Which Button is the Rearview Mirror Heater on the Envision?

[McGabriella]

The rearview mirror heating button on the Envision is located in the air conditioning control area of the center console panel. The button above the AC button is the rearview mirror heater, marked with a rectangle icon containing three wavy lines. The Envision's rearview mirror heating button shares the same function as the rear window defogger. The rearview mirror heater 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 frequent manual wiping by the driver and thereby reducing driving hazards. How to use the rearview mirror heating function: The rearview mirror heating function typically has two activation methods: one is combined with the electric rearview mirror adjustment button, where rotating the knob activates it, and the other is located on the air conditioning control panel, where pressing the heating button turns it on. No manual angle adjustment is needed, as the driver's side has an 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, usually between 35-60 degrees Celsius. Heat is then emitted from both 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 heating the mirror and removing frost. However, if the rainfall 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 electricity. When using the rearview mirror heating function, ensure the car is in an ignited state. Avoid activating the function while the car is stationary to prevent draining the car battery, which could lead to insufficient power for starting the vehicle. Other methods for defogging rearview mirrors include: Opening windows for air circulation: Slightly opening both side windows creates a convection between indoor and outdoor air, reducing the temperature difference and gradually dissipating fog. Adjusting the car's air conditioning to the appropriate setting can also utilize hot air blown by the AC to defog the mirrors.