Reset a Frozen Infotainment Screen

Last updated: June 10, 2026

If the central display on your Infiniti Q70 (Y51, 2014–2019) has frozen — the navigation locks up, the audio menu ignores the dial, or the screen goes blank — you can usually reboot it yourself from the driver’s seat. No diagnostic tool is needed for the soft reset.

The System in This Generation

The Q70 (the facelifted, renamed M37/M56) uses Infiniti’s earlier single-screen InTouch / hard-drive navigation system — one central display controlled by the rotary InTouch Controller on the console plus a set of hard buttons, not the stacked twin screens of the Q50 and Q60. Its display is driven by a Display Control Unit (DCU) that, on these years, is prone to a specific failure: a tired internal microSD/hard-drive that causes blank screens and self-reboots. A soft reset clears ordinary software hangs; the persistent faults point at that unit.

Soft Reset (No Data Loss)

This power-cycles the display unit only. It does not erase presets, paired phones or saved destinations.

1. Put the car in Park with the ignition on (engine running is fine, or press start once without the brake).
2. Find the audio power/volume knob on the centre stack.
3. Press and hold that knob for about 10 seconds, ignoring the volume change.
4. The screen goes black, then the Infiniti logo appears as the unit reboots.
5. Wait for the menu to load fully (around a minute) before using the controller.

Is It Safe? Will I Lose Anything?

Yes. The soft reboot only restarts the display module. Your radio presets, Bluetooth pairings and navigation favourites are kept — only the temporary state that caused the freeze is cleared.

If It Stays Frozen

• Hold the knob a second time — the first try occasionally only dims the screen instead of rebooting it.
• Lock the car for 5 minutes so the modules sleep, then restart.
• Disconnect the 12V battery negative terminal for a couple of minutes, then reconnect — the strongest at-home reset, and the trick several Q70 owners use to revive a dead screen.
• Quick hardware test: if the reversing camera still shows a picture but the menu won’t work, the screen itself is fine — the DCU (often its internal microSD) is the culprit, and that needs a specialist, not a soft reset.

Factory Reset (Erases Your Data)

Use this only if the soft reboot won’t hold, or before selling the car. From the Settings menu (via the controller) open System and choose Reset / Restore factory defaults. This deletes paired phones, presets and saved destinations, returning the unit to as-delivered. Have your radio security code ready in case it’s requested on the next start.

Frequently Asked Questions

How do I reboot the navigation on an Infiniti Q70?

Park, ignition on, then press and hold the audio power/volume knob for about 10 seconds until the screen goes black and the Infiniti logo returns.

My Q70 screen is blank but the radio still plays — what is it?

That split — sound but no picture — usually means the DCU/display has hung or is failing. Try the knob reboot; if the reversing camera shows but the menu doesn’t, the control unit needs attention.

Will rebooting lose my saved destinations?

No. A soft reboot keeps favourites, presets and pairings. Only a factory reset removes them.

Does the Q70 have the dual-screen InTouch like the Q50?

No — the Q70 uses the earlier single central screen with the rotary controller, so there’s only one display to reboot.

Can I do this while driving?

Park first. Holding the audio knob on the move is distracting and unsafe, and many menus are locked at speed anyway.

If a warning light appeared along with the freeze, the underlying fault may be stored as a diagnostic trouble code — you can look it up on autodtcs.com.