NHTSA Complaint #11505687 — 2015 FORD F-150

1-the Brake System Light has come on and brakes are extremely hard to press and use. I was having issues with the brake pedal slowly going to the floor while sitting at a stop. Today they will not go down at all and brakes are very difficult to press. very dangerous to drive and a safety issue. I see that my VIN does not show a recall for it, but there is recall #20S31 that relates. 2-The engine has an exhaust leak while driving and it smells as though the exhaust is getting into the cab of the truck. I was told the manifold is bent because of a design flaw in the manifold missing a bolt. been making this noise since the truck was rear-ended by semi truck.