
The Buick Envision's mirror heating switch shares the same button as the rear window defroster. Press it once to turn the function on or off. When driving in foggy, rainy, or snowy conditions, moisture can obscure the driver's view of the side and rear areas, often requiring the driver to reach out and manually clean the mirror surfaces. This is not only highly inconvenient but also significantly compromises driving safety. Activating the mirror heating function proves extremely beneficial in such situations. The Buick Envision features a new wing-shaped chrome trim that runs through the LED wing-shaped headlights, widening the horizontal visual effect. The dynamic bumper design and three-dimensional silver lower guard create a robust and powerful front fascia. The rear also adopts a three-dimensional wing-shaped design, with chrome trim seamlessly connecting to the taillights, complemented by integrated dual exhaust pipes to enhance the sporty appeal.

I found that the Buick Envision's mirror heating button is usually integrated with the rear window defogger button on the climate control panel—it's the rectangular icon with wavy lines, which you can locate on the center console. Pressing it activates heating for both the side mirrors and rear window, especially useful during rainy or cold weather to enhance visibility and safety. Having driven this car for several years, I recall checking the button's functionality every winter before heading out, as the heated mirrors can get hot to the touch, so avoid direct contact. If the button doesn’t work, it might indicate a blown fuse or wiring issue—try restarting the infotainment system or visit a dealership for an electrical inspection to ensure worry-free driving. Developing a habit of regular maintenance is crucial.

This feature is quite cleverly designed, located on the defog button in the air conditioning area. With a single press, it activates the rearview mirror and rear window heating, making the operation simple. I've studied many cars, and Buick's integrated approach saves space and is highly efficient. In situations with poor visibility while driving, pressing it once automatically works for over ten minutes, with a principle similar to electric heating wire temperature control. Note that it only takes effect after the engine starts, and avoid covering the sensor in daily use to maintain effectiveness. For safety, the heated mirror temperature rises, so avoid touching it with your hands; simply wipe off dirt with a cloth. If it malfunctions, check the manual for backup solutions.

It's located on the rear window defogger button of the air conditioning panel, with an icon showing a rearview mirror and wavy lines. Just press it to activate. I often commute in my Envision, and this feature is a lifesaver during rainy or foggy weather. It improves visibility, reduces risks, and ensures a safer drive. It's straightforward to use, so don't overthink it.


