Yes, you should've (should "of"?) mentioned all relevant info.
I think you need to tell us what make and model car it is for a start.
"Red light" - Ignition light? flashing. That is not normal and may be some kind of make/model-specific fault indication. I think you need to tell us what make and model car it is.
You could get the engine computer codes read. That, the make model and the fact that there a relights flashing may give some info to start looking around on the web.
You could do worse than find a dedicated forum dealing with your make/model of car (which you should've (not should of) told us up front). Doubly so if its a car beloved of enthusiasts: Golf, Astra, Corsa, etc..
afaAFS
July 2018