Does the Buick Excelle have a rearview mirror heating function?
2 Answers
The Buick Excelle is equipped with a rearview mirror heating function. The rearview mirror heating switch is located on the vehicle's air conditioning control panel, marked by a rectangular icon with three curved arrows from bottom to top. When the vehicle is powered on or started, simply press the button to activate the rearview mirror heating, which simultaneously turns on the rear window defroster. The rearview mirror heating function is particularly useful during rainy or snowy weather. When activated, the heater behind the mirror quickly warms the surface, gradually removing rainwater or fog, eliminating the need for the driver to manually wipe the mirrors frequently 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 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 adjustment buttons. 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 minutes, typically between 35-60 degrees Celsius. Heat is then emitted from both left and right rearview mirrors. Simultaneously, as the temperature rises and evaporates, water droplets on the mirror surface become smaller, and fog gradually dissipates, effectively defrosting the mirror. However, in heavy rain, its effectiveness 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 mirror, which consume a significant amount of power. When using this function, ensure the vehicle is running. Avoid activating the rearview mirror heating while the car is stationary to prevent draining the battery, which could hinder the vehicle's ability to start. Other methods for defogging rearview mirrors include: Opening windows for air circulation: Crack open both side windows slightly to allow air flow between the inside and outside of the car, reducing the temperature difference and gradually eliminating fog. Adjust the car's air conditioning to the appropriate setting to blow warm air for defogging.
When I used to drive the Buick Excelle, I noticed that many newer models come equipped with heated side mirrors, especially higher-end versions like the GT trim. This feature automatically activates in low temperatures or rainy conditions, using built-in heating elements in the mirrors to prevent fogging, significantly improving visibility during reversing and lane changes. I remember on winter mornings when the mirrors were completely frosted over, pressing the defogger button inside the car would clear them within minutes—no more frantic wiping with a cloth, just safe and convenient. However, this feature depends on your car’s specific model year and trim level; some base models might not have it, so I’d recommend checking the owner’s manual or consulting a 4S dealership to confirm and avoid missing out on this handy detail. Overall, Buick has done a thoughtful job with this feature.
