How to Restore a Black Screen on the GL8 Navigation System?

[DiKarter]

Due to incompatibility between some brands and models of mobile phone Bluetooth, third-party software, and the host software. According to feedback from many C-class users, inserting anything into the USB port in the center armrest can cause the screen to go black. If the issue is caused by power line problems, the owner can only take the car to a 4S shop for inspection and repair, as line faults cannot be handled by oneself. If the central control system has not been updated and upgraded in time, it may also cause the screen to go black.

[Gail]

I remember that time when the navigation screen suddenly went black while I was driving my GL8, it was really annoying. I tried turning off the engine and waiting for ten minutes before restarting, and the system often recovered—this method is simple and effective. If the screen still doesn’t light up, you should check the fuse box. In the GL8, the fuses are located under a small cover next to the driver’s seat. If a fuse is blown, replacing it costs just a few bucks. Loose wiring is also a common issue; you can check the cable connections by hand to ensure they’re secure. On the software side, a black navigation screen might be due to system lag, so try resetting the navigation to factory settings. If it’s a hardware issue like a damaged screen, don’t try to fix it yourself—head to a professional repair shop right away, since safety comes first and you don’t want it affecting your driving. Regularly updating your navigation software helps avoid bugs and extends its lifespan.

[McReagan]

As a seasoned GL8 driver who has encountered navigation black screens multiple times, here's how to handle it: First, don't panic. Turn off the engine and wait for about five minutes before restarting - this usually reboots the system successfully. If that doesn't work, check the navigation-related fuse in the fuse box. The location varies slightly across different GL8 models, but replacement is straightforward. For loose wire connections, manually tighten them. In case of software issues, try resetting the navigation or updating maps via USB. If the screen remains completely unresponsive, internal hardware damage is likely, and professional diagnosis at a reliable auto repair shop is recommended. Never force navigation usage while driving to prevent accidents. Schedule regular maintenance for system stability checks, and keep spare fuses in your vehicle as a precaution.

[SadieRose]

DIY Fix for Navigation Screen Blackout: The quickest solution is to restart the engine. Next, check the fuse box; the GL8's fuses are usually located on the driver's side, around number F10—replace if blown. Ensure all wire connectors are securely plugged in. For software issues, try a system reset by restoring factory settings in the navigation. If the screen hardware is damaged, professional repair is necessary. Regular maintenance with update packages is recommended.