Reset a Frozen Infotainment Screen

Last updated: June 12, 2026

If the touchscreen in your Kia Rio (Mk4, YB/FB, 2017–2023) has frozen, gone black, dropped Apple CarPlay or stopped responding to taps, you can force the head unit to reboot yourself in well under a minute — no tools and no garage visit.

Which system the Rio uses

The Mk4 Rio uses Kia’s floating Display Audio / UVO head unit — a 5-inch screen on early base cars, a 7-inch UVO touchscreen on most, and an 8-inch Kia Connect navigation screen on the 2020 facelift in higher trims. All are touch-operated with a single power/volume rotary knob on the left and hard shortcut keys alongside. When the screen freezes it is the head unit’s software locking up — engine, lights and climate are unaffected because only the display has stuck.

Soft reset (reboot) the screen

Park with the ignition on so the unit keeps power.

1. Find the power/volume knob on the left of the screen (push it in to mute).
2. Press and hold it in.
3. Keep holding for about 10 seconds until the screen goes black and the Kia logo returns.
4. Release the knob.
5. Allow 30–60 seconds for the home screen, radio and camera to come back.

Many Rios also have a small pinhole RESET on the bezel near the knob. Straighten a paperclip and press the recessed button for about 5 seconds until the screen blacks out — it does the same reboot as the knob-hold.

Safe — it loses no data

This reboot is harmless. It does not delete radio presets, paired phones, Bluetooth pairings or settings — the unit simply reloads its software. Repeat whenever you need to.

If it stays frozen

• Hold longer. If 10 seconds did nothing, retry for a full 20–30 seconds.
• Cycle the ignition. Switch off, open the driver’s door, lock the car, wait a couple of minutes for the unit to sleep, then unlock and restart.
• Suspect CarPlay/Android Auto. Rio freezes often coincide with the phone link — unplug, swap to a known-good USB cable, delete the pairing on both devices and re-pair.
• Disconnect the battery. As a last resort, disconnect the negative (−) terminal for 10 minutes, then reconnect for a full power-down.

Factory reset (erases data — rarely needed)

This is separate from the reboot and only for selling the car or clearing a persistent glitch. On the touchscreen go to Setup → General → Reset, or Settings → System → Restore Factory Settings on Kia Connect navigation units, and confirm. It wipes paired phones, presets, favourites and settings back to factory defaults.

Frequently Asked Questions

Will rebooting my Rio lose my presets and paired phone?

No. The knob-hold and the pinhole only reload the software. Presets, Bluetooth pairings and settings are kept — only the factory reset in the menu clears them.

My Rio keeps dropping Apple CarPlay — will a reboot help?

It often clears it for that drive. For a lasting fix, use a high-quality USB-A data cable, re-pair the phone, and ask a Kia dealer about the latest UVO software, which addressed several CarPlay drop-out bugs.

Where is the reset pinhole on the Mk4 Rio?

It is a tiny recessed hole on the screen bezel near the power/volume knob, marked RESET. Trims without one simply use the knob-hold instead.

Is it safe to drive with the Rio screen frozen?

Yes. The head unit is separate from the engine and brakes — you only lose audio, phone and the reversing camera. Reboot when parked.

The screen went black after a UVO update — what now?

Do the knob-hold reboot, then a full ignition cycle. If it stays black, disconnect the battery for 10 minutes. A unit that never wakes after a failed update needs a dealer to re-flash it.

If a warning light or fault message stays on the dash after the reboot, the car may have stored a diagnostic trouble code — you can look it up on autodtcs.com.