These instructions apply to the Kia Stonic Mk1 (YB) 2017-Present.
For other models, please choose your vehicle here.
If the one-touch (auto up/down) windows stop working on your Kia Stonic (YB, 2017–present) — usually after a flat or disconnected battery — the window motor has lost its learned end-stops and anti-pinch reference. Re-teaching it takes seconds per door, no tools. This is a completely normal side-effect of losing 12V power, not a fault with the switch or the motor, and it is something you can put right yourself in the driveway.
Why It Happens
The window controller remembers the fully-closed position so one-touch can stop correctly and the safety auto-reverse can work. A power interruption clears that memory, leaving only hold-to-move operation.
How It Works on the Stonic
Each door with an auto window has its own small control module that counts the motor’s rotation to know exactly where the glass is. That stored position is what lets a single tap run the window all the way up or down, and it is also what the anti-pinch uses to sense unusual resistance and reverse. When the 12V supply is cut — a dead battery, a disconnect for other work, or a blown fuse — the count is lost. The window still moves manually because that is a direct switch input, but the “clever” behaviour stays off until the module relearns its top and bottom limits.
Getting Ready
- Make sure the battery is fully charged and reconnected — a weak battery can make the learn fail part-way.
- Sit inside with the door closed so the glass runs in its normal frame.
- Turn the ignition on (engine running is fine and keeps voltage steady).
- Clear anything from the window path and check the rubber runners are free of grit.
- Do one window at a time from that door’s own switch.
How to Re-initialise a Window
- Sit in the car with the door closed and the ignition on.
- Pull the switch up to fully close the window and keep holding for about 2–3 seconds after it stops.
- Release, then push the switch down to fully open and hold a moment at the bottom.
- Pull up again to fully close and hold for a couple of seconds at the top.
- Release and test one-touch up and down — it should now run on its own.
Repeat for each affected window using its own switch.
If One-Touch Still Doesn’t Work
- Hold a little longer at the fully-closed stop — the controller needs a clear moment at the top limit to register it.
- Make sure the door is shut and the battery is healthy during the learn.
- Repeat the full cycle two or three times — the first pass sometimes only half-takes.
- Check the window fuse if a window won’t move at all; a blown fuse stops the learn completely.
- Watch for glass that stops short of the top — worn runners or grit can prevent it reaching the true limit it needs to store.
- If one window never relearns while others do, the fault is likely that door’s switch or motor, not the procedure.
What Happens Next
Once the limits are stored, a single tap up or down should run the glass fully in that direction, and the anti-pinch auto-reverse comes back with it. The setting is permanent until the next time power is lost, so you should not have to repeat it unless the battery is disconnected again. Do the front pair first, then any auto rear windows.
Frequently Asked Questions
Why did my Stonic windows stop going up automatically?
A battery disconnect or flat battery wiped the learned end positions, so the module no longer knows where the top is. One-touch and the anti-pinch auto-reverse switch off as a safety default, leaving only hold-to-move operation. Re-initialising each window from its own switch restores the automatic function within a few seconds.
How do I reset the auto window on a Kia Stonic?
Hold the switch up to fully close and keep holding 2–3 seconds; if needed, fully open and fully close again, holding at the top. That brief pause at each end stop is what lets the controller record the limits, so do not rush the last part of the travel.
Do I have to do every window?
Only the ones with one-touch. On many Stonics that is the driver’s window, and on higher trims the front passenger and rear windows too. Re-teach each affected window from its own switch — the driver’s master panel and each door switch each control their own motor for this.
Do I need a tool?
No — it’s done entirely from the window switches with the ignition on. There is no menu, no scan tool and no fuse to pull. If a window still refuses to relearn after several clean attempts, that points to a fuse, switch or motor issue rather than anything you can set by hand.
Is it safe to keep using the window before I re-initialise it?
Yes. The window still raises and lowers while you hold the switch, so it is usable. What you lose is the single-tap convenience and, more importantly, the auto-reverse anti-pinch. Because that safety feature is off until you relearn, take extra care that fingers and objects are clear while raising the glass.
Could a blown fuse be the real cause?
It can. If a window will not move at all — not even hold-to-move — suspect the window circuit fuse rather than a lost position. Check and replace it, then run the re-initialise routine. If the glass moves manually but simply won’t auto, the cause is the wiped memory and the relearn is all you need.
This is the step most owners miss after battery work — see our Stonic battery guide. For warning lights, look up the code on autodtcs.com.
Independent guide — not affiliated with Kia. Always follow your official service manual and safety precautions. Read our full disclaimer.