Bionic Man wrote:
The 2020 RAM owners manual is here.
The towing section looks to start at 318. The exhaust brake section is on 230.
I don't see anything that talks about applying brakes when the EB is on, nor applying the brake lights. But I didn't read the whole thing.
I think the idea of all the electronics is to make the trucks simple to operate. Just put it in drive, push the auto EB button and go. The danger of explaining things in the owner's manual is that, unless things are explained to great length, it might confuse more people than it helps. Some would read that the auto button will apply wheel brakes on the down hill grade and think using auto could overheat their brakes. Auto is designed to be used not avoided.
Edit: I looked in my Ford owners manual and like the Ram manual, it says nothing about the Auto EB mode controlling the brake lights or wheel brakes.