Which button is the rearview mirror heater on the Porsche Cayenne?
2 Answers
The rearview mirror heater button on the Cayenne is located on the left side of the multifunction steering wheel, marked with a rectangle containing three upward wavy lines. The function of the rearview mirror heater is to keep the mirrors clear when they fog up after rain, allowing the driver to see the lane position indirectly. Main function: When driving in rain, snow, fog, or similar weather conditions, the rearview mirrors can be heated via the electric heating wires embedded behind the mirror surface, ensuring clear visibility. Fixed temperature: The heating elements behind the rearview mirror glass quickly heat up to a fixed temperature within a few minutes, typically between 35-60 degrees Celsius. Warm air will emerge from both side mirrors, and as the temperature rises, water droplets on the mirror surface will evaporate, becoming smaller until they disappear. The fog will also gradually clear, achieving the effect of heating the mirrors and removing fog and frost.
I've been driving a Porsche Cayenne for several years, and the rearview mirror heating button is actually located in the air conditioning control area, sharing the same button with the rear window defroster. The icon looks like a rectangle with wavy lines, usually positioned among the central row of buttons on the dashboard. During winter or rainy days, just press it once, and the mirrors will automatically heat up to prevent fogging or icing—super practical. I used to think it was a separate button, but after checking the manual, I found most Porsche models integrate it this way, saving you the hassle of searching around. If you're unsure, try it while driving: press the button when the temperature is low, and after a few minutes, feel if the back of the mirror is warm—it's foolproof. Overall, this design is quite user-friendly, so don't waste time looking elsewhere; just check the air conditioning panel—the button is quite prominent.
