When Ford places the sensors on your Mustang's wheels at the factory, they are scanned and registered (assigned) to a specific wheel. This allows your technician to determine exactly where there is a problem. The sensors measure air pressure ONLY, so there is no need to register your sensors again if you buy larger rims. However, when having new wheels and tires mounted and balanced by a non-Ford Dealer, it is important that your tire technician put your sensors in the same location on the car.
For example, the sensor that was assigned to the Front Right Wheel will need to go on the new rim going in that location. If this is not done, you will need to re-register the sensors so that if there is a problem with the TPMS system, it can be properly diagnosed.
When it comes to you replacing your rims, you have three options for your TPMS:
1. Buy new bands and sensors from a Ford Dealer
Changing the rims on a 2007 Mustang means that you have to change the band and bracket to one that will accommodate the size of your new wheel. Ford offers size-specific bands for larger wheels, and you have to go to your local Ford Dealer to get a complete OEM kit (bands, brackets and sensors), and have your wheels/tires mounted and balanced.
Note: If you choose this option, but are buying wheels and tires from us, you will need to select "No, Do Not Mount My Tires or Balance My Wheels" when placing your order.
2. Buy the Universal Band from us and use your existing sensors
If you increase the size of your rim, you will need to purchase new bands/brackets to accommodate the size difference. However, you DO NOT need to buy new sensors! You simply reuse the sensors that are already on the wheels. The sensor measures only the inflation pressure, so you don't have to change them out or register them for the larger wheel. You also do not have to go to a Ford Dealer to have your rims and tires mounted and balanced! The Universal Bands give you the freedom to choose the shop you want to go to.
Note: AmericanMuscle.com cannot mount and balance wheels and tires purchased from us if you plan to use your existing sensors. When ordering, you will need to select "No, Do Not Mount My Tires or Balance My Wheels." We will ship them to you and you can take them to ANY SHOP to have the sensors transferred over.
3. Do Not use the TPMS sensor
There are a couple of benefits to this option:
- You do not have to spend additional money to have your wheels mounted and balanced by a shop or Ford Dealer.
- You do not need to spend the extra money on bands/brackets.
- You can have your wheels and tires mounted and balanced for free by AmericanMuscle.com.
The downside to choosing this option is the Tire Pressure Warning Lamp will remain constantly lit in your gauge panel. You will have to check your tires more frequently to make sure that they are maintaining the recommended pressure.