
The Lexus rearview mirror heating button is located on the center control panel, above the hazard light button, and features an icon with three upward-pointing wavy arrows. Press this button to activate 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 mirror surface, gradually removing rain or fog from the mirror. This eliminates 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 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 distributed across the left and right rearview mirrors. As the temperature rises and evaporates, water droplets on the mirror surface gradually shrink, and fog slowly disappears, effectively defogging and deicing the mirror. 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 mirrors, which consume a significant amount of power. When using this function, ensure the car is running. Avoid activating the rearview mirror heating while the car is stationary to prevent draining the battery and potentially leaving insufficient power to start the car. Other methods for defogging rearview mirrors include: Opening windows for air circulation: Slightly open the side windows to allow air exchange between the inside and outside of the car. This reduces the temperature difference, causing the fog to gradually disappear. Using the car's air conditioning: Adjust the air conditioning to the appropriate setting to blow warm air, which helps remove fog.

On Lexus models, the rearview mirror heating function is usually integrated with the rear window defroster switch, and the button is mostly located in the control panel area of the dashboard. I remember when driving my car, it was near the air conditioning knob or the middle part of the main dashboard. For example, in the RX or ES series, it's right there, typically a button with three wavy icons or something like a square frame. Pressing this button not only defogs the rear window but also automatically activates the heating wires in the mirrors. Having driven a Lexus for several years, I found this feature particularly useful on rainy or cold days, as it quickly clears fog or raindrops from the mirror surfaces, ensuring you can see clearly behind you. However, if the mirrors don't respond, you might need to check if the defrosting system is functioning properly or if a fuse has blown. In any case, it's within sight and easy to find with just a press. Trying it before driving is safe and hassle-free.

As a safety-conscious driver, I'd like to remind everyone that the rearview mirror heating button on Lexus vehicles is often located near the air conditioning controls. It typically shares the same button operation as the rear window defroster - a single press activates the heating function to clear rain or frost from the mirrors. I've experienced foggy morning drives where blurred mirrors dangerously impaired visibility, and this button provided an instant solution. In most Lexus models like the NX or UX, you'll find this conveniently placed button either below the steering wheel's right side or on the center console for clear visibility. Remember that in cold weather, the system needs brief warm-up time after starting the vehicle - avoid excessive button pressing. If the button fails, it may indicate electrical issues or mechanical damage requiring service. Regular maintenance should include mirror cleaning to prevent dust accumulation on heating elements that could reduce effectiveness. Make it a safety habit to locate this button and understand its function - preparedness prevents hazards.

After years of car maintenance, I've found that the Lexus rearview mirror heating button placement is quite straightforward. It's typically located on the driver's side control panel near the defroster switch - a simple press activates the mirror heating function. This space-saving design is shared with other functions. You'll commonly find it beside the AC panel with a clear icon (usually square with wavy lines). Remember to ensure the engine is running before operation, otherwise the system may not work. If heating fails, check for loose wiring connections or blown fuses. While DIY replacement isn't difficult, it's advisable to consult a technician if unsure to avoid incorrect disassembly. Don't overthink it - just test after starting the engine.


