Thanks. I will look that up. The cruise control module was replaced early on by another ford dealership not to long after the original owner had special ordered and received the truck. My truck is a 2015 Lariat and I got it in 2016. The original owner did not care for the new technology. Just like me, you can read all you want but until you have it and use it everyday you will never truly know anything about it. Some are bias when talking about the new technology but I can say I now have first hand real world experience with it.

 

It's pretty simple really. It's not hitting the brakes, therefore no need for brake lights. It's just coasting as others mentioned. If the adaptive cruise determines it needs to hit the brakes to slow you down, it will fire up the brake lights.

I've got an F350 with the exhaust brake that slows you down considerably without touching the brakes. No brake lights unless brakes are applied. Period.

 

I'm just trying to figure out why you're using cruise control in traffic.

 

I live in Florida and cruise control is useless here because of 24/7 heavy traffic on all highways. I used the cruise maybe once.
I have no idea WTF adaptive cruise control is. I am having a hard time understanding why someone would think the brake lights should be on when using the cruise to coast.

 

Adaptive cruise control uses sensors to maintain a constant distance from the vehicle in front of you. It may very well apply the brakes.

 

I like the exhaust brake on the F series diesel... it works just like my trucks with manual transmissions. You let off the pedal, you slow down.

 

I would love to have the capabilities of an exhaust brake but do not want the added expense of maintaining the Diesel engine.

 

While I think the brake lights should activate any time the brakes are applied, I would not like to trust the adaptive cruise in heavy traffic. I know we're headed to that place, where the vehicles drive US, but I don't think we're there yet.


I can remember though, my first car with air-conditioning, then with cruise control, reliable power windows, power mirrors, now with automatic headlights and so on. At the time, they all seemed a luxury, but now I wouldn't have a vehicle without them.


- Jack

 

Creature comforts are nice. We deserve to indulge in those comforts now as we get older because we grew up like you said doing it the manual way without AC and electronic technology. Yes I love the ability to take a 900 mile trip and let my gps navigation talk tome and tell me when I half to make a turn. Much easier than opening a 2 foot by 3 foot paper map in the front seat while driving.

 

You gotta be careful with a GPS. They have been known to take you onto impassible unpaved roads or the wrong way on a 1 way street.

 

It does apply the brakes with zero input from the driver. Have experienced this first hand in my 2015 F150 Lariat Supercrew 5.0 V8 6 speed auto transmission 4x4.

 

Been there, done that.

 

Yes it does apply the brakes if necessary (it will lock up your seatbelt too) and the brake lights come on if it applies the brakes.

Yes, brake lights DO come on any time the brakes are applied.

Yep, and the brake lights come on when that happens.