Where is the rearview mirror heating button on the 2021 Excelle?

[DeRhett]

The rearview mirror heating button on the Excelle is located on the air conditioning control panel. The rearview mirror heating function is connected in series with the rear windshield defrost function. It is represented by a square frame containing three upward-curving arrows. The rearview mirror heating feature is particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the mirror surface, gradually removing rainwater or fog, eliminating the need for drivers to manually wipe the mirrors frequently, thereby reducing driving hazards. How to use the rearview mirror heating function: There are generally two ways to activate the rearview mirror heating function. One is combined with the electric rearview mirror adjustment button—simply rotate the knob to turn it on. The other is located on the air conditioning control panel—press the heating button to activate it. No manual angle adjustment is needed, as the driver's side has adjustment buttons. Principle of the rearview mirror heating function: After pressing the button, the electric heater behind the rearview mirror glass rapidly heats up to a fixed temperature within a few minutes, typically between 35-60 degrees Celsius. The heat is then distributed across the left and right rearview mirrors. Meanwhile, as the temperature rises and evaporation occurs, water droplets on the mirror surface gradually shrink, and fog slowly dissipates, effectively heating the mirror and removing frost. However, if the rain is particularly heavy, the effect may diminish and become less noticeable. Precautions for using the rearview mirror heating function: The principle of rearview mirror heating involves adding electric heating wires to the mirror. These wires consume a significant amount of power. When using the rearview mirror heating function, ensure the car is in an active state. Avoid activating the function while the car is stationary to prevent draining the car battery, which could leave insufficient power for starting the vehicle. Other methods for defogging rearview mirrors include: Opening windows for air circulation: Crack open the side windows slightly to allow air exchange between the inside and outside of the car, reducing the temperature difference and gradually eliminating fog. Adjusting the car's air conditioning to the appropriate setting can also help defog the mirrors by blowing warm air.

[CodyAnn]

I've been driving the 2021 Excelle for a while, and the rearview mirror heating switch is located on the center console, sharing controls with the rear window defogger button. When you press the button with the small fan curve, not only does the rear window heat up to remove fog, but the mirrors also automatically warm up to clear condensation. It's positioned near the air control panel, easily reachable to the right of the steering wheel. On rainy or cold foggy days, using it for just a few minutes gives me a clear view, significantly improving safety. If you're a new driver and can't find it, check the user manual first—don't spend ages figuring it out like I did initially. Many cars feature this integrated design to avoid adding dedicated buttons.

[SanRicardo]

When I first bought the 2021 Excelle, I also asked about the rearview mirror heating position on the forum. Later, I found out through actual testing that it's integrated into the rear window defogging system. You just need to find a square icon button in the air conditioning control area on the center console, press it, and the heating function will be activated. I often use this when driving in the rain—just one press to remove fog and water from the rearview mirrors, and the view clears up instantly. The operation is super simple. I remember the first time I used it was when fog formed on the highway—just pressing it heated up the mirrors, and the problem was solved within minutes. The design is quite thoughtful, with automatic timing control so you don’t have to turn it off manually. After buying the car, exploring the center console buttons more will help you get familiar with them.

[OMarley]

My 2021 Excelle's rearview mirror heating and rear window defogging share the same switch, which activates with a single press. The button is located in the central control area near the dashboard and is easily recognizable with its small icon. The principle is simple: the heating wires inside the mirror automatically warm up to remove moisture, enhancing safety. It works efficiently on rainy or foggy days, clearing the mirror surface within seconds after activation, making it both energy-saving and practical.

[LeLila]

On the 2021 Excelle, the rearview mirror heating switch is integrated with the rear window defogger button. I frequently use this feature during rainy days to enhance driving safety. It's located on the central air conditioning panel and activates with a single press. The system automatically runs for 10 minutes to defog without requiring further adjustment. The design prioritizes driving convenience, enabling quick operation to minimize distraction. When encountering heavy fog, turning it on immediately clears visibility in seconds to prevent accidents.

[DeFaith]

My 2021 Buick Excelle is equipped with heated rearview mirrors, and the switch is located on the rear window defogger button. The position is clearly visible on the central console. On rainy days when I take my family out, I simply press it, and the mirrors heat up instantly to remove water droplets, improving visibility and making driving safer. The function is simple to use and shares space with the defogger, saving room. During regular maintenance, just check if the button is responsive, and frequent use will help familiarize you with the operation.