Where is the rearview mirror heating switch on the 2021 CR-V?

2 Answers
DanielFitz
07/30/25 12:41am
The rearview mirror heating switch on the 2021 CR-V is located on the center console buttons. The 2021 CR-V rearview mirror heating switch is a push-button type, featuring a square frame with three upward-curving arrows inside. Pressing the button activates the rearview mirror heating function. Rearview mirror heating is particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the surface, gradually removing rainwater or fog from the mirror. This eliminates the need for drivers to frequently wipe the mirrors manually, thereby reducing driving hazards. Methods 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 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 there is a control button on the driver's side. 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 minutes, typically between 35-60 degrees Celsius. Heat is then emitted from both left and right rearview mirrors. Simultaneously, due to the rising temperature and evaporation, water droplets on the mirror surface become smaller, and fog gradually disappears, effectively defrosting the mirror. 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 power. Therefore, 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 battery, which could leave insufficient power to start the car. Other methods to defog rearview mirrors include: Opening windows for airflow: Crack open the side windows slightly to allow air convection between the inside and outside of the car. This reduces the temperature difference, causing the fog to gradually disappear. Using the air conditioning: Adjust the car's air conditioning to the appropriate setting to blow warm air for defogging.
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JasperLee
08/15/25 5:45am
On the 2021 Honda CR-V, the rearview mirror heating switch is actually the same as the rear window defroster button. Having played with cars for years, I found it integrated on the left side of the center console with a rectangular icon featuring wavy lines. Pressing it simultaneously activates the heating function for both the rear window and side mirrors. This design is quite clever, utilizing an electronic temperature control system to melt frost or evaporate condensation, enhancing driving safety in rainy conditions. Remember not to keep it on continuously, as the vehicle will automatically turn it off to prevent overheating and component damage. Most versions of the 2021 CR-V come with this feature as standard, though lower trim models might require it as an optional add-on. It's super convenient to use, especially during morning rush hour commutes—just press to clear fog, ensuring clear visibility and reducing blind spot risks. When washing the car, avoid splashing water near the switch to keep the area dry.
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