Yep on the TPMS. When you start up look for a yellow ! and a image of a tire cut-away. Lower right of left guage cluster. If you have an issue it will stay on or blink. No issue and it goes away in a couple of seconds.
If you will buy an aftermarket spoiler, even those expensive ones, ask about the third brake light how it is positioned, because most aftermarket spoilers has the light facing downward..The correct part number for a 2003 -2004 Runner is R422L. While the other 4th gen spoiler has "hump" and its for 2005 up, although you can still install it in a 2004. My spoiler matched perfectly with the paint. coz it came painted already and with LED light.