How to Open the Fuel Tank Cap on the Buick GL8?

[VonSawyer]

Buick GL8 opens the fuel tank cap steps are: 1. Enter the cockpit and locate the fuel tank cap switch button at the driver's position inside the car; 2. Pull the button to pop open the fuel tank cap; 3. Unscrew the inner fuel tank cap counterclockwise and hang it on the hook inside the outer cap. The Buick GL8 has body dimensions of: length 5238mm, width 1878mm, height 1776mm, with a wheelbase of 3088mm and a fuel tank capacity of 66 liters. The Buick GL8 is equipped with a 2.0L turbocharged engine, with a maximum power of 174kW and a maximum torque of 350Nm, paired with a 9-speed automatic manual transmission. It uses a MacPherson independent suspension at the front and a torsion beam non-independent suspension at the rear.

[Orlando]

After driving the GL8 for three years, I found the fuel filler cap is actually quite simple. There's a button with a fuel pump symbol on the floor between the driver's door panel and the center console—just press it while holding the brake. For the high-end version with OnStar, you can also press and hold the bottom right button on the remote key for three seconds to pop it open automatically. If the electronic button fails, don't panic—there's a mechanical pull cord hidden behind the right-side trim panel in the trunk; just pry open the cover and give it a tug. Remember not to turn off the engine when refueling—the GL8's fuel cap is twist-off, just rotate it counterclockwise 90 degrees to insert the fuel nozzle.

[McEmmanuel]

Last time when I helped my sister refuel the GL8, I encountered this issue. The black button near the driver's left foot needs to be pressed to pop open the fuel tank cap, but note that you must be in P gear or have the engine turned off for it to work. The newer models with smart keys are more convenient—just stand near the rear of the car and press the fuel tank icon button on the key for two seconds to open it. When refueling, pay attention to the fixed latch inside the fuel tank cap; align it with the fuel tank opening and tighten it clockwise until you hear a click, otherwise the malfunction indicator light will come on.

[DiAurora]

The GL8 fuel filler cap switch is located near the left knee position of the driver's seat, featuring an oval button with a fuel tank symbol printed on the plastic panel. Ensure the vehicle is unlocked and the engine is turned off before pressing. Older models have a separate switch, while newer versions integrate it into the vehicle settings on the central control screen—access the electronic switch under Energy Management. If it won't open, check if the doors are unlocked. After refueling, remember to twist the cap clockwise until it clicks into place to avoid triggering a fault code.

[Julian]

Last time I drove the company's GL8 on a long trip, I discovered some secrets: The electronic button is located at the lower left corner of the driver's seat, shaped like an oil droplet. The mechanical emergency release cable is behind the right-side panel in the trunk—just peel back the Velcro to see the yellow pull ring. For vehicles with the key proximity auto-unlock feature, pressing the right side of the fuel filler cap while the car is locked will automatically pop it open. After refueling, align the cap with the threaded opening and listen for a click to ensure it's securely fastened; otherwise, the dashboard will display a yellow warning light.

[ErinFitz]

Our fleet has over 20 GL8 vehicles, and new drivers often ask about opening the fuel tank cap. The black button on the left side of the driver's floor is the main switch, which requires the vehicle to be powered on to activate. In emergencies, open the trunk and locate a palm-sized access panel on the right side of the inner lining—pull it open to access the emergency release cord. Always turn off the engine when refueling. The GL8 fuel tank cap is a twist-off design; turn it counterclockwise until you hear a hissing sound before inserting the fuel nozzle. After the nozzle clicks off, do not force more fuel in. Simply tighten the cap clockwise until it won't turn any further.