ECU Upgrade Question

Getting my ECU upgraded on 29 Aug. Wondering if the settings and associated FOBs are saved in a separate EPROM?
Both batteries are being replaced as well, so that bodes poorly for not having to re-select my settings, etc. Anyone have experience with this?
Wish me luck!

Count on all your settings being lost with the upgrade. It's best to take notes before dropping it off and reapply them when you get the car back. Oh, also turn off the easy exit setting before dropping it off so the driver's seat position can be saved to your profile without having to readjust it.

As for the fobs, those are easy enough to reconnect. Ask service to do that if you're concerned about it.

Makes sense. I'm curious how the boot-up-sequence may improve. I see random and frequent issues with the panel options if I go "too quick" from door-access to backing-out of my "carriage house" as-it-were. ;p For instance, for the entire drive, sometimes I get radio, sometimes not. Sometimes I get cameras working, sometimes no cameras for the drive. Sometimes the panel has an "Air" fuzzy Nav-background image on the panel, sometimes the standard dashboard. The Adaptive Cruise has always been jerky and unpredictable. The "Self Driving" feature hands-free or otherwise is far too unpredictable to trust compared to my CT6 Platinum Super-Cruise I'd use daily. Having twitchy responses I really don't trust any automation as the cameras are intermittent and the curb-rash-alert never works. Range and distances of the sensors are always off when displayed. My screens flip-out on occasion and glitch. I ignore all of those "comfort" features. The A/C and heat seem to rarely fail though, which is nice.

I think the software stumbles on boot-up with my slower CPU. Soft-Resets help the initial problem as it allows seemingly a linear and slow initialization from-scratch versus what seems to be a parallel load of several features at-once. Not sure on this. Not sure if they're using Java or something else. I never have a problem with the vehicle "important" functions though, such as that the blinkers, headlight and drivetrain always work, which is nice. I don't mind because 1111Hp and I never thought Lucid was a "luxury" car but more of a muscle-car, similar to a few Trans-Am Firebird SLP Firehawks I've owned, or maybe quality of a Grand Sport C6 Corvette with the 4LT trim. Interior and features are fairly mediocre compared to various Cadillacs I've owned, such as the ELR, CT6, or CT4-V. Reminds me more of an upscale Chevy. My hope is the ECU upgrade will assist in a better boot-up.

BLUF (Bottom Line Up-Front): I think the ECU upgrade will fix a good portion of my issues because things sometimes trip over each other in the load-bootup phase.

mikecronis said:

I never have a problem with the vehicle "important" functions though, such as that the blinkers, headlight and drivetrain always work, which is nice.

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That's because this upgrade is only the infotainment system, not the ECU (engine control unit) which is a separate computer and apparently more reliable.

mikecronis said:

BLUF (Bottom Line Up-Front): I think the ECU upgrade will fix a good portion of my issues because things sometimes trip over each other in the load-bootup phase.

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This. For me, my CCCv2 upgrade addressed some of the minor issues that you also pointed out. Even though it was just an infotainment upgrade, the snappiness of that seems to have made a difference in resolving general boot up issues.

Has it helped lag time with the cameras when changing lanes, etc?

And has it helped with occasional to frequent loss of internet issues?

Lucken said:

And has it helped with occasional to frequent loss of internet issues?

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This is unrelated.

This all makes sense. I think the "computer upgrade" will help those features. I'll give a full report to everyone on how it went on Friday.
I'll take screenshots of my settings. I wonder if they transfer some of those to the new system beforehand? Probably not. Login to Sirius XM, set-up face imprint, etc.

borski said:

This is unrelated.

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I’ve noticed my car’s cell reception is generally awful all around. Is that a known issue they’re still working on?

mikecronis said:

This all makes sense. I think the "computer upgrade" will help those features. I'll give a full report to everyone on how it went on Friday.
I'll take screenshots of my settings. I wonder if they transfer some of those to the new system beforehand? Probably not. Login to Sirius XM, set-up face imprint, etc.

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No, you’ll be setting it up as a brand new vehicle

JGard18 said:

I’ve noticed my car’s cell reception is generally awful all around. Is that a known issue they’re still working on?

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I have no idea.

borski said:

I have no idea.

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That's likely a physical issue involving the antenna receiver, perhaps in size or placement?

mikecronis said:

That's likely a physical issue involving the antenna receiver, perhaps in size or placement?

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Or a bad TCU. Or a rough zip code. Who knows

Had the Infotainment Module upgrade (wasn't an ECU, actually). Its location is inside the glovebox area.
The new unit comes with a small fan for the chip.
I also had 2 new 12v batteries installed which look like "half" batteries, one is under the rear seat "bench" and the other where the 12v accessory socket well sits. No rear tire removal required.
Bench pops off and you press the seatbelt female receivers through the holes and comes right-off to access and it's just the turn of a wrench to remove the 2 terminals. Stretch-y holder removed to take it out.
Trunk battery is also easy to get to as well with a small bracket-holder removal. Easy and I could do it myself. Weird-sized "half" batteries. Price was slightly high for a half-battery each at $220 x 2 plus $70 "labor" but heck Lucid drove to my house so no complaints.
New Infotainment computer was $995 (plus $70 labor as well).
The wiper-blade inserts they had allegedly put in last year were replaced upon my request because they smeared all the time and were shoddy (and I suspect not actually replaced beforehand) for $58 (which included "labor") which isn't out-of-the-park on cost (plus they don't smear now, which is nice).

They ran it in Factory Mode (which only allows 8mph driving, interestingly, according to "Chris") as the dash says "FACTORY MODE" so it would retain some of the settings. It remembered the home WIFI username and password and downloaded the patches quickly in my garage. Chris had to ask Lucid to create a "special, full version" to pull and that happened within minutes. Download and install took about an hour. It was cool to watch the progress through the ethernet cable connected.

Everything put back together and I began the "New User" setup and Chris took off. Total cost was $1500 (2 batteries, 2 wipers, 1 computer) installed plus tax and labor isn't too bad.

It was odd because the car already knew the FOBs but on the panel had none associated.
My Lucid Username/Password and PIN said they were wrong and to go onto the website Lucid/portal and change it, which I did, and then the car still said my username/password was wrong.
Went through several menus, and got to changing the tire settings and somehow the PIN worked there and then logged me in automatically. Settings were not retrieved, however, but it allowed me to re-scan my face for image recognition.
Added SiriusXM channels after logging into that. Re-setup my HomeLink garage remote.
Setup the phone as a Mobile Key as well, and set my previous settings after having had taken pictures of all of them on the screens the night before.

After done, gave the car a soft reboot by pressing the Air Logo.

Impressions is that the soft-reboot is much quicker and takes about 1.5 minutes versus 3 or 4 minutes.
Car "wakes up" boots-up much faster by about 2x which is nice. I'd say car is "ready to go" in about 4-5 seconds versus about 10-15 seconds.

Dash screen response is reasonably quicker but not very noticeable to me because it was pretty quick before. Less delay by about a half-second to a second quicker; about Pixel 9 Pro quick.

Sadly, the "no radio" issue still occurs every other drive and I have to soft-reboot to have audio. No blinker sounds, etc. No audio whatsoever. Soft-reboot fixes this.
This started occurring with the Android Auto 2.7.0 Update and the new computer does not fix this. I had hoped it was simply a boot-up issue with slow, overlapping commands unseen, but this is not the case. I am not sure why no-audio happens and I can't make any adjustments in my behavior to fix it. I thought maybe phone-only mobile-key might be the cure, or FOB-only, or Valet-Card-only, but none of these seem to make a difference.

Anyone have any ideas?

mikecronis said:

It was odd because the car already knew the FOBs but on the panel had none associated.

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There are two 'stages' to pairing of a keyfob; the first is to pair it with the car. That allows it to unlock the vehicle, etc. This is not set up within infotainment.

The second is to associate the fob with a profile; this is optional, and allows the infotainment to load the correct profile based on whose fob is nearby.