Car wont start, battery charged, screen says,,system shut down to save battery. How do I reset ignition system
System detected a low charge in the battery. Put the battery on a charger or start the car so alternator can do it. This is one oh those ridiculous systems that are supposed to "help." This happens often when you let the car sit for a few days unrun. Systems in the car run when engine is off and use electricity; this can be hard on an older battery. Have battery and charging system checked.
On my 2014 MKX I had to reset the electronic system by placing the fob in a slot in the lower compartment of the console. The car would not recognize the fob so placing it in this slot fixed the problem. The 2017 slot could also be in the glove box.