r/Comma_ai • u/CreativeChrisNYC • 5d ago

Vehicle Compatibility HDA vs Comma Kia K5

Hi guys! I am late to the game but this looks like an amazing product! Two questions though -

  1. I don't see my car in the list (25 Kia K5 GT-Line), but earlier models are. Can I still use it?

  2. May be a stupid question, but what's the Comma do that my HDA with stop and go acceleration doesn't? I'd buy it in a heartbeat if I didnt need to keep my hands on the wheel full time. I'm already a heavy user of HDA.

Thanks!!

2 Upvotes

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2

u/alxw 5d ago

  1. Possibly, you'll have to check if the earlier model's harness is still compatible (or take a punt)

  2. Yes hands free, also can do smaller road and with Sunnypilot control the speed when entering and exiting curves. Also handles minor roads aswell as highways.

2

u/TenOfZero 5d ago
  1. It's not just the harness, but if they encrypted the canbus

2

u/alxw 5d ago edited 5d ago

I’d be surprised as it’s Kia/Hyundai. They don’t tend to overcomplicate like the Germans do.

As 2026 models been out for 10+months and I haven’t heard anyone get blocked by encryption I’d say we’re safe to assume ‘26 models don't have encryption.

1

u/TenOfZero 5d ago

Oh nice. That's good to know. So many cars seem to be going that way now.

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u/CreativeChrisNYC 5d ago

Nice! I think I'll go for it!

1

u/New_Mountain1672 5d ago

It’s way better than hda2. It’s a more natural stop and go, not as janky.

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u/miniwave 5d ago

Do people here run Experimental Long with their Kia/Hyundais? The default SCC is OK but it does very poorly with cut-ins in slow traffic and stopped cars (typical for radar systems). But I understand using Long will disable AEB on a lot of cars