The button for the rearview mirror heating function on the Malibu is located in the lower right corner of the car's central control air conditioning operation area. The button with a rectangular icon showing upward airflow is the one—this button serves as both the rear window defroster and the rearview mirror heating switch. Pressing it will activate the heating function for both the rear window and the rearview mirrors. The rearview mirror heating feature is particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the surface, gradually removing rain or fog, eliminating the need for the driver to frequently wipe the mirrors manually, 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 required, as the driver's side has a dedicated adjustment button. 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 emitted from the left and right rearview mirrors. Simultaneously, as the temperature rises and evaporation occurs, water droplets on the mirror surface gradually shrink, and fog slowly dissipates, effectively defrosting and de-fogging the mirrors. However, if the rain is particularly heavy, the effect may diminish, becoming less noticeable. Precautions for using the rearview mirror heating function: The principle of rearview mirror heating involves adding electric heating wires to the mirrors, which consume a significant amount of power. When using this function, ensure the car is in an active state (engine running). Avoid activating the rearview mirror heating while the car is stationary to prevent draining the battery, which could hinder the car's ability to start. 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 by blowing warm air to defog the mirrors.
