
The rearview mirror heating switch for the Enclave S is located in the air conditioning control area on the center console, above the air conditioning cooling switch. The function of the rearview mirror heating is to heat the mirror surface, providing defogging and defrosting effects, keeping the rearview mirror clear and ensuring the driver's safety. Taking the 2021 Enclave as an example, it is a mid-size SUV with body dimensions of: length 4694mm, width 1839mm, height 1686mm, and a wheelbase of 2750mm. The 2021 Enclave features a front McPherson independent suspension and a rear multi-link independent suspension. It is equipped with a 1.5T turbocharged engine, delivering a maximum horsepower of 169PS, a maximum torque of 250Nm, and a maximum power of 124kW, paired with a 7-speed dual-clutch transmission.

I remember when I drove my brother's Envision S, I specifically looked for the rearview mirror heating button. It's installed on the center console panel, usually in the air conditioning control area, sometimes combined with the rear window defogging button, with an icon resembling a small wavy line. Every time I start the car on rainy or snowy days, I press it directly, and within minutes the mirror starts heating up to remove fog, ensuring clear visibility for safe driving. In practice, you need to make sure the engine is running for it to work, so don't press it before starting the car. This design is quite thoughtful, and Buick's configurations have always been practical. However, I always remind my friends to regularly check the button's responsiveness to avoid any mishaps on rainy days.

When I first got my Envision S, I was also clueless and fumbled around inside the car. Eventually, I found the details in the user manual: the rearview mirror heating button is usually located below the central control screen near the steering wheel or next to the air conditioning knob, with a rather inconspicuous icon. I tried it a few times—just a light press does the trick. It's super handy on frosty winter mornings when the mirrors gradually clear up. Later, I learned that it operates using the car's electrical power, so it's best to activate it after starting the engine while driving. This feature has saved me the hassle of wiping the mirrors, making my daily commute much more convenient.

As a long-time owner, I've always considered the rearview mirror heating feature crucial. In the Envision S, the button is conveniently located on the front console near the driver's seat, integrated into the temperature control panel. Press it after starting the engine to quickly defrost and maintain clear visibility. I recommend using it immediately when it rains to prevent blurred vision and potential accidents.


