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What Causes the Buick GL8 Screen to Go Black and Fail to Start?

2 Answers

LaGabriella

07/29/25 9:12pm

Buick GL8 screen goes black and fails to start due to abnormal power supply to the display screen, which should be repaired promptly. Below are specific details about the Buick GL8: 1. Introduction: Since its debut in 1999, the Buick GL8 has undergone five generations of innovation and has won the favor of over 1.2 million users. In 2020, the Buick GL8 family launched three new series: the all-new Buick GL8 Avenir Aivia family, GL8 ES Landmark, and GL8 Land Business Class, offering users more diversified choices. 2. Powertrain: The all-new Buick GL8 family is equipped with General Motors' latest Smart Propulsion technology, featuring a powerhouse combination of the eighth-generation Ecotec 2.0T variable-cylinder turbocharged engine and a 9-speed HYDRA-MATIC intelligent transmission. This setup delivers robust power of 174kW and 350Nm, with a combined fuel consumption of only 7.9L/7.8L per 100km. The 9-speed intelligent transmission and the newly equipped ETRS electronic gearshift ensure quicker shifting responses and smoother power delivery. The new vehicle meets the China 6b emission standards and comes with an extended manufacturer warranty of 8 years or 160,000 kilometers for major engine and transmission components.

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KylieLee

08/15/25 7:33pm

The issue of a black screen and failure to start is something I've seen quite a few times on the GL8, mostly caused by battery aging. After prolonged use, the battery's ability to store electricity declines, and starting the car can overwhelm the entire system, causing the screen to automatically shut down for protection. Secondly, check if the main fuse is blown—you can find it in the fuse box on the left side of the engine compartment. If the fuse is burned out, the dashboard will go black. Another possibility is a fault in the start control module, such as the ECU shutting down after receiving an incorrect signal. In this case, you’ll need to reconnect the battery or use a professional diagnostic tool to read the codes. Don’t tinker with it yourself—try jump-starting it, and if that doesn’t work, tow it to a repair shop to avoid more serious electrical damage. Regularly replacing the battery can help reduce such headaches.

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