How to Open the Fuel Tank Cap on a Buick Car?
2 Answers
Buick fuel tank caps are divided into inner and outer caps, with options for electronically controlled or key-operated opening. The electronic control button or manual lever is usually located on either side of the driver's seat, marked with a fuel pump icon. Simply press or pull it to automatically open the fuel tank door. The inner cap, visible only after opening the outer cap, is made of plastic and twists right to close and left to open. Below is related information about Buick's fuel system: 1. Before refueling, turn off the engine and ensure all doors and windows are closed. The fuel type is unleaded gasoline, with ethanol-blended gasoline containing up to 10% ethanol allowed. 2. The fuel type is unleaded gasoline with an octane rating of 92 or higher. When using ethanol-blended gasoline with up to 10% ethanol, ensure its octane rating meets the above standards.
Let me explain this in detail. I drive a 2018 Envision, and the fuel tank cap release is located on the floor near the lower left side of the driver's seat—there's a small lever with a fuel pump icon. Just pull it, and you'll hear the fuel tank cap pop open. If you're driving a newer model like the Excelle or Regal, the fuel tank button is usually located near the air vent on the lower left side of the steering wheel—just press it. However, for older Buick models, such as the LaCrosse from over a decade ago, you need to press the right side of the fuel tank cap directly when the doors are unlocked to release it. Never force it open—a friend of mine once broke the latch in a hurry to refuel. Also, remember that the fuel tank cap can only be opened when the engine is off; for hybrid models, the fuel tank cap remains electronically locked if the engine is running. If you temporarily can't open it, don't panic—most Buick models have a yellow emergency release cord hidden behind the side trim panel in the trunk.
