TPMS came on unexpectedly.

[stigeye]

If you have the display that shows the car with 4 wheels and the tyre pressures then whilst on that screen press the button on the end of the stalk that has the menu button on it. After pressing the end button for a few seconds a message will pop up asking if you want to relearn, or words to that effect. You would then select yes with the scroll on the same stalk and press the end button and the horn will beep twice. This is when you would take your reset tool around each tyre (starting at front passenger and making your way around the car clockwise) the horn will beep after each tyre sensor has been reset with the tool. The horn will beep again to say the procedure has been completed.