Re-initialise the Power Windows

Last updated: June 6, 2026

Lost the one-touch (auto up/down) on your Fiat 500X (334, 2015–present) after a flat or disconnected battery? The window motor has simply forgotten its limits. You re-teach them by hand in under a minute — no tools.

What Happened

The module stores the fully-closed position so one-touch can stop neatly and the anti-trap can react. Cut the power and that memory clears, leaving hold-to-move only.

Re-teaching a Window

1. Sit at the affected door with the ignition on.
2. Press and hold the close switch until the window is fully closed, then keep holding for 3 seconds and release.
3. Press and hold the open switch until the window is fully open, hold for 3 seconds and release.
4. Check one-touch now works both up and down.

Repeat on each one-touch window from its own switch.

Not Working Yet?

• Hold the full 3 seconds at each end so the limits register.
• Make sure the 12 V battery is healthy during the learn.

Frequently Asked Questions

Why did my 500X windows stop auto-closing?

A battery disconnect or flat battery cleared the learned travel; re-initialise to bring one-touch back.

How do I reset the auto window on a Fiat 500X?

Hold the close switch until fully closed and 3 seconds more, then hold the open switch until fully open and 3 seconds more.

Every window?

Just the one-touch ones, each from its own switch.

Any tools?

None — it’s all done at the switches.

This is the most-missed step after battery work — see our 500X battery guide. For warning lights, look up the code on autodtcs.com.