Details: She drove 20 minutes on the highway and noticed steam coming from under the hood, pulled over till it stopped steaming, opened the hood and put water in the reseviour, then tried to drive agian and the needle went up to Red and so she pulled over.
A month ago, the car started to overheat on me, the needle creaped up to H, but not quite there, I cranked the heat to full and it brought it to normal.... as soon as the engine was cool I filled up the rad with coolant.... it was low... I got home and next day put in more coolant.
Hope that helps.