2017 Ford exhaust brake and cruise control
I've been observing how my truck behaves hooked up to a heavy trailer and going down hills. With CC engaged the computer applies the wheel brakes to maintain the set speed. When using the exhaust ...
Forum Discussion
brulaz wrote:4x4ord wrote:
...
When you bet "Ford" is not aware that it's an issue; who is "Ford"?
Whoever wrote the cruise control software must know that the brakes come on to hold the speed set point. Maybe on a long grade the brakes will release and the cruise will kick off rather than having the brakes maintain the speed till the brake fluid boils and the rotors warp.
Suspect that the Adaptive Cruise is an off-the-shelf product that they slapped on without considering the downhill trailer towing implications. This can't be a deliberate design choice (I hope!). And since the AC is only an option on the highest trim levels, I doubt that many people have encountered and reported this issue.
But no idea how to go about getting the info up to the person at Ford who can do something about it.
Adaptive cruise is available on the Lariat, King Ranch, Platinum and Limited trim levels.
Since AC is designed to stay a distance you set from the vehicle in front of you, how else would it slow the vehicle if not the brakes? If you have the exhaust brake on, it works with it. Since it is designed to slow the vehicle immediately when it detects you are to close, the exhaust brake will not slow it that fast, it has to brake. If you don't have the exhaust brake on, what else can it use but the brakes to slow you.
