[Gran Turismo]

According to my manual, missing or defective wheel sensors would make the tires appear permanently in grey color in the display, so I don't think an easy retrofit with new sensors is possible. Also some posts in this thread would suggest that at least on US models, only the tire color codes are displayed.

[radarguy]

Originally Posted by Gran Turismo

According to my manual, missing or defective wheel sensors would make the tires appear permanently in grey color in the display, so I don't think an easy retrofit with new sensors is possible. Also some posts in this thread would suggest that at least on US models, only the tire color codes are displayed.

Yes only the color codes are available in the U.S. and TPMS is standard on all cars. Mine read all yellow even though the pressure is OK and I reset the TPMS. I suppose it's broken. What you show, temperature and pressure, is ideal.