key fob

I’ve tried searching the forum for what’s happening but can’t seem to find a thread so forgive me if this has already been asked. Took the wife and her cousins on a long drive through the pnw yesterday and went to start the bronco after stopping at a beach and got the no key detected warning...

Title kinda says it all. I'm able to remote start my vehicle with the App and using one of the two key fob's. I hit unlock and then remote start twice and it flashes red but nothing happens. My thought is that this key is not authorized but i'm not sure how to let the system know that.