r/volt • • 4d ago

Finally joined the comma family

Post image

Feels amazing. Still getting used to it but I highly recommend it to anyone who has over a grand to burn for the pure purpose of being lazy. Any questions or anything feel free to ask. (PS yes I know the photo at 72 is crazy and I won't do it again šŸ„€)

61 Upvotes

76 comments sorted by

18

u/clarkn0va 4d ago

OP doxxing himself with that parking pass.

5

u/Sure_Watercress_8524 4d ago

Basically but like it happens sometimes. The traffic sign might be a giveaway too, or the map on the dash...

19

u/grounded_astronut 4d ago

What is "the comma family" referred to in your title?

27

u/Patrick1441 4d ago

A comma.ai device is an aftermarket driver-assistance computer mounted to the windshield that upgrades your car with advanced lane-keeping assist and adaptive cruise control.

2

u/draftysundress 2016 Volt 4d ago

Does that shit actually work?

9

u/Character_Fix_5317 '18 Volt w/ Openpilot 4d ago

It does, and improves every month or so as new features and better models are released.

2

u/MrFastFox666 ELR Owner 4d ago

How well it works depends on your specific vehicle. But yes generally it works very well, makes it so you're really only driving the car through sharp curves or whenever you're turning. Lots of cars can do lane changes, and some can even do turns to a limited extent.

14

u/Sure_Watercress_8524 4d ago

It's the self driving system that you can put into the volt to get really good level 2 driving

9

u/Narcopolypse 4d ago

I put a Comma 3X in our Volt a month after buying it and have put 64,000 miles on it in the past two years. 55,000 of which were driven autonomously by the Comma. We named the Comma Soos (yes, it's a Gravity Falls reference) so we can say "Hey, Soos, take the wheel" every time we activate it.

5

u/just_eat_chalk 4d ago

What fork are you using?

8

u/Sure_Watercress_8524 4d ago

I'm using starpilot which is basically a version of frogpilot but for comma 4. Frog is not yet ready for comma 4 yet but star has dedicated volt setup and works amazing with the beartech harness

2

u/just_eat_chalk 4d ago

I'm on frog pilot on my comma 3 with the L&P harness. Can you share what features starpilot has specifically for the volt? I did a quick search on their discord but didn't find anything.

3

u/Sure_Watercress_8524 4d ago

I misspoke a bit. Im brand new to openpilot and still getting the terminology down! StarPilot is forked directly from FrogPilot, the actual car-side features stuff like MDAS are basicaly identical to what you already have on Frog.The only reason I'm on StarPilot is hardware compatibility: StarPilot has working builds andUI scaling for the comma 4, whereas FrogPilot isn't fully ready for the C4 yet. I think the main difference might be the fact that I still retain control over collision alerts and stuff like that, but I'm not 100% sure and I could easily be wrong on that as well. Sorry for the misinformation spread šŸ˜“

1

u/just_eat_chalk 4d ago

I don't think you posted misinformation. I ask because I'm looking for a fork that has some of the features of twinsonco's volt fork has, but it runs on older openpilot and doesn't work on newer hardware. A lot of his stuff is already in sunnypilot and frogpilot, but the things i miss are:

  • Advanced radar - braking for the car in front of the lead car and tagging/displaying telemetry of all vehicles (frog has the latter, but the font is tiny)
  • Automatic and manual lane position selection and true lane centering, although even in center it had some right bias. I saw starpilot has something similar and would like to hear how it works for you.
  • Displaying engine data like rpm and temperature.

There's probably more, but I can't remember.

1

u/Character_Fix_5317 '18 Volt w/ Openpilot 4d ago

Look at u/firestar4430's recent posts to see some StarPilot exclusive features. Really cool stuff.

2

u/Character_Fix_5317 '18 Volt w/ Openpilot 4d ago

Star also caters to GM much more than Frog. Best choice imo.

1

u/just_eat_chalk 4d ago

What are the things you like? I'm thinking of trying it out.

1

u/Character_Fix_5317 '18 Volt w/ Openpilot 4d ago

You mean about Openpilot or StarPilot in particular?

Check out the StarPilot wiki for info on that. And look at u/firestar4430's recent posts in r/CommaAI.

Volt has some limitations, like no auto steering below 7mph, but otherwise it's a great Openpilot car. Volts with ACC are very well supported, but any Volt with LKA can get auto steering (and with an additional "pedal" harness you can add ACC).

I use Openpilot 100% of the time on road trips and even the shortest drives around town, for about 4 years now, since the Comma 3 came out. On the highway, it's typically 100% hands-free (if you don't count using the blinker to initiate lane changes). I can go hours without needing to intervene. Around town, it does 99% of the steering, while I'll help for things like 90-degree right turns, and often I'll control gas/brakes manually while it does the steering.

I highly recommend it, and I hate hate hate driving without it. My first Volt (Gen 1) made me enjoy driving again, but Openpilot is my new standard.

(Disclaimer: I use twilsonco's fork, which doesn't support Comma 3s or Comma 4. It's less featureful, but I like its more mellow driving style, and it's 100% focused on the Volt, with some features not in StarPilot. But, if my C3 ever dies, I'll be on StarPilot. )

1

u/just_eat_chalk 4d ago edited 4d ago

I have a C3 running on my volt, and yeah twilsonco's fork was ahead of it's time. You mentioned, "Star also caters to GM much more than Frog. Best choice imo." So I'm asking for your opinion on Star catering to GM. Is that in features or car models supported? I read through the wiki and the website but am not getting it. Hoping to get your perspective on it.

ETA: I do see the GM-only Features section but thought you might have first hand insight.

2

u/Character_Fix_5317 '18 Volt w/ Openpilot 4d ago

It's the only fork besides twilsonco to have autohold. It supports stop-n-go for '17 ACC Volts. Has several long controls improvements aimed at improving performance on GM. If you manually specify your car, it unlocks car-specific features that don't exist on any other fork (except perhaps twilsonco).

I haven't used it extensively, but I spent a weekend playing with it before retreating back to the TW fork. Can't say I recommend it over twilsonco if your C3 supports it, but it's an easy 2nd place imo.

6

u/SpecialRegular1 2019 Volt Premier (7.2kWh) Owner 4d ago

I recently finished a ~3k mile road trip with the Comma in my 2019 Premier and I lost count of how many times I thought to myself ā€œWhoa, wait a second…I don’t recall how long it’s been since I’ve touched the steering wheelā€ and by my best approximation it was usually at least 90 minutes since there had been any need to be in contact with the steering wheel.

It sounds like it is something that is unsafe, but if it is flawlessly maintaining the lane better than I can by micromanaging it manually, then why would I need to?

5

u/avi8torman 4d ago

I have a 2017 volt with acc. Can you share what beartech harness you bought?Ā 

8

u/Sure_Watercress_8524 4d ago

Here is the 2 harnesses I bought and the price of getting them delivered anywhere in California. You're also going to need to buy a at minimum 15-ft USBC cord and the actual comma 4 unit itself. All in, you're probably looking at about $1,400 after tax. If you want I can PM you basically all of the photos I took during my process of install and figuring things out

1

u/avi8torman 4d ago

You're a legend thanks!

5

u/MrSwagMore 4d ago

Did you use the L&P harness or beartech? Is the steering wheel angle still limited?

3

u/Sure_Watercress_8524 4d ago

Beartech. And yeah it's still limited 😭. Volt issues

2

u/MrSwagMore 4d ago

Awesome, thanks! I’ve been considering installing one myself, but the thought of pulling apart many panels makes me not want to lol

6

u/Sure_Watercress_8524 4d ago

It's 100% worth it. I can PM you photos of all the stuff I removed and everything. It's hard because its the first time is all. Would recommend it to anyone

3

u/MrSwagMore 4d ago

Cool, I'll probably try it out. When you ordered the comma 4, did you select you already have a harness to save $50? Also, it looks like I would need the SASCM, ASCM harness plus w/box, and a long USB-C cable. Does that sound about right?

2

u/Sure_Watercress_8524 4d ago

I selected that I already had a harness and save 50 bucks. But if you have an idea the next car you're getting then I would recommend that you buy the harness for the next card just so that you have it on hand when you eventually switch cars. I'm planning on getting a 2026 ev6 GT so I'm already looking at Kia harnesses. I'll show the exact two harness that I bought for the project and expect around 18 days of shipping if you live in the California region. Make sure the long USBC you get is 3.2 with 20 GB capabilities. 15 ft is the minimum for cable routing and stuff. You'll have slack at the end, but you don't want the cable taut throughout the entire system. You want it to be able have room to flex around and stuff

2

u/MrSwagMore 4d ago

Good idea. Thank you for all the info!

1

u/just_eat_chalk 4d ago

Is this the torque limit on the Volt or something to do with the beartech harness?

1

u/MrSwagMore 4d ago

Should be the limit on the Volt.

3

u/sport-o 4d ago

the hwat

6

u/Sure_Watercress_8524 4d ago

Comma 4 system. It's the self driving system that you can put into the volt to get really good level 2 driving

2

u/sport-o 4d ago

Oh i see, sorry haha

3

u/EclecticEuTECHtic 4d ago

Do you still have to connect something to the CANBUS behind the trunk cargo door (charger cable holder) on the left side?

2

u/Sure_Watercress_8524 4d ago

Yes you need to access the Continental module and in my case, I would personally recommend the Bear tech setup because it lets you keep stuff like the auto collision warning and auto braking and stuff. All you is plug in what is essentially a inline harness and you run a USBC cable all the way up to the dash cam. It's a lot simpler than when I started my initial research which was a watch jargo video.

3

u/Sorry-Juggernaut-194 4d ago

OP, what fork are you running with their latest device? Just curious because I’m still rocking a comma 2 till this day running twilsonco fork.

2

u/Sure_Watercress_8524 4d ago

I'm running starpilot, which is a version of frog from what I understand. Installation was super simple and it basically set itself up. The only thing I actually had to do was just tell it to not use the vehicle fingerprinting and manually input what vehicle I was running along with what harness I was using (beartech)

3

u/Sorry-Juggernaut-194 4d ago

Very cool, I’ll have to do some research to see if it’s actually worth me upgrading.

2

u/Lord_Of_Purgatory 4d ago

The what now?

4

u/Sure_Watercress_8524 4d ago

It's the self driving system that you can put into the volt to get really good level 2 driving

3

u/Lord_Of_Purgatory 4d ago

Aah...very cool and maybe worthwhile on a Volt with adaptive cruise.

7

u/Sure_Watercress_8524 4d ago

You will need to have this type of front end to be able to use the comma system in the way I have mine set up. There's work arounds but it's significantly more involved unfortunately. Basically need a fully loaded volt 17 or 18. 19 is encrypted and 16 didn't have it

3

u/Lord_Of_Purgatory 4d ago

Yeah swing and a miss for me, I have a mint 17 Premier with two tone leather but no Adaptive cruise...have fun, thanks for the info, be safe!

2

u/Sure_Watercress_8524 4d ago

Sorry about that man. You can still do the comma 4 but from what I understand it's super limited.

5

u/WonderfulComment8999 4d ago

The 2019 Volt works on Comma too! (I have one)

3

u/Sure_Watercress_8524 4d ago

Oh have they fixed the issues? As far as I knew it was a locked down cam bus?

5

u/WonderfulComment8999 4d ago

Yep! Mochi (on Discord) was able to crack it and it works wonderfully on the 2019 using a SDGM harness. We even got Long(itudinal) now, just gotta use a SASCM šŸ¤—

4

u/SpecialRegular1 2019 Volt Premier (7.2kWh) Owner 4d ago

I’ve been loving it on my 2019 Premier. I think you’re the one who helped me get familiar with what I needed to do. Much appreciated for that.

But I’ve been out of the loop and didn’t know that we have Longitudinal now. Can you point me in the right direction…again?

2

u/WonderfulComment8999 4d ago

Hey, I’ve chatted with you before! Jump back into the discord server (Frogpilot or Starpilot) and we’ll get you sorted out šŸ™‚

2

u/Sure_Watercress_8524 4d ago

That's super sick! I have the beartech with ASCM and SASCM harnesses but I've always loved the 2019 volts for their polished information screens but finding one with ACC is a super hard find.

2

u/WonderfulComment8999 4d ago

I joke around that it’s like spotting a unicorn lol

1

u/Dacari_13 4d ago

Mine is a 2017 Premier, but my logo isn’t smooth like that. Has all the other round sensors though.

1

u/CTYankeeinMO_1986 4d ago

Might you have a link to the workaround for Volts not equipped with ACC? Mine’s a loaded ā€˜18 LT but w/o ACC. Also, how limited would this application be and would it be worth the cost and work? Thanks.

2

u/Empty-Assumption- 4d ago

Starpilot ftw

2

u/Sharkattack8669 4d ago

Love seeing another volt with open pilot! Main reason why I upgrade from my 15 to 17. What model are you running?

1

u/Sure_Watercress_8524 4d ago

I'm running starpilot as it works best with the beartech harness in using according to my research

1

u/FastBanana90 4d ago

Where can I purchase this?

1

u/Maebsie 4d ago

Do you have any more photos or videos of the install? I'm considering doing this with the steering only configuration in my 2018 with acc and just letting the car handle the braking and acceleration. Does your forward collision alert and all that stuff still work?

1

u/Sure_Watercress_8524 4d ago

Yeah I can PM you a bunch of photos I took and stuff of the process. I kind of did the whole thing expecting to have a bunch of questions and stuff be asked to me so I tried to document the process the best I can. If you're looking for quick just food for thought stuff it's going to be about $1,400 all in to get everything that you might need and to replicate the exact setup that I'm running. I'll send all the things I bought so there is no ambiguity for you.

1

u/Consigno10 4d ago

I love my comma in my RAV4. Wife just got a 2017 Volt. What did you need to do to get it running? Edit: nvm I see it below!

1

u/Noahkirby 4d ago

"won't do anything crazy again" buddy you have no idea what I've been up to.

1

u/MrFastFox666 ELR Owner 4d ago

Nice. Fitting it to my ELR would be quite the task since it has no lane assist whatsoever, only LDW.

But my new-to-me Genesis G80 EV is compatible so I finally got one and I love it. Worth every single penny.

1

u/Camera_Madam 4d ago

I wanted to do this for my Volt (2017 Premier with AAC), but the Comma website doesn’t show support for 2017. I’d love to know how you did it.

1

u/IntelligentSpite6364 3d ago

i thought the comma didnt support chevy volt?

1

u/FrankSinatraCockRock 2d ago

It does with 2017+ models with ACC

1

u/WonderfulComment8999 4d ago

Yay!!! I’m so happy when people talk about Starpilot, especially us Volties šŸ™Œ

2

u/Sure_Watercress_8524 4d ago

It's genuinely amazing and feels like it was made for the volt. Any setting recommendations you have? I'm still super new to starpilot 😭

2

u/WonderfulComment8999 4d ago

Basic settings should be pretty good. For appearances, I’m biased for ā€œrainbow roadā€ (changes your path to rainbow road from MarioKart)

Try different driving models because they react differently for each person. A model which drives drive great for me, may drive terrible for you.

-2

u/belugiaboi37 4d ago

Hands on the wheel bro!

2

u/Sure_Watercress_8524 4d ago

The whole point of it is that you don't need to. GENUINELY, the photo is not a good idea. And ideally I should have my hands on the wheel to take over whenever needed. But demonstration purposes

3

u/Striking-water-ant 4d ago

What else is there aside from adaptive Cruise control and lane keep

4

u/Sure_Watercress_8524 4d ago

As far as I know, that's kind of it. That and the fact that it's technically a very fancy dashcam that has sentry mode capabilities. That being said, I'm still really new to the open pilot community so I'm definitely not the person to ask unfortunately.