What Causes a Car Navigation Screen to Go Black While Still Having Sound?

[SadieRose]

Reasons for a car navigation screen going black while still having sound: 1. The motherboard operating voltage is unstable, causing a crash; 2. The touch screen is damaged; 3. The decoding chip or core module is not working or is damaged; 4. The power plug of the navigation display is loose. Car navigation systems feature GPS global satellite positioning functionality. Once the destination is input into the car navigation system, the system automatically calculates the route based on the electronic map and guides the driver to follow the calculated route during the journey. The car GPS navigation system consists of two parts: one part includes the GPS receiver and display device installed in the car; the other part is the computer control center. These two parts communicate via positioning satellites.

[PaisleeLee]

I've been driving for over a decade and have encountered several instances where the navigation screen went black but the audio still worked, which is quite annoying. The most common causes are either a faulty backlight or loose wiring connections, similar to when your phone screen is on but the backlight isn't working. Sometimes, failed system updates or software conflicts can also cause this, such as when you accidentally adjust the brightness to the lowest setting or select the wrong mode in the settings menu. If the audio is still functioning, it means the navigation system is working, but not being able to see the map is dangerous. I recommend staying calm, finding a safe place to pull over, and attempting a soft reboot of the navigation system by holding down the power button or performing a battery reset. During regular maintenance, always check the wiring connections and software versions to avoid issues caused by dust accumulation or unstable battery voltage. If you can't fix it yourself, it's best to visit a professional repair shop as soon as possible to inspect the screen's motherboard or replace components.

[DiLeilani]

The navigation screen of our family car often goes black, but the sound still works, which gave my wife and me quite a scare. I think it's mostly caused by operational errors, like accidentally pressing the display shortcut key or the interface getting stuck on a certain function page. The fact that the sound is still working proves the device isn't broken; it's just the screen not displaying, possibly due to poor contact in the wiring or a motherboard malfunction. Try to recall if you had just updated the software that day or if there were significant temperature changes after parking. I recommend trying to restart the navigation system by turning it off and on again when encountering this issue, and avoid operating it while driving to reduce risks. Regularly clean the interior to prevent dust from blocking the ventilation holes, and periodically check the fuses and power system to minimize this problem. If it really needs repair, check the costs at a 4S shop or auto repair shop, and never compromise driving safety.

[JessicaMarie]

I've seen this before, where the car navigation screen goes black but there's still sound. Common causes include software glitches, system freezes, or loose connection cables. It might be due to an error during an upgrade or aging hardware. When I dealt with it myself, I simply restarted the navigation device, which usually fixed the problem. If that doesn't work, check if the display settings were accidentally adjusted, like the brightness being turned down too low to see. Be careful not to force the screen with your hands—safety first while driving, so it's better to handle it after parking. Using the car less in dusty environments can help prevent dust from causing issues. Repairs aren't expensive either, just a small cost to fix it.

[Dallas]

After driving for so long, if the navigation screen goes black but the sound is still working, it's most likely a hardware issue, such as a broken backlight or poor wire contact. Sometimes, an unsuccessful system update or unstable power supply can also cause this phenomenon. The last time I encountered this was after driving in high temperatures for a long time. You should find a safe place to stop, turn off the device, wait a few minutes, and then restart the navigation. For maintenance, regularly cleaning the device interfaces and updating the software can effectively prevent this. If that doesn't work, you might need to check if the motherboard is faulty and requires replacement parts. Keeping your car battery in good condition can reduce voltage-related issues. Spending some time on maintenance can save you a lot of trouble.