These instructions apply to the Hyundai Tucson Mk4 (NX4) 2020-Present. For other models, please choose your vehicle here.
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The Hyundai Tucson Mk4 (NX4, 2020–present) moved to a large, glossy dashboard with up to a 10.25-inch touchscreen and a touch-sensitive climate panel — impressive, but more software to occasionally hang. If the screen freezes, goes black, or ignores taps while the audio plays on, you can reboot it yourself in under a minute and keep all your data.
The Infotainment System in This Tucson
The NX4 Tucson runs an 8-inch Display Audio or the 10.25-inch AVN navigation unit with Bluelink connected services. Wired CarPlay/Android Auto is standard; wireless projection is available on many trims and, as on the i20, a dropped wireless handshake is a frequent cause of a lock-up. The Power / Volume knob beside the screen is the reboot control, and the unit also has a small reset pinhole on the faceplate.
Soft Reset (No Data Loss)
- Keep the ignition on (engine running or ACC).
- Press and hold the Power / Volume knob for about 5–10 seconds until the display blanks; the Hyundai logo then reappears.
- Or, with a straightened paperclip, briefly press the RESET pinhole near the knob — a short press reboots without losing settings.
- Release and wait for the home screen to load.
Important: on the NX4, holding the pinhole in for around 5 seconds triggers a full reset that wipes your settings — for a normal reboot, press it only briefly.
This Is Safe — Nothing Is Erased
A soft reboot restarts the software only. Your Bluelink login, saved destinations, paired phones, presets and preferences are all kept.
If It Stays Frozen
- If on wired projection, unplug the USB cable; if wireless, toggle the phone’s Bluetooth or “forget” the car and re-pair.
- Switch the ignition off, lock the car, wait a couple of minutes, then restart.
- Install the latest software from update.hyundai.com — Hyundai has issued NX4 updates that cure wireless-CarPlay/Android-Auto dropouts and map-screen freezes.
- Still stuck? Disconnect the 12 V battery for ~15 minutes — see our Tucson Mk4 battery guide. (On the hybrid/PHEV the 12 V is separate from the drive battery.)
Factory Reset (Erases Your Data)
Only for persistent faults: tap Setup / Settings → General → Reset (or “Factory data reset”) and confirm — or hold the pinhole ~5 seconds. Either way Bluelink, paired devices, saved destinations and presets are wiped back to factory state, so you’ll set everything up again.
Frequently Asked Questions
What’s the difference between a short and long pinhole press on the NX4?
A brief press reboots without data loss; holding it for about 5 seconds does a full factory-style reset that erases your settings. Use a brief press for a normal freeze.
My wireless CarPlay freezes constantly — what’s the real fix?
Re-pair the phone, then install the current head-unit update from Hyundai; the wireless-projection patches resolve the recurring NX4 hangs.
Does the knob-hold delete my Bluelink account?
No. A soft reboot keeps Bluelink and all saved data; only a factory reset signs you out.
The touch climate panel froze too — does this fix it?
Often yes, if the panel is driven by the same head unit. Reboot first; if the climate buttons stay dead, have it scanned.
Black screen but audio still plays — is the unit dead?
Almost never. That is the classic soft-reset case — hold the Power knob for 10 seconds.
If a dashboard warning light appeared alongside the glitch, decode it on autodtcs.com.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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