I've seen them before. I like it, easy for driver to check the feature of fluid levels and tire air pressure on the dash when the warning light(s) come on. GM vehicles have the display of the tire air pressure on 4 corners. Cool. However the tire air pressure on the display, shown PSI that are not exact match to the actual tire air pressure (outside), about 2 psi different. If you see 37psi on LF tire on the display, you measure the same LF tire with tire pressure gauge, the reading is 35psi. Sound ok to me. I am not much to TPMS works, still learn.
