OK here is all the information I have. It's not low on brake fluid. I just had to change my thermostat becasue it was bad casuing a check engine
light which said it was overheating. I also had to change the alternator.
So last night I got it out on the highway for a good drive(went to play hockey) this is what it did on the way home.... When I would hit 65mph or 2000 rpms(w o/d on) the seat belt light and brake light would flash on the dashboard sometimes a couple times sometimes stay on for a couple seconds. When I turned o/d of the lights stopped... I tried speeding up to 65 a few times(with o/d on) and after about 20 miles into the drive it stopped flashing. I was only on the highway for a few more miles, so I don't know if it has stopped for good.
I was wondering is there maybe something that needs to reset from the check engine light maybe a warning flash so I don't drive it to hard after the over heating warning??? I just don't get it, I hope somebody knows something!!