Adaptive Cruise Am I Blind? Can’t find

[BradnChristine]

aha. follow distance 4 / max is not something I use very often. since you're on max follow distance if you approach another vehicle with a slow rate of closure it might very gradually back off the speed and not trigger any kind of braking. I can't see that this would really matter to someone following you if it's shaving off a few mph over 5-10 seconds, similar to coasting in a non-hybrid vehicle. They will have to brake or adjust cruise (assuming it isn't ACC), or coast if not using cruise at all.

But I would think if the 15-20 mph speed decrease happens within a few seconds that should be enough to require regenerative braking at the least and it'll trigger brake lights. Still worth testing to see if you can duplicate the issue, and then having the dealer look at it.

There is a brake light TSB, but it is the opposite of this type of issue - lights coming on when there was no braking. That's here: https://www.mavericktruckclub.com/f...stay-on-brake-light-illumination-issue.21366/

You may have the answer. Driving on these mostly empty WY/SD interstates is substantially different than when I drove for work on I-5 and I-10 in CA. Driving with more than 3/4 of a car length behind the car in front of you would still allow idiots to push into that spot. I'd have to set it at the shortest possible distance. Sure don't miss those days.

But that 4/max will generally always be the setting here with our minimal traffic, and thus not alert folks to slowing. I have never tried CC, let alone ACC on city streets which would take me to a stop, but that may be the way to test to ensure ACC turns on the lights.

I will try some max regeneration to see if that turns on the lights as well, or if I need to see the dealer.

My old 2002 Foretravel had a transmission retarder and whenever it was engaged at any level, the brake lights would be on. That was an annoyance of the reverse kind as going downhill I would generally have the control lever at the 1st or 2nd level to maintain speed...not slow...and I always wondered if the folks behind me thought I was dragging my brakes.

But for my driving on these midwest roads, I know I cannot count on ACC to trigger the lights and have that flash of red trigger the driver coming up on me.

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[17 wheels Black fx4]

Update: call from dealer.
My original email request order had the correct request for setting up 360tm but sales order deleted it by error.

I had a chance to double check the total order but missed the salesman error.

Love the salesman from past business but damn my lack of double checking the final order.

I may be selling my 2023

 

[realshelby]

"Brake lights still come on when using regenerative braking". Of course they do, you are pushing on the brake pedal! But ACC does not apply the brakes....

Never had the brake lights come on when using ACC on any of my vehicles that I ever noticed (would be obvious at night...). They WOULD come on if the vehicle sensed an impending collision, but that is your collision avoidance system doing its job.

ACC simply rolls out of the throttle as you near a slower car. JUST LIKE ANYONE WOULD DO WITH NO CRUISE ACTIVATED! If you see the car is slower before you are in the "zone" you select for ACC to activate, simply move to another lane. Exactly like you would do with no cruise activated.

ACC is nice because you can run cruise without having to reset it often due to pockets of traffic. In that case I don't even use regular cruise control.

 

[BradnChristine]

Maybe some actual testing is warranted.

Great (but lengthy) discussion of the issues. There sure seemed to be a lot of Maverick read-end collisions noted early on. Makes me wonder if this wasn't contributory.

 

[colinl]

Maybe some actual testing is warranted.

that video is about one-pedal braking which the Maverick does not offer. (although some folks on MTC hlike to use L mode on the shift knob to force it to use a lot of regenerative braking all the time.)

still, yes, that's damn scary what is happening in that video.

"Brake lights still come on when using regenerative braking". Of course they do, you are pushing on the brake pedal! But ACC does not apply the brakes....

Never had the brake lights come on when using ACC on any of my vehicles that I ever noticed (would be obvious at night...). They WOULD come on if the vehicle sensed an impending collision, but that is your collision avoidance system doing its job.

ACC simply rolls out of the throttle as you near a slower car. JUST LIKE ANYONE WOULD DO WITH NO CRUISE ACTIVATED! If you see the car is slower before you are in the "zone" you select for ACC to activate, simply move to another lane. Exactly like you would do with no cruise activated.

ACC is nice because you can run cruise without having to reset it often due to pockets of traffic. In that case I don't even use regular cruise control.

A lot to unpack there.

First of all, given that you're a hybrid owner and I'm not, I would have thought you understood regenerative braking as implemented in a Maverick. While a Maverick does not have 1 pedal mode, it still most definitely can use regenerative braking at any time when you remove your foot from the accelerator. How much regenerative braking it uses depends on the drive mode you're in, speed, and battery charge state. You do not need to press the brake pedal. When regenerative braking engages, the brake lights will come on.

In a hybrid if you do press the brake pedal, it uses regenerative braking first and adds brake calipers as needed. And you have brake lights.

ACC, of course, uses brake calipers any time that coasting and regenerative braking isn't enough. This should be very noticeable when someone cuts you off and they're going slower than you. It'll brake plenty hard when it realizes it needs to decrease the rate of closure.

However, if someone cuts you off and they're actually going faster than you, the system might not brake much or at all especially in follow distance 1 / minimum.

 

[realshelby]

Better look up "Coast Down" as it applies to Ford Hybrids.......
and brush up on collision avoidance.
Being a past hybrid owner helps.
Then there is self driving vs Adaptive Cruise Control.
And of course levels 1 through 5 of Autonomous Driving to consider.
Get into that and you will find the vehicle self applies both regenerative braking and mechanical braking.
This thread was about coming up behind a slower car. Not self driving.

 

[BradnChristine]

You do not need to press the brake pedal. When regenerative braking engages, the brake lights will come on.

That is very similar to my Foretravel with Transmission retarder. The very moment I touched the fuel feed, the transmission retarder (at 6th position, full application) would release, brake lights out, vehicle would roll forward...and the instant I removed my foot from the fuel feed, BAM. Full stop with lights. VERY useful in stop and go bumper-to-bumper traffic (think I-205 in Portland in the afternoon).

Now I will have to take my C-Max out (No ACC, but a lot of regenerative braking available) as well as the Maverick. I need to know when those brake lights come on. I do enough looking in the rearview mirror, worrying about whether someone is going to stop or hit me...I'll feel the need to do more if the lights don't come on as quickly as I HAD expected.

 

[jsus]

But ACC does not apply the brakes....

Of course ACC uses the brakes, hybrid or not. Only difference with a hybrid is that it uses regen braking where possible, just like when you lift off the gas pedal or depress the brake pedal.

Please reference your owner's manual where it explicitly says the opposite of your claim.

The system applies the brakes to slow down your vehicle to maintain a safe gap distance from the vehicle in front of you. The system only applies limited braking. You can override the system by applying the brakes.
Note: The brakes may emit noise when applied by the system.
If the system determines that its maximum braking level is not sufficient, an audible warning sounds, a message appears in the instrument cluster display and an indicator flashes when the system continues to brake. Immediately apply the brakes manually.

https://www.fordservicecontent.com/...ingEnabled=False&userMarket=USA&buildtype=web

The system may apply the brakes to slow the vehicle to the new set speed. The set speed continuously displays in the information display when the system is active.

https://www.fordservicecontent.com/...ingEnabled=False&userMarket=USA&buildtype=web

Adaptive Cruise Control (If Equipped) - Adaptive Cruise Control Limitations
ADAPTIVE CRUISE CONTROL LIMITATIONS

Sensor Limitations

WARNING: On rare occasions, detection issues can occur due to the road infrastructures, for example bridges, tunnels and safety barriers. In these cases, the system may brake late or unexpectedly. At all times, you are responsible for controlling your vehicle, supervising the system and intervening, if required.

https://www.fordservicecontent.com/...ingEnabled=False&userMarket=USA&buildtype=web

HOW DOES ADAPTIVE CRUISE CONTROL WITH STOP AND GO WORK

Adaptive cruise control with stop and go uses radar and camera sensors to maintain a set gap between your vehicle and the vehicle in front of you while following it to a complete stop. Stop and go can also be set to follow a vehicle directly in front of you and adjust the set speed, while you are at a complete stop.

https://www.fordservicecontent.com/...ingEnabled=False&userMarket=USA&buildtype=web

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