how do i convert the digital dash?

[Red]

AFAIK the digital panel was never delivered to the US (mph) market for the AE8x.

With other cars that have had digital dashes in the US, there is always a switch or button that can be pressed to toggle the display mode from kph to mph, often the same button that switches other display modes/settings.

"tureno" probably comes from some illiterate trying to be cool, since in the US there never was a Trueno it was always, and only, a Corolla which simply was never cool, it was a low-end econocar. And in the US market, in 1985 "GTS" meant a Celcia GTS, not a Corolla. Even at the dealers. The illiterates probably were confusing something they'd overheard about a Ford TORINO, which was a real car here. (Named for the city in Italy, yes.)