What is the function of the illuminated rearview mirror?
2 Answers
The functions of the illuminated rearview mirror include side assist, electric heating, anti-glare, blind spot display system, and rear image detection. Side Assist and Lane Change Assist: Everyone is aware of the dangers of blind spots in the rearview mirror. Many car models now come with side assist or lane change assist systems. For example, in some models, if a vehicle is approaching rapidly from behind, a warning light located on the outer rearview mirror frame will illuminate. Electric Heating: During rain, the rearview mirror can easily become obscured by raindrops, making it difficult to see clearly. Electric heating works by using heating wires embedded behind the mirror to ensure the surface remains clear. Anti-Glare: Driving at night and encountering sudden strong light poses a significant safety hazard. The automatic anti-glare function detects strong light and darkens the mirror to reduce glare. Blind Spot Display System: This feature employs a new method to expand the driver's field of vision, including assistance when encountering blind spots. Currently, few car models have this function. The principle relies on a camera located beneath the right rearview mirror. Rear Image Detection: When parking on the roadside and exiting the vehicle, it's necessary to check behind for approaching people or vehicles to avoid accidents. The rear image detection feature automatically activates the camera when the vehicle is turned off, displaying the side and rear view on the screen to help passengers observe and prevent collisions when opening the door, especially with approaching vehicles or pedestrians.
The small light on the rearview mirror usually indicates that the anti-glare function is active. My car has this feature too, and it's particularly noticeable when driving at night. It automatically senses the bright lights from vehicles behind and slightly darkens the mirror surface to avoid glare. This makes driving less tiring and improves visibility ahead. I usually keep it in automatic mode, where the system adjusts based on light conditions—the light being on means anti-glare is working. If you don't want automatic, some cars have a manual switch button. This feature is quite practical, especially for long-distance driving or in urban areas with many lights. I think it's thoughtfully designed—the small light reminds me it's protecting my visual safety. Just be careful not to let the rearview mirror sensor get dirty or foggy, as it might malfunction and the light won't turn on.
