Auto Resume vs. Stopped - why does one show up sometimes versus the other?

[PNGento]

With adaptive cruise and lane keeping/centering engaged and I find myself in stop and go traffic, sometimes when I get slowed to a stop, sometimes the message "stopped" will show and then I have to either press the gas pedal or the cruise "resume" button, and then sometimes the message "auto resume" displays and it does just that...resumes without any action on my part. The only time it seems that the auto resume shows up, is when I'm in stop and go for a longer period of time, but this doesn't seem to be consistent. I can be in stop-go for a significant time and auto resume sometime just doesn't show.

So, hoping someone can explain what determines how this all works...what sets one versus the other?; is there something I can do to force one versus the other?

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[antho]

It will auto resume if you are on a blue cruise mapped highway.

 

[tbinmd]

it depends on the amount of time you are sitting stopped.

Resuming the Set Speed from a Complete Stop (If Equipped)
If your vehicle follows a vehicle to a complete stop and remains stationary for less than a few seconds, your vehicle accelerates from a stationary position to follow the vehicle ahead.
If your vehicle follows a vehicle to a complete stop and remains stationary for more than a few seconds, an indicator and message displays.

 

[STM]

@tbinmd is correct.. It is not dependent on whether you are on a BC enabled highway or not..

It depends on how long you are stopped.. Beyond a few seconds, you have to press the resume button for ACC to take over again.. Happens to me all the time..

 

[PNGento]

@tbinmd is correct.. It is not dependent on whether you are on a BC enabled highway or not..

It depends on how long you are stopped.. Beyond a few seconds, you have to press the resume button for ACC to take over again.. Happens to me all the time..

This isn't how my truck operates. Yes, if I am stopped for more than about 3-5 seconds, I will get one of 2 messages. One says "stopped" and if this shows up, I either have to add some gas pedal or hit the cruise resume button. The other will say "auto resume"...and when this shows, when the vehicle in front moves about 10 feet, the truck starts up to follow without me having to do anything. So, doesn't have anything to do with how long I'm stopped...not sure if Blue Cruise mapping applies, as once, on a dirt road, in the middle of nowhere, I was in a long line of traffic trying to enter a state (FL) park where a huge number of manatees were gathered and the entrance was really backed up...first time I noticed the auto resume message and how it operated. I can't imagine this road was Blue Cruise mapped, however.

 

[oneinch]

@antho answered your question correctly. His is the only correct answer.

Auto Resume only engages while using hands-free BlueCruise. This means you're on a mapped BC road...basically an interstate. Not all mapped roads are interstates. When you encounter a traffic jam and traffic comes to a stop, your truck will auto resume when the traffic starts moving again*.

If you are not using hands-free BlueCruise...basically you're on a road other than an interstate, if you come to a stop while using ACC, the cruise control will stop after a few seconds. You have to press the button or gas to re-engage cruise control.

*Auto Resume might have a time out also. I don't know. It's not likely to be indefinite. If it does, it's time out period is much, much longer than a few seconds. I've never had auto resume disengage.

I'm assuming you are asking because you have BlueCruise. The Raptor might also auto resume. It doesn't have BlueCruise, but it does have Traffic Jam Assist. I haven't found any Ford explanation of what exactly TJA is. I have asked in the Raptor forum and no owners answered.

 

[hotrodmex]

Auto Resume only engages while using hands-free BlueCruise

Except it also works when just using Adaptive Cruise, because I don't have BC and I get this function. The manual doesn't mention BlueCruise specifically. It says:

Limited Access Highway is just a Freeway.

Since it says CAN remain, which to me means there is some situations where it may shorten that time.

 

[antho]

Except it also works when just using Adaptive Cruise, because I don't have BC and I get this function. The manual doesn't mention BlueCruise specifically. It says:

Limited Access Highway is just a Freeway.

Since it says CAN remain, which to me means there is some situations where it may shorten that time.

Yeah. It’s hard to tell. I’ve only ever had it happen once on a “Limited Access Highway” that also happened to be a blue cruise zone. We came to a complete stop and sat there for 30 seconds and it auto resumed. I’ve had it auto resume after about 2 seconds without blue cruise but never that long. It actually shocked me. With the amount of software updates we have been getting it’s hard to keep track of what actually works with what sometimes and FORD isn’t really being transparent about it. So we just have to take people’s word at this point

 

[Ajzride]

Yeah. It’s hard to tell. I’ve only ever had it happen once on a “Limited Access Highway” that also happened to be a blue cruise zone. We came to a complete stop and sat there for 30 seconds and it auto resumed. I’ve had it auto resume after about 2 seconds without blue cruise but never that long. It actually shocked me. With the amount of software updates we have been getting it’s hard to keep track of what actually works with what sometimes and FORD isn’t really being transparent about it. So we just have to take people’s word at this point

When you start digging into the logic and deconstructing the canbus messages the Ford BlueCruise/LaneCentering logic is highly complex. The IPMA is detecting rural versus urban areas, divided highways versus not divided, intersections, stop lights,, etc. This is all done via the model in the IPMA, there is more data coming in from the BlueCruise map. The truck knows very accurately when you are on a limited access highway.

If I had the patience to drive around with Ford's system engaged instead of OpenPilot, I could probably reverse engineer the algorithm for what will allow auto-resume and what will not. There are tons of toll/interstate/limited access streets around Houston with lots of stop and go traffic. Before I installed my Comma the Ford system always auto-resumed on those regardless of BlueCruise status.

 

[PNGento]

@antho answered your question correctly. His is the only correct answer.

Auto Resume only engages while using hands-free BlueCruise. This means you're on a mapped BC road...basically an interstate. Not all mapped roads are interstates. When you encounter a traffic jam and traffic comes to a stop, your truck will auto resume when the traffic starts moving again*.

If you are not using hands-free BlueCruise...basically you're on a road other than an interstate, if you come to a stop while using ACC, the cruise control will stop after a few seconds. You have to press the button or gas to re-engage cruise control.

*Auto Resume might have a time out also. I don't know. It's not likely to be indefinite. If it does, it's time out period is much, much longer than a few seconds. I've never had auto resume disengage.

I'm assuming you are asking because you have BlueCruise. The Raptor might also auto resume. It doesn't have BlueCruise, but it does have Traffic Jam Assist. I haven't found any Ford explanation of what exactly TJA is. I have asked in the Raptor forum and no owners answered.

Thanks. I do NOT have Blue Cruise, but I have most of its capability...other than no camera watching me and I have to "nudge" the wheel about every 12-15 seconds so it knows I'm paying attention. This explanation makes the most sense, but maybe I am not remembering the auto resume being present when I was on the dirt road. I had been thinking it kicked in only after several episodes of stop-go'ing, but maybe it is the fact I was on BC mapped roads even though I don't have ALL of features of BC. I have adaptive CC with stopping/sometimes restarting, lane centering, speed limit sign recognition...maybe the option called FORD CO-PILOT360 ASSIST 2.0, which I have is what gives me the above features? Anyway, I'll pay better attention when the auto resume shows up, but I suspect the BC mapped roads makes the best sense as an explanation.

 

[fordtruckman2003]

Nothing to do with BC with stop and go feature of adaptive cruise. Lots of threads cover this on here.

It can slow you to a full stop in traffic.
If you sit more than 20-30 seconds it will show "Stopped" and you have to resume it manually.
If it is less than that it will auto resume and away you go.

If you ever touch the brake even for a second you kick the cruise off and not see either of the messages. Then you have to use the resume button to turn it back on. I often do this because I still don't trust the truck doing a full stop. Resuming from already stopped you'll get the "Stopped" message and have to hit the resume button to get moving again.

 

[STM]

Auto resume will switch to stopped after 15 to 30 seconds of being fully stopped, both when you are in BC or ACC.. I haven't seen it behave differently between ACC and BC..I have also noticed that the duration it stays in auto resume is not consistent..

 

[oneinch]

I stand corrected. Auto Resume isn't part of BlueCruise, just ACC. It still uses the mapped roads same as BlueCruise.

Here's a question: does the auto resume feature require connected navigation? I can't find out first hand until my subscription runs out. I have no intention of paying for BlueCruise nor just connected navigation (if that is available by itself for BlueCruise equipped trucks). I'm not sure what all I'll lose by not subscribing to BlueCruise and/or connected navigation.

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