These instructions apply to the Polestar 2 (2021-2024).
For other models, please choose your vehicle here.
If the one-touch (auto up/down) function on your Polestar 2 (2021–2024) 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.
Owners often meet this right after a jump-start or a 12 V service, and assume the switch or motor has failed. It hasn’t. The glass still moves while you hold the switch; it’s only the convenient one-press auto travel that’s dropped out, and re-teaching each window brings it straight back.
How It Works on This Model
Like other cars, the Polestar 2 runs its 12 V accessory system separately from the high-voltage traction battery, and it’s that 12 V supply the window modules depend on. Each door motor 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 power — a disconnect, a flat 12 V battery, or a jump-start — and that stored range is lost until you teach it again.
First, a Few Checks
- Sit inside with the door closed so the glass reaches its true top seal.
- Power the car on (foot off the brake) so the electrics are live but the car isn’t in drive.
- Confirm the 12 V battery is charged; if it was flat enough to wipe the calibration, sort that first.
- Clear anything from the window channel — ice, a sunshade, trim clips.
- Work one window at a time from that door’s 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 brief tap doesn’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 state of charge. A tired 12 V that keeps sagging will let the calibration fail again on the next power cycle.
- Do the door with the door shut, not open, so the glass seats correctly at the top.
- 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.
Once It’s Done
Once each window has re-learned its travel, a light press of the switch runs the glass all the way up or down on its own, 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 Polestar 2 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 have anything to do with it?
No. The windows run off the separate 12 V accessory system, so it’s a 12 V disconnect, flat 12 V battery or jump-start that triggers the loss — not the high-voltage drive battery. Re-teaching is the same simple switch procedure regardless.
Do I need a tool?
No. It’s done entirely with the window switches while the car is powered on — no scan tool, no app, no visit to a technician 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 doesn’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 down near the top?
That’s the anti-pinch reacting because the travel isn’t learned yet. Finish the full up–down–up cycle, holding firmly at the top, and the glass will seal cleanly instead of reversing. If it keeps bouncing, run the sequence again with the door shut.
If you’ve just reconnected the battery, see our Polestar 2 12V battery guide. For a stored fault, decode it on autodtcs.com.
Independent guide — not affiliated with Polestar. Always follow your official service manual and safety precautions. Read our full disclaimer.