
The method to open the fuel tank cap on the Envision is: After unlocking the vehicle and shifting to P gear, press the fuel tank cap from the outside to open it. Below are specific details about the 2021 Envision model: 1. Its body dimensions are: length 4694mm, width 1839mm, height 1686mm, wheelbase 2750mm, and curb weight 1610kg. 2. The 2021 Envision features a MacPherson strut front suspension and a multi-link rear suspension. It is equipped with a 1.5T turbocharged engine, delivering a maximum horsepower of 169ps, maximum torque of 250Nm, and maximum power of 124kW, paired with a 7-speed dual-clutch transmission.

When I first bought my Envision, I was also confused about how to open the fuel tank cap. Later, I checked the manual and found it super simple. Sit in the driver's seat and start the car. While the engine is running, look for a small button on the lower left side of the steering wheel or on the dashboard area with an icon resembling a gas station. Press it and you'll hear an unlocking sound. Then, go to the fuel tank area at the rear of the car and push the pull ring on the top of the cap to open it. After refueling, remember to close the cap tightly to avoid the malfunction indicator light coming on. Once, I didn’t close it properly, and while driving on the highway, I got a prompt to check the fuel tank, which almost led to a safety issue. Fortunately, I pulled over in time to fix it. In daily use, it’s best to avoid frequently opening and closing the fuel tank cap in the refueling area, as the electronic locking system is prone to interference. Occasional accidental presses or malfunctions can be troublesome.

As a seasoned driver with years of experience, the fuel filler cap design of the Envision is highly user-friendly. Simply start the engine, reach down toward your left calf while seated, and you'll locate the control button marked with a fuel tank symbol. Press it to unlock, then walk to the rear left wheel area where a gentle push opens the cap. If the button fails to respond, it might indicate a blown fuse or battery issue—in such cases, check the trunk corner for an emergency manual release lever. Always ensure the vehicle is parked on level ground during refueling; avoid slopes to prevent fuel spillage risks. Regular maintenance should include keeping the button crevices free from dust accumulation to maintain smooth electronic system operation.

The fuel filler cap of the Envision typically uses an electronic unlocking mechanism: sit in the car and start the engine, locate the dedicated button on the left-side panel of the steering wheel (marked with a fuel droplet or fuel tank icon), press it once to unlock, and the fuel filler cap will automatically pop open; gently push it open to refuel. This design avoids the hassle of traditional key operation, offering quick response and anti-theft features. Occasionally, it may get stuck due to dirty switch contacts or a short circuit in the wiring—simply remove the trim panel to inspect the connection points in such cases. The electronic system is highly reliable, but regular cleaning of the contact areas is important.

To open the fuel tank cap on the Envision, first start the vehicle. After the engine is running, locate the button on the control panel inside the door and press it to unlock. The cap is on the left side at the rear of the vehicle; after pushing it open, remember to tighten it firmly after refueling to ensure a proper seal. Safety is paramount: never attempt this while driving, operate only on level ground, and keep static electricity or ignition sources away from the fuel tank opening. If unlocking fails, check the fuse box for any blown fuses or abnormalities in the door lock system, and repair promptly to avoid travel delays. New owners often overlook this step, triggering alarms, so it's advisable to check the system status weekly as a preventive measure.

Compared to other models, the Envision's fuel tank cap is quite user-friendly: simply start the car and press the unlock button located on the lower left side of the driver's seat. Unlike older models that require a key to turn the lock, the cap opens with a gentle push at the rear of the vehicle, completing the process in about 10 seconds. I've tested it multiple times—the electronic system is stable but can be sluggish in extreme temperatures; warming up the engine in winter helps. Always ensure the cap is tightly closed after refueling to avoid abnormal fuel consumption. Overall, this design is time-efficient and practical, though users of older models might need some time to adjust to the new button location.


