Cruise/drive assist speed has to be set everytime?

[tmichael]

I would think so. I will try that during the first part of my road trip tomorrow. Hopefully, they’ll fix it in an update as it’s definitely new behavior for me in 3.4.1 and I have over 10,000 miles since August. Lots of road trips without that issue.

WOW, you knock a lot of miles out!! What a road warrior!

 

[msaunders9430]

Except that is not what the manual says, nor is it a setting. Maybe go read what the manual actually says before popping in three months later to tell me I'm using a feature that Lucid says the car has wrong.

There is no resume, if you re-engage DD it will either engage at your current speed or whatever posted speed limit+ offset setting you have and not the "last set desired speed" as indicated in the manual.

"When Adaptive Cruise Control deactivates and then activates again, the last set desired speed will resume for the same posted speed limit."

So, say the posted speed limit is 60mph and you enable ACC at that speed (with no offset just to keep it simple). Then you use the pad to increase to 65mph. This is your "last set desired speed". If ACC is deactivated when you reactivate it the speed setting will revert to the 60mph speed. Feel free to go try it, I have. The manual's text is clearly wrong in how it works.

My opinion:

When you manually increased the speed to 65mph, you decided to no longer drive at the posted speed limit of 60 mph. The manual doesn't say the last desired speed will resume. It says the last desired speed will resume for the same posted speed limit. That is why, if the posted speed limit has changed from the previous posted speed limit, ACC will default to the offset of the newly posted speed limit.

The feature it sounds like you desire is for ACC to resume at the last set desired speed, even if the last desired speed differs from the current posted speed limit. Which differs from the name of the setting (Set Cruising Speed/Posted Speed Limit). Key wording: "posted speed limit".

 

[msaunders9430]

Except that is not what the manual says, nor is it a setting. Maybe go read what the manual actually says before popping in three months later to tell me I'm using a feature that Lucid says the car has wrong.

There is no resume, if you re-engage DD it will either engage at your current speed or whatever posted speed limit+ offset setting you have and not the "last set desired speed" as indicated in the manual.

"When Adaptive Cruise Control deactivates and then activates again, the last set desired speed will resume for the same posted speed limit."

So, say the posted speed limit is 60mph and you enable ACC at that speed (with no offset just to keep it simple). Then you use the pad to increase to 65mph. This is your "last set desired speed". If ACC is deactivated when you reactivate it the speed setting will revert to the 60mph speed. Feel free to go try it, I have. The manual's text is clearly wrong in how it works.

Now the text below sounds close to what you want; minus the deactivation part.
I've done this and it does work.

 

[pezpunk]

Except that is not what the manual says, nor is it a setting. Maybe go read what the manual actually says before popping in three months later to tell me I'm using a feature that Lucid says the car has wrong.

There is no resume, if you re-engage DD it will either engage at your current speed or whatever posted speed limit+ offset setting you have and not the "last set desired speed" as indicated in the manual.

"When Adaptive Cruise Control deactivates and then activates again, the last set desired speed will resume for the same posted speed limit."

So, say the posted speed limit is 60mph and you enable ACC at that speed (with no offset just to keep it simple). Then you use the pad to increase to 65mph. This is your "last set desired speed". If ACC is deactivated when you reactivate it the speed setting will revert to the 60mph speed. Feel free to go try it, I have. The manual's text is clearly wrong in how it works.

at WORST it's a minor documentation issue. Not a bug or missing feature.

 

[RandomDesign]

My opinion:

When you manually increased the speed to 65mph, you decided to no longer drive at the posted speed limit of 60 mph. The manual doesn't say the last desired speed will resume. It says the last desired speed will resume for the same posted speed limit. That is why, if the posted speed limit has changed from the previous posted speed limit, ACC will default to the offset of the newly posted speed limit.

The feature it sounds like you desire is for ACC to resume at the last set desired speed, even if the last desired speed differs from the current posted speed limit. Which differs from the name of the setting (Set Cruising Speed/Posted Speed Limit). Key wording: "posted speed limit".

That's not at all what I'm saying and the manual absolutely says desired speed., read it again. It specifically says " the last set desired speed will resume for the same posted speed limit" and this is not true. If you disengage/reengage ACC (even within the same posted limit!) it does not resume at the last set speed, it resumes at the speed limit, speed limit plus offset or the current speed if you have it set for that, not at all the last set speed in any of the settings. I've tested this a number of times.

It's not a big problem but the manual is clearly wrong so either it's a bug or the manual should be updated to the correct behavior.

 

[RandomDesign]

Now the text below sounds close to what you want; minus the deactivation part.
I've done this and it does work.

View attachment 36803

That's just activating drive assist though and has nothing to do with resuming a speed even if they used that word.

 

[msaunders9430]

That's not at all what I'm saying and the manual absolutely says desired speed., read it again. It specifically says " the last set desired speed will resume for the same posted speed limit" and this is not true. If you disengage/reengage ACC (even within the same posted limit!) it does not resume at the last set speed, it resumes at the speed limit, speed limit plus offset or the current speed if you have it set for that, not at all the last set speed in any of the settings. I've tested this a number of times.

It's not a big problem but the manual is clearly wrong so either it's a bug or the manual should be updated to the correct behavior.

I'm pretty sure I understand your issue. It's not that complicated. In your example, you want to be able to resume at 65 mph, your last set desired speed. The manual does not say the car will do that. I do know how to read.

However, if my response is not at all what you're saying, then good luck with your issue. My car does what the manual says it should do. I have a 3 mph offset, so for me in your example, ACC would reactivate at 63 mph. If I want 65 mph, I'm tapping up twice to get to 65 mph. Good luck with your issue.

 

[msaunders9430]

That's just activating drive assist though and has nothing to do with resuming a speed even if they used that word.

Has nothing to do with resume, even though they use the word. It resumes the speed set in a different mode, but ok. Good luck.

 

[msaunders9430]

That's not at all what I'm saying and the manual absolutely says desired speed., read it again. It specifically says " the last set desired speed will resume for the same posted speed limit" and this is not true. If you disengage/reengage ACC (even within the same posted limit!) it does not resume at the last set speed, it resumes at the speed limit, speed limit plus offset or the current speed if you have it set for that, not at all the last set speed in any of the settings. I've tested this a number of times.

It's not a big problem but the manual is clearly wrong so either it's a bug or the manual should be updated to the correct behavior.

Who knows, perhaps Lucid will add a resume feature that when enabled, upon reactivation of ACC, the last desired speed will resume even if that speed differs from the same posted speed limit plus the pre-selected offset. In the current setup, if a person manually increases the cruising speed to a speed (e.g. 65) that differs from the posted speed limit plus the pre-selected offset, that manually set cruising speed (posted speed limit + manually created offset) will not be the cruising speed when ACC is reactivated.

Again, good luck with your issue.

 

[msaunders9430]

Agree! That’s what I meant. It’s a super important feature (and fundamental to ACC and hands-off driving for DDPro). I think it’s a bug that it sees the yellow suggested signs and views them as speed limit signs. Speed Limit signs should be very easy to “read” as they’re all the same format 99% of time (except when there’s a separate speed for trucks, but I am fine if it can’t parse that always). Car can ignore anything but for that format. It’s almost like it’s too sensitive now.

Something else I noticed when testing for the sudden deceleration action; when entering a highway the car knew the posted speed limit before I was on the highway and had driven past a speed limit sign. I noticed the same when merging, via a ramp, from one highway to another.

When entering a road with a speed limit of 65, the car displayed that speed limit before I was on the highway and drove past the speed limit sign.
When I merged to a different highway, on the transition ramp the car showed the ramp speed limit of 45, but then showed the speed limit of 70 for the highway ahead, before I was on that highway. Smart system, but cameras have ADD.

I'm thinking this is an example of how DreamDrive uses HERE Maps data; something @HC_79 has mentioned before when owners have asked about replacing HERE Maps with Google Maps. Perhaps the HERE Maps data includes the speed limit for roads. This may be a no-brainer to some, and it does make sense. Just never noticed this possible use of the data until recent testing. I usually don't look at the speed limit displayed on the screen until I get a audio alert that I'm 3 mph over the posted speed limit.

 

[illopp00]

Is there a resume function for ACC? For the Air you could just push the left wheel back in and it would restart with the last set speed. In Gravity I have turned off the offset and auto speed limit update, it just prompts me to accept the new speed.

 

[msaunders9430]

Is there a resume function for ACC? For the Air you could just push the left wheel back in and it would restart with the last set speed. In Gravity I have turned off the offset and auto speed limit update, it just prompts me to accept the new speed.

It depends on how you want that resume function to ... function.
In the Air, is that "last set speed" the actual last speed set by the driver or is it a speed that is based on the posted speed limit and an offset, if an offset has been selected?

In my experiences, If I'm on a highway with a posted speed limit of 70 mph and I have a 3 mph offset setup, when I activate ACC my car accelerates to 73 mph.
If I deactivate ACC, drive at a different speed, and then reactivate ACC, my car cruises at 73 mph unless the posted speed limit has changed.
If the posted speed limit is 65 when I reactivate ACC, my car cruises at 68 mph (posted speed limit plus 3 mph offset).

However, if while cruising at 70 mph with the 3 mph offset, but manually increase my cruising speed to 75 mph.
If I deactivate ACC drive at a different speed, and then reactivate ACC and the posted speed limit has not changed, my car is not going to cruise at that manually created crusing speed of 75 mph. It's going to cruise at 73 mph based on the ACC settings I selected (Posted Speed Limit plus 3 mph offset).

Some owners are expecting ACC to remember the manually created cruising speed. (75 mph)
The manually created cruising speed is kind of another speed offset (+5 mph) in addition to the one preselected in the ACC settings.
I see nothing in the manual about the car being able to cruise at the manually created offset and the preselected offset.

Just my interpretation.

 

[msaunders9430]

Is there a resume function for ACC? For the Air you could just push the left wheel back in and it would restart with the last set speed. In Gravity I have turned off the offset and auto speed limit update, it just prompts me to accept the new speed.

Looks like in the Air you can just simply return to the "previously set speed".
The posted speed limit and an offset are not considered.
Looks like ACC on the Air is more like the traditional cruise control when it comes to resuming speed.

 

[msaunders9430]

Is there a resume function for ACC? For the Air you could just push the left wheel back in and it would restart with the last set speed. In Gravity I have turned off the offset and auto speed limit update, it just prompts me to accept the new speed.

I can only speak for myself, but I know if I'm driving on a highway where the speed limit was 70 and with my 3 mph offset, ACC has me cruising at 73 mph, if I deactivate ACC and then merge onto a highway where the speed limit is 55 and I reactivate ACC, I do not want to accelerate back up to 73 mph. I want the system to take into account that I'm now on a road where the speed limit is lower than when I last used ACC. Just my preference.

I also have the auto speed limit update turned off.

 

[Ron_Burgundy]

Something else I noticed when testing for the sudden deceleration action; when entering a highway the car knew the posted speed limit before I was on the highway and had driven past a speed limit sign. I noticed the same when merging, via a ramp, from one highway to another.

When entering a road with a speed limit of 65, the car displayed that speed limit before I was on the highway and drove past the speed limit sign.
When I merged to a different highway, on the transition ramp the car showed the ramp speed limit of 45, but then showed the speed limit of 70 for the highway ahead, before I was on that highway. Smart system, but cameras have ADD.

I'm thinking this is an example of how DreamDrive uses HERE Maps data; something @HC_79 has mentioned before when owners have asked about replacing HERE Maps with Google Maps. Perhaps the HERE Maps data includes the speed limit for roads. This may be a no-brainer to some, and it does make sense. Just never noticed this possible use of the data until recent testing. I usually don't look at the speed limit displayed on the screen until I get an audio alert that I'm 3 mph over the posted speed limit.

So I drove today for four hours and turned the “Automatic Cruising Speed Update” OFF. This “fixed” the rapid deceleration when passing exits. It’s interesting as well because as I think @msaunders9430 pointed out, it still shows you on the left side each time it recognizes a speed change and asks if you want to use that as the posted limit by pressing the center of the left dpad.

This made it extremely obvious every time it read the “wrong” speed when I passed an exit. It would offer up 25mph and I just didn’t select it. Or 35 or whatever that exit’s suggested speed was. I wonder if DDPro can’t distinguish the color of signs as that would be easy since all the “wrong” signs are yellow. But, I think DDPro is only supposed to recognize traffic light colors (at some point in the future).

As suspected, 3.4.1 seems to have made the car super sensitive to any number that looks like a speed limit versus just looking for the typical speed limit sign.

I expect they’ll address at some point but for now turning the above feature off does the trick.

 

[dbsb3233]

hm I might need to check some settings maybe. if you break it deactivites and is just gone, same if you use the X on the steering wheel? How else would it deactivate?
to enable again, it just takes whatever speed you drive. Maybe it is a setting and it would at least take the posted speed limit, I will check.

I haven't tried it in the Gravity yet, but typically in other cars, it's touching the brake pedal that only suspends ACC, as versus cancelling it altogether on the steering wheel. Resuming returns you to the last set speed before the brake pedal suspended it. But if you cancelled with the steering wheel, you turn it completely off (no resume, only starting fresh).

 

[RandomDesign]

I haven't tried it in the Gravity yet, but typically in other cars, it's touching the brake pedal that only suspends ACC, as versus cancelling it altogether on the steering wheel. Resuming returns you to the last set speed before the brake pedal suspended it. But if you cancelled with the steering wheel, you turn it completely off (no resume, only starting fresh).

That's exactly what the Gravity doesn't do. If you have to use the brake pedal to suspend ACC it completely resets and there is no way to resume at whatever speed you were set to prior to that. You can only have it start at the speed limit, speed limit plus buffer or current speed depending on what your settings are.

Like I said in an earlier comment, it's not a huge deal but a very odd omission from the cruise control given how standard resume has always been.

 

[illopp00]

I haven't tried it in the Gravity yet, but typically in other cars, it's touching the brake pedal that only suspends ACC, as versus cancelling it altogether on the steering wheel. Resuming returns you to the last set speed before the brake pedal suspended it. But if you cancelled with the steering wheel, you turn it completely off (no resume, only starting fresh).

Yeah in the Gravity if you use brakes to cancel ACC it totally cancels everything and clears everything. Then I hit the button on the wheel to restart, and it picks up your current speed. Which usually means I have to reset to the speed I actually want, although with the new update the button is sensitive and works 100% of the time and quickly.

 

[msaunders9430]

Yeah in the Gravity if you use brakes to cancel ACC it totally cancels everything and clears everything. Then I hit the button on the wheel to restart, and it picks up your current speed. Which usually means I have to reset to the speed I actually want, although with the new update the button is sensitive and works 100% of the time and quickly.

Could you make your current speed also be the speed you want before restarting? That way no reset needed?

 

[dbsb3233]

Could you make your current speed also be the speed you want before restarting? That way no reset needed?

You mean just manually drive up to the speed you want before turning on ACC? Sure, that's the way we normally turn on ACC from scratch. Then tweak it with the up/down pad buttons if needed.

I do find I almost never use Resume much anymore on my other vehicles since ACC already does most distance slowing for me. I rarely touch the brake pedal in that situation like I did with "dumb" CC. ACC just automatically resumes speed when the distance clears (the whole point of ACC).

What I don't like about cars with only ACC though (and no dumb CC) is that when the sensors get blocked, you lose all CC and have to manually drive with the pedal. Our Macan only has ACC (no dumb CC) and it appears the Gravity is the same. Our Mach-E had both, which was useful at times. Just turned off the Adaptive part when the sensors got blocked.