Who this is for
Owners of 2024-2026 Hyundai, Kia or Genesis cars who accept running unfinished software.
comma four
sunnypilotMake my car workAdvanced
sunnypilot for 2025-2026 Hyundai, Kia and Genesis (angle steering)
Newer cars like the Ioniq 9, EV9 and 2026 Sportage can run a test branch of sunnypilot, but it is unfinished and changes often.
This is a live community thread The work is still moving. Read the newest posts before you follow older steps.
You need
- A comma four
- The harness letter listed for your car in the thread
- Time to read the whole thread and share routes
In plain words
Why this guide matters
From 2024, many Hyundai, Kia and Genesis cars switched to angle-based steering that stock openpilot cannot drive. The sunnypilot hkg-angle-steering-2025 branch is where the Ioniq 9, EV9, GV80 and 2026 Sportage are being made to work. This thread lists the harness for each car, the branches and the rules for testers.
The short version
What the full guide walks you through
Read the disclaimer and decide if you are comfortable with test software.
Check the hardware list for your car's harness letter.
Pick the prebuilt branch for stability or the development branch for newest changes.
Install with the branch URL and set your car in the settings.
Report back with preserved routes so the team can tune it.
Before you start
- This is unfinished development work and can change or break at any time.
- Not officially supported by comma or by sunnypilot's stable release.
- If you are unsure, the team says return the hardware to comma.
The full community thread belongs to sunnypilot. Checked on September 10, 2026. Their last update was September 9, 2026.
Quick answers
Questions people ask
Which cars are on the angle-steering list?
Santa Fe Hybrid 2024-25, Ioniq 5 2025-26, Ioniq 9, Sportage Hybrid 2026, EV6 2025, EV9 2025-26, GV70 Electrified 2026 and GV80 2025-26. The list is from the April 2026 update and grows.
Is this software safe?
The team calls it unstable development software and says to return the hardware if you are not comfortable. Nothing is officially supported.
Which device do I need?
A comma four; the thread names it as the supported device. Speak to the community before buying for a car not listed.
Check your car
Cars this guide talks about
Support changes by year and trim. Open your exact car before you buy anything.
Related
More guides like this
All community guidesNot sure this is your path?
Check your exact car first, then choose software and hardware.
Photos: comma.ai. Guide content belongs to sunnypilot. CommaGuide is an independent guide and is not affiliated with comma.ai or sunnypilot.
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