
There are "+" and "-" buttons on the gear lever; simply press them to operate. The "manual-automatic" transmission is essentially an automatic transmission (no clutch pedal, and the engine won't stall unless the key is turned off). The manual mode of a manual-automatic transmission will automatically downshift. When switching from automatic to manual mode while driving, the car will automatically shift to the highest gear. If needed, it will downshift automatically, but upshifting must be done manually. Below is some relevant information: 1. A manual-automatic transmission combines manual and automatic shifting methods. Manual mode allows you to freely adjust gears and RPM, providing a thrilling and sporty driving experience, full of driving pleasure. 2. The manual-automatic transmission is still a type of automatic transmission, simulating the operation of a manual transmission through an electronic control system. It offers drivers greater freedom in operation, allowing them to choose the appropriate gear and shifting timing, significantly enhancing driving enjoyment. 3. An automatic transmission greatly reduces the impact of manual shifting on the car's drivetrain, thereby extending the vehicle's lifespan and improving ride comfort. It can select the appropriate gear based on road conditions, ensuring the engine operates under optimal conditions. For cars frequently navigating complex road conditions, it eliminates the need for the driver to press the clutch for frequent gear changes, reducing driver fatigue. 4. Manual transmissions, lacking the hydraulic torque converter found in automatic transmissions, are generally more fuel-efficient (especially in urban driving, with a difference of 1-2L/100km for the same car and driving style) and also allow drivers to fully experience the joy of driving. 5. The manual-automatic transmission is designed to improve the fuel economy and control of an automatic transmission, returning the decision of shifting timing from the computer to the driver. At the same time, in urban traffic jams, the automatic mode can still be used for convenience. The manual-automatic transmission combines the advantages of both automatic and manual transmissions.

I've been driving the Buick Envision for several years and am very familiar with its manual-automatic transmission operation. Normally, leaving the gear lever in D position puts it in automatic mode, where the car shifts gears by itself, making it convenient for daily driving. However, when you want manual control, there are two methods: pushing to the M position or using the steering wheel paddles. The left paddle with a minus sign is for downshifting, which increases engine RPM and is suitable for climbing hills or accelerating to overtake, providing more direct power response. The right paddle with a plus sign is for upshifting, which lowers fuel consumption at higher gears and is ideal for steady cruising. After switching, the current gear is displayed on the instrument panel for easy reference. Manual mode is particularly useful when driving in mountainous areas, such as using lower gears to control speed on long descents, reducing the risk of brake overheating. However, avoid prolonged high RPM usage—use it occasionally to prevent transmission wear. Combining manual mode with the sport function offers more flexibility, but I recommend practicing a few times to get familiar with the feel. The automatic air conditioning follows a similar logic, automatically adjusting fan speed after setting the temperature.

I just bought a Buick Envision, and the manual function is a new skill I've learned. A friend taught me that while driving, simply pushing the gear lever from D to M engages manual mode; there are also plus and minus paddles behind the steering wheel. Pressing the minus paddle downshifts, making the car accelerate quickly with strong push-back force, which feels exhilarating when overtaking; pressing the plus paddle upshifts makes the ride smoother and more economical. I've tried it on highways and rural roads, and it feels like driving a manual but with less hassle—the system won't let you make mistakes like over-revving. The manual mode helped me a lot when leaving the city, making uphill climbs effortless. Occasionally, pairing it with the sport mode button makes the car even more responsive. For daily city driving, I mostly use automatic mode for convenience, but manual mode gives me a greater sense of control when traveling. Just remember not to use manual mode all the time, as it can increase fuel consumption and strain the car. The AC buttons are similarly straightforward—just press the temperature knob. Overall, it's easy to get the hang of.

We took our family Buick Envision on a trip and explained the manual mode usage to our child. Shifting from D to M gear or using the paddle shifters: press '-' to downshift for more power, making uphill climbs easier; press '+' to upshift when going downhill to control speed and protect the brakes. This feature is especially safe on mountain roads, reducing the risk of brake overheating. The automatic air conditioning similarly adjusts airflow after setting the temperature. Manual mode is an auxiliary tool—don't forget to switch back to automatic for normal driving, as frequent manual use can increase wear.


