Where is the Tesla Rearview Mirror Heating Switch Located?
3 Answers
The Tesla rearview mirror heating function is integrated with the rear windshield defogger button, which is the icon to the right of the main air conditioning switch. Pressing this button activates the 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 rain 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: There are generally two ways to activate the rearview mirror heating function. One is combined with the electric rearview mirror adjustment control—simply rotate the knob to turn it on. The other is located on the air conditioning control panel—pressing the heating button activates 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 (typically between 35-60°C) within minutes, distributing heat across both left and right mirrors. Simultaneously, as the temperature rises and evaporation occurs, water droplets on the mirror surface shrink, and fog gradually dissipates, effectively clearing frost and condensation. In heavy rain, however, the effect may diminish and become less noticeable. Precautions for Using the Rearview Mirror Heating Function: The heating function relies on embedded electric heating wires, which consume significant power. Ensure the vehicle is running when using this feature to avoid draining the battery, which could otherwise hinder engine startup. Alternative Methods for Defogging Rearview Mirrors: 1. Window Ventilation: Slightly open both side windows to allow air circulation, equalizing indoor and outdoor temperatures and gradually eliminating fog. 2. Air Conditioning: Adjust the car's air conditioning to direct warm airflow toward the mirrors for defogging.
A few days ago, while driving a friend's Model 3 in the rain, I discovered how practical the rearview mirror heating function is. You can find it directly in the climate control interface - just look for the rectangular icon with wavy lines (the rear defroster symbol). Tapping it activates both the rear windshield and mirror heating simultaneously, with no extra steps needed. If your mirrors frost over on winter mornings, remember to turn it on 5 minutes in advance - the dashboard will display a red heating indicator. Important note: avoid unnecessary use during hot weather as it consumes extra power and may accelerate mirror degradation. The newer models have this conveniently integrated into the automatic defogging function for added convenience.
After two years with the Model Y, I discovered the rearview mirror heating is actually hidden on the second page of the climate menu. Tap the climate control area at the bottom of the screen, locate the defrost button with the square glass icon, and pressing it activates the heating elements on both sides. Real-world testing shows water droplets start evaporating in about 3 minutes during rain, and combining with warm air works better for heavy fog. A little-known tip: long-pressing the defrost button for 3 seconds activates maximum power mode, ideal for emergency defrosting. Remember to avoid spraying the mirror directly with high-pressure washers during car washes - the heating elements inside are quite delicate.
