Does the Teana have a rearview mirror heating function?
3 Answers
The Teana has a rearview mirror heating function. The button for the rearview mirror heating is the same as the rear windshield defogging button, located on the air conditioning panel, and both can be activated simultaneously. The rearview mirror heating function 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, eliminating the need for the driver 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 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, typically between 35-60 degrees Celsius. The heat will radiate from both left and right rearview mirrors. At the same time, as the temperature rises and evaporates, water droplets on the mirror surface will gradually shrink, and fog will slowly disappear, effectively heating the mirror and removing frost. If the rain is particularly heavy, its 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 in an active state. Avoid activating the rearview mirror heating 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: Crack open both side windows slightly to allow air exchange between the interior and exterior, reducing the temperature difference and gradually eliminating fog. Adjust the car's air conditioning to the appropriate setting to use warm air from the AC for defogging.
Just helped a friend inspect a Teana a couple of days ago, and I specifically tested the rearview mirror heating function. Most current Teana models come standard with this feature—the button is located near the AC controls on the center console, marked with a rectangular icon featuring a wavy arrow. It’s especially useful in the rain, as it evaporates water droplets from the mirror surface in just three to five minutes. Note that post-2019 models have optimized heating speed, making it about 30% faster than older versions. However, remember not to activate this function unnecessarily in dry weather, as it can accelerate the aging of the mirror coating. Also, hybrid versions display a flashing green energy-saving indicator on the dashboard when this feature is engaged—a pretty interesting design touch.
As a decade-long Nissan owner, I can responsibly tell you that the Teana has been equipped with heated mirrors across all trims since the 2016 model. During the recent rainy season, I used this feature daily: start the fan first after getting in the car, then press the heating button (the icon looks like a steaming mirror), and by the time the AC blows cool air, the mirrors are just defogged. However, three points to note: first, the defrost button also controls rear window heating; second, effectiveness diminishes in sub-zero temperatures; third, vehicles with retrofitted heated seats should check circuit load—last year, a fellow car enthusiast burned a fuse due to circuit overload.
