Easiest way to disable it is to remove the wire from pin 2 (red) and put it in pin 6 (blue). This will completely disable it and you will no longer have the light illuminate on the instrument cluster. This will not affect the HomeLink in any way so you don't lose that functionality.
To get at the TPMS/HomeLink connector, just remove the dome light and you can see the wires going into it. Remove the connector, use a pick or other fine tipped tool and depress the top of pin 2 so it will slide out. Push the pin back into the connector in the 6th position and reinstall the connector. Reinstall the dome light and you are finished.