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What is the light button on the rear view mirror?

The light button on the rear view mirror is a feature found in many modern vehicles that serves an important purpose. This button allows the driver to control the brightness of the rear view mirror, making it easier to see and reducing glare from headlights of vehicles behind them.


What is the Light Button on the Rear View Mirror?


The light button on the rear view mirror is a small button or switch that is typically located on the bottom or side of the mirror. When pressed or toggled, it adjusts the reflectivity of the mirror, reducing the amount of light that is reflected back to the driver's eyes. This is particularly useful when driving at night or in low-light conditions, as it helps to prevent the glare from the headlights of vehicles behind the driver from being too bright and distracting.


How Does the Light Button Work?


The light button on the rear view mirror works by controlling the reflectivity of the mirror. Most modern rear view mirrors use an electrochromic technology, which allows the mirror to automatically adjust its reflectivity based on the amount of light detected. The light button gives the driver more control over this process, allowing them to manually adjust the mirror's reflectivity to their preference.


When the light button is pressed or toggled, it sends a signal to the mirror's electrochromic coating, causing it to darken and reduce the amount of light that is reflected back to the driver's eyes. This can be particularly helpful when driving at night or in other low-light conditions, as it can help to reduce eye strain and improve visibility.


Benefits of the Light Button



  • Reduced Glare: The light button allows the driver to reduce the amount of glare from the headlights of vehicles behind them, making it easier to see and reducing eye strain.

  • Improved Visibility: By reducing the reflectivity of the mirror, the light button can help to improve the driver's overall visibility, particularly in low-light conditions.

  • Enhanced Safety: By reducing glare and improving visibility, the light button can help to enhance the driver's safety and reduce the risk of accidents.


Overall, the light button on the rear view mirror is a useful feature that can help to improve the driving experience and enhance safety on the road.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.