experienced a broken sensor yet? Do you think the tire shop will be able to replace and register the sensor or do I need to take it to the dealer? Am I better protected down the line (warranty) taking the car to a dealer to fix the tire shop's damage? I imagine that the Toyota warranty will not cover this. Any advice on getting the dealer to bill the shop directly or getting the shop to pay for the repairs at the dealer. The tire shop is in New Hampshire, 30 miles away. They have branches 10 miles away in Massachusetts. I hope this was one very stupid mistake and not the start of a trend. Thanks for any advice.