What are the reasons for the black screen on the Envision's dashboard?
4 Answers
The reasons for the black screen on the Envision's dashboard could be a loose or poorly connected wiring harness plug, or a blown dashboard fuse. Many cars now use full LCD dashboards, which are essentially display screens. Full LCD dashboards can display more information and have a more visually appealing effect, making them a popular feature among many car owners. The Envision is General Motors' new global strategic model, with dimensions of 4686mm in length, 1839mm in width, and 1660mm in height, and a wheelbase of 2750mm. In terms of interior, the Envision continues Buick's tradition of high-quality interior craftsmanship and introduces a newly designed 10-inch high-definition touchscreen to enhance the technological feel. The vehicle also features front-row multi-function seats, rear-row sliding seats with adjustable backrest angles, a split-type oversized central storage box, a heated steering wheel, and a two-piece oversized panoramic sunroof.
I once encountered a situation where the dashboard went black. At first, I thought the display was broken, but the issue might be simpler. The most common cause is a blown fuse—there's a specific fuse for the dashboard in the fuse box under the steering wheel. Wiring issues are also critical, such as rodent damage or oxidized connectors, especially in humid areas. Insufficient voltage can also lead to a black screen, as an aging battery or unstable alternator output may cause the dashboard to automatically shut down for protection. Software crashes are not uncommon either, similar to a phone freezing—disconnecting the battery's negative terminal for five minutes and reconnecting it can force a reboot. Lastly, there's the possibility of hardware failure in the dashboard itself, though this usually comes with other functional abnormalities. I recommend checking the fuse and battery voltage first. If you can't figure it out, take it to a professional shop for diagnosis.
Last time I was driving, the dashboard suddenly went completely dark, which scared me into pulling over immediately. Later, I found out the cause was actually quite common—blown fuses are the most frequent issue, especially when overloaded from installing additional electrical devices. Wiring faults are also widespread, where loose plugs or crushed insulation leads to short circuits—sometimes tapping the center console can make it flicker back. Voltage problems are often overlooked; loose battery terminals or alternator abnormalities can trigger this. I've also heard extreme temperatures can cause LCD screen failures, particularly in cold regions. If you encounter a black screen, don't push through—try restarting the vehicle first. If that doesn't work, turn off all electrical devices to let the system reset. For safety, it's best to call for roadside assistance—driving on highways without a dashboard is far too dangerous.
During my car repair experience, I've encountered Envision black screen cases which generally fall into three categories. Power supply issues are the most common, with fuses F15-F17 in the fuse box responsible for the instrument panel, along with loose battery terminals. Wiring faults come next, involving harness wear-induced short circuits or water ingress in the BCM module. Lastly are hardware failures, with instrument cluster damage being the least probable. For initial troubleshooting, first check if the instrument backlight is illuminated - visible light indicates a software freeze. Turn off the engine, remove the key, and wait ten minutes for the ECU to completely power cycle and reset. If still unresolved, test fuse continuity; the fuse box is located near the driver's knee area. When replacing fuses yourself, always use the same amperage rating.
