I have a 2018 Ford Escape and it started out as an issue with the car stalling for no reason and taking about 30 minutes to be able to restart the vehicle. I took it to my local mechanic and the code that PO6E4 BCM Wake up Signal. Now the car won't start at all and the headlights on low beam won't come on and the rear right lights are not working when you click the unlock on the key fob. Is this most likely a bad BCM?

 

That is how we get in trouble.
You could be correct , and there are procedures to perform before condemning parts especially something like a BCM which needs to be programmed to the individual vehicle.