Comma AI self driver assistant

[NeighborGeek]

normal lane centering will work as low as 15mph, but there are a whole list of requirements for it to come on, and they are rarely satisfied in places with low speed limits.

Ahh, sorry. I was thinking of the Lane Keeping Assist, which kicks in at 40. Lane Centering apparently works at lower speeds, but only if using Cruise. I guess I never use cruise on city streets, so I wouldn't have noticed.

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[Ajzride]

Ahh, sorry. I was thinking of the Lane Keeping Assist, which kicks in at 40. Lane Centering apparently works at lower speeds, but only if using Cruise. I guess I never use cruise on city streets, so I wouldn't have noticed.

I had 9 speeding tickets before I finished college. Nothing crazy, no 100mph, just 10-15 over. I learned to use my cruise as soon as I left the driveway.

 

[campalex24]

Might be a bit late to this. I have a 2024 lightning flash. Had the comma 3x previously in a 2021 Kia telluride. Worked fine in the Kia.

I just installed the 3x in the lightning, using the Q4 harness (2 of them actually as one was lost in the mail but showed up and I tried both cables).

Initially it worked after installing BluePilot 3.1, however it started showing the “CAN BUS likely faulty cables” error after all the warnings pop up when the truck is turned on. It occasionally works but then suddenly a bunch of the “pre-collision unavailable” “lane centering unavailable” and other errors all show up on my dash and the same CAN BUS error then shows up.

Is this something I can fix with exceptionally limited skills/replacement or alternative parts? (I hesitate to modify the boards/anything with soldering as I couldn’t reliably say whether I had done something incorrectly versus a component failure)

basically, what do I do to get this to work?

 

[Ajzride]

Might be a bit late to this. I have a 2024 lightning flash. Had the comma 3x previously in a 2021 Kia telluride. Worked fine in the Kia.

I just installed the 3x in the lightning, using the Q4 harness (2 of them actually as one was lost in the mail but showed up and I tried both cables).

Initially it worked after installing BluePilot 3.1, however it started showing the “CAN BUS likely faulty cables” error after all the warnings pop up when the truck is turned on. It occasionally works but then suddenly a bunch of the “pre-collision unavailable” “lane centering unavailable” and other errors all show up on my dash and the same CAN BUS error then shows up.

Is this something I can fix with exceptionally limited skills/replacement or alternative parts? (I hesitate to modify the boards/anything with soldering as I couldn’t reliably say whether I had done something incorrectly versus a component failure)

basically, what do I do to get this to work?

Sounds like a bad USB-C cable. Uncle Tony did some testing on the long USB-C cable supplied by Comma and it is very hard to seat fully. The first step is to unplug both ends of the USB-C cable and push them firmly until you hear them click.

If that fails:

Pull the comma on the windshield and connect it to the harness box under the dash using only the short 18" cable sent from comma and see if the radar errors go away.

Also, you should upgrade to bluepilot 4.0 (this is unrelated to the issue you are having to be clear, but 3.x is a buggy release tree)

https://bluepilot.dev/2025/07/25/bluepilot-4-0-release/

 

[Ajzride]

There is now an order form page for my new dock:

https://bluepilot.dev/3x-dock-order-page/

 

[branden]

New video demoing BluePilot 4.0 and comparing to BlueCruise 1.4 and showing the new @UncleTony coupler.

 

[Ajzride]

@campalex24 get it resolved?

 

[campalex24]

@campalex24 get it resolved?

Yes, thank you!!! I just ordered one and also a mount, found a work around with a dual end usb 4 coupler for now

 

[CerebralPrimate]

Because I have never had any sort of full self drive anything, I became curious about this. My Lighting came to me at exactly 3 years and 1 month, so BC wasn't something I could experiment with. That said, it would be a big mental shift for me to trust either the Ford BC or a Comma.

Like many, I watched Branden's video today and it got me curious. When I first got my Lighting, I tried to extend the BC for free (a month ago) when I got the truck, but no dice... I shrugged it off as no big deal because I had so many other things to figure out at the time. And again, didn't trust it anyway. But after Branden's video, I was more curious about it.

I did some looking around, first wondering just how many people actually pay for Ford BC. To me, if it's that great, then most people would pay to keep it, right? Even AI says there's no good data anywhere on this, so it said it's best guess was based on the Ford target of a 20% take rate after the initial free trial. I personally don't see 20% of people opting in for that monthly or yearly fee. I could see maybe 5%. Max of 10%. Sales goals are always set way higher than real expectations behind closed doors.

Then I looked into the Comma, which a lot of users reported satisfaction with, and I'd guess most of those users had to pay the $1K up front for it to even know if they liked it. Might be a few sponsored videos around, but I'm guessing many are just honest user reviews. But still, a thousand bucks is a lot to shell out for something that so few people want bad enough to actually pay for the privileged of using it.

Still, at first I thought "well, seems the after market is better priced and has less harsh reviews", but then I thought of my original question and applied it to myself. Would I be willing to pay, either $500/yr for BC, or $1K for permanent use of a Comma 3X? Truthfully, my answer is no to both. I am sure both are far better than adaptive cruise, but does that neat functionality really justify the cost in my life? Apparently not.

I am guessing within this thread most will feel different. As such, can anyone help me understand why the $1K expense is truly warranted?

 

[Ajzride]

I am guessing within this thread most will feel different. As such, can anyone help me understand why the $1K expense is truly warranted?

A lot of it depends on how much you drive and where you drive. I do almost 35,000 miles per year on the interstate. I couldn’t live without it.

where are you located? we might have someone close you could test drive with.

 

[CerebralPrimate]

Tesla's up front take rate on FSD (which is arguably far ahead of anyone else's system as they've been working on it the hardest) is 15%.

That's why I figure the competitor's native systems (Blue Cruise, Super Cruise, etc), which are inferior would see a far smaller percent than that.

 

[CerebralPrimate]

A lot of it depends on how much you drive and where you drive. I do almost 35,000 miles per year on the interstate. I couldn’t live without it.

where are you located? we might have someone close you could test drive with.

I drive 1K miles per month. Sometimes less.

I am in north florida, but make frequent trips to central florida for both work and to help my elderly parents out with various things they need (mostly medical). I do 100 miles each way three weeks p/m, but then stick pretty close to home aside from that, so 1K may be a high estimate. But I definitely do those road trips 3X p/m.

 

[branden]

I personally cannot imagine doing the 20k+/year I do in a vehicle without solid ADAS. Once you're used to it (I first got used to it on my former 2015 Tesla Model S with AP1), it's hard to go back. When I first bought my Lightning, it had a front camera fault and had to drive ~300 miles home without even cruise control and it was pretty miserable IMO but to each their own.

Worth noting that Comma does not do media / influencer review units so all units have been purchased (including myself), though someone could buy and return within 30 days if they really wanted to.

 

[Ajzride]

I drive 1K miles per month. Sometimes less.

I am in north florida, but make frequent trips to central florida for both work and to help my elderly parents out with various things they need (mostly medical). I do 100 miles each way three weeks p/m, but then stick pretty close to home aside from that, so 1K may be a high estimate. But I definitely do those road trips 3X p/m.

Jacksonville area? we have a lot of ICE F150 in FL, I might can find you one.

 

[CerebralPrimate]

Worth noting that Comma does not do media / influencer review units so all units have been purchased (including myself), though someone could buy and return within 30 days if they really wanted to.

That's actually really good to know. When I see videos where someone is supposedly reviewing a product that has a non-trivial value, and I know they got theirs for free, it always makes me question just how honest they are being... or when they are a bigger channel and they likely have some kind of pricey affiliate agreement.

So yeah, good to know any videos I find of the Comma 3X product are from people who actually had enough interest to spend their own cash.

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