How to Fix a White Car Display Screen?
2 Answers
First, check whether the power supply to the display screen is normal. If the power supply is abnormal, replace the power supply module. Then, check whether the cable connection is good. If there is a problem, replace the cable. Replace the display screen for testing. If it returns to normal, the display screen is damaged.
A friend of mine had the same issue with his car—the screen suddenly went completely white, making it impossible to see anything. This is usually caused by a problem with the display backlight, a loose wiring connection, or a fault in the screen driver board. First, try a simple fix: check the car’s fuse box, locate the fuse corresponding to the display, pull it out, and see if it’s blown. If it is, just replace it with a new one. If the fuse is fine, turn off the engine, wait a few minutes, and restart—sometimes a system reboot will resolve the issue. You can also open the panel yourself to check the wiring connections—gently unplug and then firmly reconnect them. If the screen remains completely white, it might be due to hardware aging, especially in hot summer weather when components are more prone to failure. It’s best not to ignore it; take it to a professional repair shop for inspection, as navigation failure can affect driving safety. When driving, try to avoid prolonged exposure of the screen to direct sunlight—high temperatures are a major culprit.
