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Lucid Gravity UX 3.6 is here!

exxxviii said:
What I mean is that radar "sees" everything, but it cannot know where it is left, right, up, or down relative to your position. It generally just knows that objects are in front of you at relative speeds and distances, but not spacial positioning. Radar beams are not easily steerable, like camera & lidar, so relative positioning is difficult.
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Automotive 4D radars have been able to to this for some time, in a manner similar to lidar. I don't know which types of radars are used by Lucid vehicles.
www.designworldonline.com

How does 4D imaging work with radar sensors?

Four-dimensional (4D) imaging radar is a high-resolution sensing technology that adds vertical information (elevation) to traditional 3D radar (range, azimuth, Doppler). By capturing 3D spatial data plus vertical, it creates dense, high-resolution point clouds that enhance object detection in...
www.designworldonline.com www.designworldonline.com
 
mfdutra said:
I totally don't trust it when I'm approaching another car with a large speed difference, especially a stopped car. It seems like the radar takes too long to lock, probably to prevent false-positives, which is a good thing.

Tesla had tried to solve this problem too aggressively and created a much worse one, phantom braking.
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Hard to tell how much is driving style difference vs programming/sensor issue. I tend to slow down (or prepare to slow down) as soon as I spot red brake lights from the car ahead, even if it's a bit farther ahead vs DDPro clearly waits till the car in front is closer. So there's a few moments of "uhhh is it not going to slow down?!?". Fwiw, it never braked in an unsafe manner, so maybe my driving style is more conservative.

In theory, Gravity's sensors should give it more accurate speed/acceleration data on the car ahead so my heuristic to "slow down if you see brake lights" is perhaps an outdated conditional to hold an ADAS to.
 
yadaBaga said:
Hard to tell how much is driving style difference vs programming/sensor issue. I tend to slow down (or prepare to slow down) as soon as I spot red brake lights from the car ahead, even if it's a bit farther ahead vs DDPro clearly waits till the car in front is closer. So there's a few moments of "uhhh is it not going to slow down?!?". Fwiw, it never braked in an unsafe manner, so maybe my driving style is more conservative.

In theory, Gravity's sensors should give it more accurate speed/acceleration data on the car ahead so my heuristic to "slow down if you see brake lights" is perhaps an outdated conditional to hold an ADAS to.
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This likely is what causes a lot of traffic. Humans slowing down when they see red lights well ahead when it may not (could very well be needed) be necessary. The automated system may be doing the “smarter” thing and waiting to slow when it’s absolutely necessary. If all cars were self driving, they’d slow and accelerate all together at the perfect speed and there’d be very little traffic.
 
HC_79 said:
I agree. I’ve been disengaging Drive Assist more when I’m approaching interchanges due to the fact that you need to be on high alert to make sure it doesn’t change you back out of the lane you need to be in for the upcoming change (first world problems 😂). Hoping we’ll see it become more “path aware” when navigating as we get closer to L2++
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Same -- I've actually missed exits because I'm still so used to my 2019 Model X (which I still use when the Gravity is being driven my someone else in the house). I'm looking forward to 2020-level "Navigate on Autopilot" functionality. I don't need (or trust) the city streets capabilities on either car.
 
exxxviii said:
What I mean is that radar "sees" everything, but it cannot know where it is left, right, up, or down relative to your position. It generally just knows that objects are in front of you at relative speeds and distances, but not spacial positioning. Radar beams are not easily steerable, like camera & lidar, so relative positioning is difficult.
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Automotive radar using multiple channels that allow digital beamforming to determine azimuth. In addition the latest 4D radar can determine elevation by using additional channels. Radar can determine left right and up and down.
 
It seems like the radar takes too long to lock
Adnillien said:
Automotive radar using multiple channels that allow digital beamforming to determine azimuth. In addition the latest 4D radar can determine elevation by using additional channels. Radar can determine left right and up and down.
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Do these actually exist in high-volume retail automobiles? I’m pretty sure current automotive radar tech is a brute force cudgel.
 
exxxviii said:
It seems like the radar takes too long to lock
Do these actually exist in high-volume retail automobiles? I’m pretty sure current automotive radar tech is a brute force cudgel.
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Yes they absolutely do exist and are in many cars today. 4D radar is relatively new and hence is in few cars.
 
Adnillien said:
Yes they absolutely do exist and are in many cars today. 4D radar is relatively new and hence is in few cars.
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Does the Gravity have high resolution radar? If not, in the context of this thread, the theoretical existence is moot. I don’t think this is as prevalent as you think it is. Automotive radar has limited spatial resolution. Maybe someday, but I doubt high-resolution radar is at play here. The descriptions I have seen say the Gravity uses standard radar for long-range object detection for TACC and forward collision assistance.
 
exxxviii said:
Does the Gravity have high resolution radar? If not, in the context of this thread, the theoretical existence is moot. I don’t think this is as prevalent as you think it is. Automotive radar has limited spatial resolution. Maybe someday, but I doubt high-resolution radar is at play here. The descriptions I have seen say the Gravity uses standard radar for long-range object detection for TACC and forward collision assistance.
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I do not know if Gravity Radar is 4D (includes elevation) or not. It certainly includes azimuth. Even the Air radar includes digital beam forming for azimuth. you are correct in the fact that resolution is a limiitation for radar and why LiDAR is included in advanced ADAS sensor suites.
 
Adnillien said:
I do not know if Gravity Radar is 4D (includes elevation) or not. It certainly includes azimuth. Even the Air radar includes digital beam forming for azimuth. you are correct in the fact that resolution is a limiitation for radar and why LiDAR is included in advanced ADAS sensor suites.
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I’m not even talking about “4D” radar. I’m talking about just basic side-to-side resolution. I don’t think the Gravity, or any modern car, has much lateral resolution. Gravity descriptions seem like ordinary, basic radar. This is why it is so limiting today.
 
Apparently some issue with lidar on my gravity (I don’t get any error messages on the car) won’t allow it to receive the update.
 
3.6.2 here it goes ;)
T

Thread 'NHTSA 3.6.2 Update Notes'

Sorry if this is a repost, but I couldn't find any other mentions.

I was looking at the NHTSA recall website, and see that Lucid is releasing 3.6.2 for the Gravity with fixes to rear climate control logic (and a few other fixes).
Screenshot 2026-07-14 at 4.35.10 PM.webp
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Hopefully it will be spread / released soon to you all ;)
 
Another attempt at getting the key fob working right. At least they're acknowledging there's still a problem for many. I feel like an idiot just standing at my door for 5-20 seconds pretending I'm looking for something when I'm really waiting for the door to unlock while the guy in line behind me at the car wash is watching for me to leave. Or my passenger is wondering why I'm not letting them in and I have to explain the whole failure to them.

Hoping this one finally does the trick.
 
@marqie: I am sorry to reach out here, but I don’t have the ability to PM as I have been a lurker for months without ever creating an account.

I finally got 3.6 after multiple calls into customer service, each of which had me on hold for a very long time unfortunately.

But now my password just will not be accepted when I try to confirm my identity. I have tried every trick I saw in this thread, to no avail.
I’m thinking what’s unique about my situation is that I changed my email address since my account was first created. So my Lucid log-in on the web or in the app is on the new email but my Gravity is (presumably) still on the old email with no way for me to update it.

Either way, I would really appreciate your help because I don’t know where else to go.

My VIN is 7UUG1TJJ9TA008536.

Thank you for the awesome support you provide here!
 
NYCRDU said:
@marqie: I am sorry to reach out here, but I don’t have the ability to PM as I have been a lurker for months without ever creating an account.

I finally got 3.6 after multiple calls into customer service, each of which had me on hold for a very long time unfortunately.

But now my password just will not be accepted when I try to confirm my identity. I have tried every trick I saw in this thread, to no avail.
I’m thinking what’s unique about my situation is that I changed my email address since my account was first created. So my Lucid log-in on the web or in the app is on the new email but my Gravity is (presumably) still on the old email with no way for me to update it.

Either way, I would really appreciate your help because I don’t know where else to go.

My VIN is 7UUG1TJJ9TA008536.

Thank you for the awesome support you provide here!
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This happened to me as well. Just call support and they can either fix your email address, or perform a factory reset if needed.
 
NYCRDU said:
@marqie: I am sorry to reach out here, but I don’t have the ability to PM as I have been a lurker for months without ever creating an account.

I finally got 3.6 after multiple calls into customer service, each of which had me on hold for a very long time unfortunately.

But now my password just will not be accepted when I try to confirm my identity. I have tried every trick I saw in this thread, to no avail.
I’m thinking what’s unique about my situation is that I changed my email address since my account was first created. So my Lucid log-in on the web or in the app is on the new email but my Gravity is (presumably) still on the old email with no way for me to update it.

Either way, I would really appreciate your help because I don’t know where else to go.

My VIN is 7UUG1TJJ9TA008536.

Thank you for the awesome support you provide here!
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Turn off wifi in the car and try it again.
 
jered said:
This happened to me as well. Just call support and they can either fix your email address, or perform a factory reset if needed.
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Thanks yeah I guess I’ll have to, but I have had really bad luck with the hold times and having to call multiple times for someone to actually do something, so I was hoping to take the marqie shortcut :-).
 
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