These instructions apply to the Hyundai i30 Mk2 (GD) 2012-2017.
For other models, please choose your vehicle here.
If the electric sunroof on your Hyundai i30 Mk2 (GD, 2012–2017) has stopped opening or closing properly, stops part-way, or lost its one-touch function, the roof controller needs re-initialising. It usually happens after the battery is disconnected or goes flat, after a fuse is pulled, or if the roof was forced. The fix is a quick relearn you can do yourself with the roof switch, no tools.
Why the Sunroof Loses Its Calibration
The roof module stores the fully-open and fully-closed positions so it can run automatically and stop if it meets resistance (anti-trap). A power loss clears those references, so until you re-teach them the roof only moves while you hold the switch.
Before You Begin
- Make sure the battery is well charged — the relearn won’t complete on a weak battery.
- Clear the roof and tracks of debris so the glass can reach its end stops.
- Keep hands and objects clear of the opening — the anti-trap protection is off during the relearn.
How to Re-initialise the i30 Sunroof
- Start the engine (the relearn wants a solid power supply).
- Press and hold the switch until the sunroof is fully closed, then release.
- Press and hold the close switch for about 10 seconds. The sunroof moves to fully closed, then moves slightly back.
- Within 3 seconds, press and hold the close switch again. The roof runs a full automatic cycle: tilt down → slide open → slide close.
- When the cycle finishes the procedure is complete. Check the one-touch open and close.
The 3-second window between the two holds matters — if you miss it, start again from the closed position.
If the Sunroof Still Won’t Auto-Operate
- You missed the 3-second window or released early: repeat the two-stage hold and let the cycle finish.
- Weak battery: charge it and try again.
- Dirty or dry tracks: clean the channels and apply silicone lubricant.
- Just did a battery job: expected — see our i30 battery disconnect/reconnect guide.
Frequently Asked Questions
Do I need a diagnostic tool to reset the i30 sunroof?
No — the relearn is done entirely with the roof switch as described.
Why are there two holds in the procedure?
The first hold confirms the closed position; the second (within 3 seconds) triggers the automatic tilt/slide cycle that re-teaches the end stops.
Why did the sunroof stop working after I changed the battery?
The roof module loses its references during a power loss. Run the relearn and full function returns.
Is the anti-trap working during the relearn?
No — keep hands and objects clear of the opening while teaching the end stops.
If you also lost the windows after a power cut, see our i30 electric window reinitialisation guide, or clear a reminder with the i30 Mk2 service indicator reset guide.
Independent guide — not affiliated with Hyundai. Always follow your official service manual and safety precautions. Read our full disclaimer.