These instructions apply to the Aiways U5 (2020-2024).
For other models, please choose your vehicle here.
If the one-touch (auto up/down) function on your Aiways U5 (2020–2024) has stopped working — usually after the 12 V battery was disconnected or went flat — the windows just need re-initialising. It’s a quick job with no tools.
What Happened
The Aiways U5 is an electric SUV, but its windows still run off the small 12 V battery rather than the main drive pack. Each door’s window module stores the exact fully-closed position, and it uses that stored point so a one-touch lift can stop cleanly at the seal and so the anti-trap (anti-pinch) can tell the top of travel apart from an obstruction. When the 12 V battery is disconnected or goes flat, that stored value is wiped. The glass still moves up and down while you hold the switch — the motor and switch are fine — but one-touch and auto-reverse stay off until each window has been run to both stops again and re-learned.
When You Need This
- After disconnecting or replacing the 12 V battery.
- If a window only moves while you hold the switch and won’t auto-close or auto-open.
Before You Start
- Power the car on so the window circuits are live throughout the learn.
- Keep the door closed so the glass reaches the seal and logs its true closed point.
- Make sure the 12 V battery is healthy — a weak one can sag mid-run and spoil the calibration.
- Clear the glass path of any charging cable, ice or shade that could stall it.
- Do the windows one at a time, since each is calibrated separately.
Re-initialising Each Window
- Power the car on and close the door.
- Raise the window fully with the switch and keep holding for a couple of seconds after it stops.
- Lower the window fully and keep holding for a couple of seconds after it stops.
- Raise it fully again — one-touch should now work. Repeat for each window.
If It Still Won’t Work
- Hold at each limit for the full couple of seconds so the module logs both the top and bottom of travel.
- Redo the whole up-down-up cycle from the start; a half-finished learn can leave the window worse than before.
- Re-seat the 12 V battery connections if you’ve just done battery work — a loose or dirty terminal drops voltage mid-run.
- Use the switch in that door rather than reaching across, and shut the door fully so the glass seats.
- A motor or switch fault can store a code — look it up on autodtcs.com.
What to Expect After
Once the up-down-up cycle finishes on a window, one-touch returns straight away — a single tap runs the glass the full way, and the anti-trap will reverse it down if it meets resistance climbing. There is no ignition cycle or waiting period. It is worth testing the anti-pinch gently with the flat of your hand near the top before you rely on it, so you know it is reacting on every door you’ve just re-taught.
Frequently Asked Questions
Why did my Aiways U5 windows stop auto-closing?
Disconnecting or flattening the 12 V battery wipes the window calibration each door module stores. The motor is fine, but one-touch and anti-trap switch off until the glass has been run to both limits again. Re-initialise each window with the up-down-up cycle to bring the function back.
Do I need a tool?
No — it’s done with the window switches alone. There is no touchscreen menu to enter and no diagnostic tester required. If a window still won’t relearn after a couple of clean attempts, that suggests a motor, regulator or switch fault rather than a calibration you can set at the switch.
Do I have to do all the windows?
Yes — each window is calibrated separately, so any window that lost its one-touch after the battery work needs its own up-down-up cycle. Doing them one at a time from their own switch keeps it simple and lets you confirm each one is auto-closing again before you move on.
What does holding at the limit do?
It teaches the module the full travel — the exact top and bottom of the glass’s range — restoring one-touch and anti-trap operation. Without those reference points the module can’t judge when the window has genuinely closed, which is why it disables auto operation and reverts to hold-to-move.
Does the main EV battery affect this?
No. The windows run off the 12 V system, so it is a flat or disconnected 12 V battery that wipes the calibration, not the high-voltage drive pack. That is why the U5 behaves just like a petrol car here — the fix is the same manual window relearn at each switch.
Could this happen again?
Yes. Any time the 12 V battery is disconnected or goes flat — a battery swap, a deep discharge, or electrical work — the windows can lose their one-touch. It is normal and harmless; you simply run the same quick relearn afterwards. Doing it right after battery work saves confusion later over why the glass won’t auto-close.
If the windows still won’t calibrate, decode any stored code on autodtcs.com.
Independent guide — not affiliated with Aiways. Always follow your official service manual and safety precautions. Read our full disclaimer.