Reinitialise the Electric Windows

If the one-touch (auto up/down) windows stop working on your Hyundai Santa Fe Mk4 (TM, 2018–2023) — 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.

The Santa Fe’s front windows — and often the rears — have an express one-touch mode: a single tap runs the glass fully up or down without holding the switch. Paired with that is anti-pinch, a safety feature that reverses the window if something is trapped as it closes. Both rely on the door module knowing the exact fully-closed point. Losing that reference after a power interruption is completely normal on this generation and is not a sign of a broken motor or switch; the fix is to teach the limit back in, which takes only a few seconds per door.

How It Works on This Model

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. Because the module compares motor effort against the learned travel, an unlearned window may also creep up a short way and then stop or drop back — that is the anti-pinch logic acting without a valid reference, not a mechanical fault.

Before You Start

• Sit in the car with the door closed so the glass reaches its true top.
• Turn the ignition on (engine running is not required).
• Do one window at a time from that door’s own switch.
• Keep hands and objects clear of the glass path while it runs.
• If the battery was just reconnected, confirm it is charged and holding before you begin.

How to Re-initialise a Window

1. Sit in the car with the door closed and the ignition on.
2. Pull the switch up to fully close the window and keep holding for about 2–3 seconds after it stops.
3. Release, then push the switch down to fully open and hold a moment at the bottom.
4. Pull up again to fully close and hold for a couple of seconds at the top.
5. 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 to register the top limit.
• Make sure the door is shut and the battery is healthy during the learn.
• Run the whole up-down-up cycle again — a single pass sometimes only part-teaches the stops.
• Check the relevant window fuse if one switch is completely dead rather than just un-learned.
• Look for a window that stops short of the top — a dirty channel or tired seal can prevent it reaching the true closed point.
• Try each rear door from its own switch, not the driver’s master panel, if a rear window won’t take the learn.
• A persistent failure after a good learn attempt can mean a worn regulator or switch — any stored fault can be checked on autodtcs.com.

What to Expect After

With the limits relearned, a single tap should send the window fully up or down on its own, and the anti-pinch auto-reverse is active again. The learned position is stored, so it stays set for the life of the battery connection — you should not need to repeat it unless the 12 V supply is disconnected or goes flat once more.

Frequently Asked Questions

Why did my Santa Fe windows stop going up automatically?

A battery disconnect or a flat battery wiped the learned fully-closed position, so the door module falls back to hold-to-move only. The glass still works while you hold the switch, but express one-touch and anti-pinch stay off until you re-initialise the window with the short hold routine.

How do I reset the auto window on a Hyundai Santa Fe?

With the ignition on and the door shut, hold the switch up to fully close and keep holding 2–3 seconds; if needed, fully open and then fully close again, holding at the top. That re-teaches the end limits so one-touch and anti-pinch return. Repeat on each affected door from its own switch.

Do I have to do every window?

Only the ones with one-touch that have lost it. If just the driver’s window is affected, re-teach that one. Where the passenger and rear windows also have express operation and dropped it after the power loss, run the same routine at each of those switches.

Do I need a tool?

No — it is done entirely from the window switches. There is no dashboard menu, code, or diagnostic scanner needed for the basic re-initialise; you only need the ignition on and a few seconds at each door.

The window rises a little then stops or drops — is it broken?

Usually not. With no learned top limit the anti-pinch system treats the travel as an obstruction and halts or reverses the glass. Completing the full up-down-up hold routine gives the module a valid closed position, after which the window runs to the top normally.

It worked, then lost one-touch again — why?

Something interrupted the 12 V supply again — a weak battery that dropped out overnight, a loose terminal, or more battery or fuse work. Fix the supply issue, then re-run the learn. If the battery is aging and repeatedly goes flat, that root cause is worth sorting first.

This is the step most owners miss after battery work — see our Santa Fe battery guide. For warning lights, look up the code on autodtcs.com.