These instructions apply to the Maxus Euniq 5 (2020-2024).
For other models, please choose your vehicle here.
If the one-touch (auto up/down) function on your Maxus Euniq 5 (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.
On this electric MPV it’s an easy thing to misread as a fault, especially just after a 12 V service or a jump-start. The switches still raise and lower the glass normally; only the one-press auto travel has dropped out, and teaching each window its range again restores it in about a minute.
How It Works on This Model
The Euniq 5’s window motors run off the 12 V accessory system, which is separate from the high-voltage drive battery. Each door module stores the fully-closed and fully-open positions so one-touch knows when to stop and the anti-pinch can sense an obstruction and reverse. Interrupt the 12 V supply — a disconnect, a flat 12 V battery or a jump-start — and those stored limits are lost, leaving only hold-to-move operation until you re-teach them.
Before You Begin
- Sit inside with the door closed so the glass can reach its true top seal.
- Power the car on so the electrics are live, engine/drive off.
- Make sure the 12 V battery is charged; if it was flat enough to wipe the calibration, deal with that first.
- Clear the window channel of ice, leaves or a sunshade so the glass seats fully.
- Work one window at a time from that door’s own switch.
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 Won’t Stay Set
- Hold at each limit for the full couple of seconds; a quick tap won’t let the module register the end-stop.
- Complete the up–down–up cycle in one go, without releasing early, so both limits are stored.
- Re-seat the 12 V battery connections if you’ve just done battery work — a loose earth drops voltage mid-learn.
- Check the 12 V battery’s charge. A weak 12 V that keeps sagging will let the calibration fail again on the next power cycle.
- Check the window fuse if a single window is completely dead rather than just missing auto.
- Run the sequence a second time — the first pass sometimes only takes on one direction.
- If a window still only moves while held, a motor or switch fault can store a code — look it up on autodtcs.com.
After the Reset
Once each window has re-learned its travel, a light press of the switch runs the glass all the way up or down by itself, and the anti-pinch reverses if it meets resistance near the top. The calibration then holds normally — you’ll only repeat this the next time the 12 V battery is disconnected or goes flat.
Frequently Asked Questions
Why did my Euniq 5 windows stop auto-closing?
Disconnecting or flattening the 12 V battery wipes each window’s stored travel, so the module no longer knows where the top of the frame is. The glass still moves while you hold the switch, but one-touch and anti-pinch stay off until you re-initialise each window.
Does the traction battery affect this?
No. The windows draw on the separate 12 V accessory system, so it’s a 12 V disconnect, flat 12 V battery or jump-start that causes the loss — not the high-voltage drive battery. The fix is the same simple switch procedure either way.
Do I need a tool?
No — it’s done with the window switches alone while the car is powered on. There’s no scan tool, app step or garage visit needed for this routine re-initialisation.
Do I have to do all the windows?
Yes — each window is calibrated separately, so re-teach any that only move while held. Doing one door won’t restore auto on the others; repeat the same hold-at-each-limit cycle from each door’s own switch.
What does holding at the limit do?
It lets the motor stall briefly against the end-stop so the module can log that exact fully-closed or fully-open point. With both limits stored, one-touch runs the full travel and the anti-pinch has a reference to detect a trapped object and reverse.
Why does the window bounce back near the top?
That’s the anti-pinch reacting while the travel is unlearned. Finish the full up–down–up cycle, holding firmly at the top with the door shut, and the glass will seal cleanly instead of reversing. If it keeps bouncing, run the sequence once more.
If the windows still won’t calibrate, decode any stored code on autodtcs.com.
Independent guide — not affiliated with Maxus. Always follow your official service manual and safety precautions. Read our full disclaimer.