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How to Open the Fuel Tank Cap of Buick GL8?

3 Answers
CalvinLee
09/01/25 2:41am
To open the fuel tank cap of the Buick GL8: Use the fuel tank cap release switch located on the driver's side door. Below is an introduction to the Buick GL8: 1. Overview: Since its debut in 1999, the Buick GL8 has undergone five generations of innovation. In 2020, the Buick GL8 family introduced three major series: the all-new Buick GL8 Avenir, GL8 ES Luxury, and GL8 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, delivering robust performance with 174kW and 350Nm of power.
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McIris
09/13/25 5:37am
I've experienced opening the fuel tank cap of the Buick GL8 before, and I was quite confused when I first bought the car. The GL8's fuel tank cap is electronically unlocked. There's a small button on the left side of the driver's door marked with a fuel tank icon. Press it to unlock, then simply push the fuel tank cap gently after getting out of the car. Always ensure the engine is turned off before operating for safety. If the button doesn't work, it might be due to a dead battery or an issue with the car lock settings; try replacing the battery or checking the remote key. The GL8's fuel tank is located on the left rear side of the car, so make sure to position it correctly at the gas station to avoid parking on the wrong side. Using regular 92-octane gasoline is cost-effective and durable, while avoiding poor-quality fuel to protect the engine. Regularly clean the button to prevent dust buildup and maintain system responsiveness. If the button is broken, take it to a 4S shop for repair instead of forcing the cap open.
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AshleyFitz
10/27/25 6:24am
After years of driving a Buick GL8, I find its fuel tank cap design quite user-friendly. The unlock button is typically located on the inner side of the driver's door or at the lower right position of the steering wheel. Look for the small fuel tank icon button – press it and you'll hear an unlocking sound, causing the fuel tank cap to pop open slightly. Then you can push it wider to refuel. The key point is to operate only when the engine is off to avoid accidents. Most GL8 models feature electronic control; if the button fails, it might be due to a blown fuse or loose wiring – consult the user manual to locate and replace it. After refueling, ensure the fuel tank cap is tightly closed; it automatically relocks when the car is locked for anti-theft security. Regularly maintain the button area to prevent dirt from interfering with operation. Keeping a manual key for emergency use is advisable, though the GL8 rarely employs mechanical mechanisms. It's particularly convenient and efficient for city driving.
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