Only the Fairmont Ghia had cruise control standard at the time - but it was always optional. I am not sure if there is a provision for a cruise control warning light on the GL/S/Fairmont instrument cluster, but I'd certainly hope so.
Jack Travis, E-Series Acting President
1989 Ford Fairmont Ghia turbo/GL replica (underway)
1994 Eunos 800M
1990 Ford Laser S