Where is the rearview mirror heating switch for the 2021 RAV4?

[VanCatherine]

The rearview mirror heating and rear windshield heating for the 2021 RAV4 share the same button. It is located in the middle of the bottom row of the center console, labeled with the word "REAR." Pressing this button activates the heating function. The rearview mirror heating 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 frequent manual wiping and reducing driving hazards. Rearview mirror heating function principle: 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. The heat is distributed across the left and right rearview mirrors. Meanwhile, as the temperature rises and evaporation occurs, water droplets on the mirror surface shrink, and fog gradually dissipates, effectively clearing frost and fog. 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 electric heating wires embedded in the mirror. These wires consume a significant amount of power. When using the rearview mirror heating function, ensure the car is running. Avoid activating the heating function while the car is stationary to prevent draining the battery and potentially leaving insufficient power for starting the engine. 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. This reduces the temperature difference, causing the fog to gradually disappear. Adjusting the car's air conditioning to the appropriate setting can also help by blowing warm air to defog the mirrors.

[StNevaeh]

Last time I drove my friend's 2021 RAV4, I also looked for this button. I remember it was in the air conditioning control area of the center console, sharing a button with the windshield heating switch, featuring three upward-curving arrows. It's not useful in hot weather, but it's great for rainy days. Press it, and in about 15 minutes, the mirror heats up, slowly evaporating the water droplets, making it much clearer to see behind when driving. Next time, try it, but don't mistake it for the windshield defogging button.

[DeAdaline]

The rearview mirror heating button is quite easy to find, located on the air conditioning panel in front of the gear lever, integrated with the rear window defogger button marked with a square and wavy lines. A small yellow indicator light on the dashboard will illuminate when pressed, but it takes a few minutes to warm up. I usually turn it on before heading out during the summer rainy season—keeping the mirror clear makes reversing safer. A veteran driver's tip: Avoid keeping it on for more than 20 minutes at a time to prevent overheating and damaging the heating element.

[LeIsabella]

The 2021 RAV4 hides this feature in the air conditioning control area—it's the button with rectangular waves next to the round temperature adjustment knob. Press it to heat both the rear window and mirrors simultaneously, which is especially useful on frosty winter days. The heating wires work much faster than wiping the mirrors. During the recent temperature drop, I relied on it to defrost, and within five kilometers of driving, the mirrors were already crystal clear.

[MacChristian]

I also drive this car. The rearview mirror heating switch is located at the bottom of the center console air conditioning panel, which is the button marked with a window and wavy lines. Normally, it should be used in combination with the temperature knob: first turn the temperature to the hot air setting and then press the heating button. It is recommended to press it in advance on rainy days. After activation, you can feel the mirror surface heating up noticeably, and the moisture visibly decreases. Be careful not to use it unnecessarily on dry days, as it can easily burn out the wiring.

[DiKingston]

It took me quite a while to find this switch, only to discover it's integrated into the rear window defogger button below the right-side AC knob. When pressed during rain, you can feel the mirror frame warming slightly as water streaks gradually vanish from the surface. This feature proves particularly useful during southern China's rainy season, especially on highways where clear mirrors make lane changes much safer. The space-saving design is clever, though beginners might overlook it.