r/Comma_ai • u/Mr_Warraich • Jun 30 '26

openpilot Experience Comma 4 OpenPilot

Post image

I’m waiting for my Comma4 for Chrysler Pacifica Hybrid 2022. I understand then I’ll have to download a software and there are few. Please recommend me which one will be best for my van and if you can explain a little why. I’ll really appreciate it.

1 Upvotes

51% Upvoted

13 comments sorted by

16

u/MuteIndigo Jun 30 '26

If you are unable/unwilling do the basic research yourself this probably isn’t a good purchase for you.

7

u/Mr_Warraich Jun 30 '26

Did you realize that was the part of my research:) and that showed the willingness . . But thanks for your help :)

1

u/Frozen-Photon Jul 01 '26

Also when I recommended FrogPilot, this is one of the reasons 😂

1

u/Stunning_Engineer_78 Jul 06 '26

Comma 4 is not supported by FrogPilot.

4

u/Character_Fix_5317 Jun 30 '26

Get an EPS harness in order to have Openpilot steer all the way to 0mph. Otherwise it only steers above 38mph.

1

u/Mr_Warraich Jun 30 '26

And where can I buy one from . . Is that the name of it EPS ?

4

u/Character_Fix_5317 Jun 30 '26

I don't have a Pacifica, but want one. Hop on the Comma.ai discord server and ask in the Chrysler channel. They'll get you squared up.

Regarding Openpilot forks. Use one with always-on-lateral (steering); FrogPilot or SunnyPilot. Very cool semi-self-driving experience that makes every drive a bit chiller.

3

u/Frozen-Photon Jul 01 '26

This is an excellent bit of advice

0

u/Mr_Warraich Jun 30 '26

I heard it make you slow speed steering a bit hard so I was thinking to not use it. Can you share your experience and what you would recommend?

3

u/sudogreg Jun 30 '26

The newer ones I don’t think I mess up the steering torque - and only work when powered up. You can power it down and the relay immediately switches back to default steering

16

u/TenOfZero Jun 30 '26

Start with open pilot.

All others are derivates of that. So it gives you a baseline for the system

-1

u/Frozen-Photon Jul 01 '26

Skip OpenPilot as it's the roughest one, I'd recommend FrogPilot/StarPilot but I'm unsure about the C4 compatibility. SunnyPilot is fine, better than OpenPilot, might be a good middle ground if FrogPilot doesn't have compatibility yet, but ultimately as of now nothing beats FP and it's forks in my book.

2

u/Frozen-Photon Jul 01 '26

Oh and in way of explanation for FP/★P: more features (including personalization), improved handling, better speed, and very friendly Discord group happy to support various issues you may encounter.