What is the function of the switch on the Highlander's rearview mirror?

[Tyra]

The switch on the Highlander's rearview mirror is used to toggle the anti-glare function. Pressing the switch can turn the auto-dimming feature on or off. When the indicator light is illuminated, it means the anti-glare function is activated, and the interior rearview mirror will automatically reduce reflection based on the intensity of the headlights from vehicles behind. Currently, there are two types of anti-glare interior rearview mirrors: manual and automatic. Manual anti-glare rearview mirror: This type of mirror uses optical principles to reduce glare. It features a dual-reflectivity mirror. When the driver feels that the reflected light is too strong and dazzling, they can manually adjust the mirror angle by moving the adjustment lever, causing the mirror to tilt. In this position, the mirror's reflectivity decreases, naturally reducing the intensity of the light. Automatic anti-glare rearview mirror: Higher-end models are equipped with automatic anti-glare rearview mirrors. These mirrors have a photosensitive diode installed behind the mirror surface. When the diode detects strong light, the control circuit applies voltage to the ionized layer on the mirror surface. Under the influence of the voltage, the mirror darkens to achieve the anti-glare effect.

[LaCali]

I've been driving the Highlander for a while now, and that switch on the rearview mirror controls the auto-dimming function. Simply put, when driving at night if headlights from behind are too glaring, pressing the switch activates the feature - the mirror automatically darkens to reduce light reflection, maintaining clear visibility without straining your eyes. You can manually toggle it on/off as needed; when turned off it reverts to a normal mirror. I remember once forgetting to activate it during a mountain night drive - the headlights behind turned my view completely white, nearly causing an accident. Since then, I've made it a habit to check the switch status upon entering the car. This practical design prioritizes safety - I'd recommend novice drivers practice using it, especially during foggy or rainy conditions when light scatters unpredictably. Also, avoid cleaning the mirror with strong acidic cleaners as they damage the coating - a soft cloth wipe suffices for routine care. Keeping the switch clean is equally important.

[LeNicole]

I really love this detail on the Highlander! The rearview mirror switch controls the anti-glare function; when turned on, the sensor detects strong light from behind (like high beams) and automatically dims the reflection to prevent glare. Turning off the switch deactivates the feature. Some models even allow adjusting the sensitivity of the sensor, but I’ve found Toyota’s version basically works with just one click—simple and reliable. I always tell fellow car enthusiasts that this feature stems from the evolution of automotive safety technology, significantly reducing the likelihood of nighttime accidents. When using it, avoid unnecessary adjustments under direct sunlight or when entering/exiting tunnels to prevent misjudgment. If the switch malfunctions or the mirror doesn’t dim, it’s usually due to dust stuck in the button or a dirty sensor—just clean it with a fine brush, no need to panic. Overall, it enhances the driving experience and is definitely worth trying.

[EmeryDella]

I usually drive my Highlander with my family, and the small switch on the rearview mirror is quite simple: turn it on to activate the anti-glare function, and turn it off to revert to a regular mirror. I always keep it on to prevent my kids in the back seat from being dazzled by headlights at night. It's recommended to keep it enabled during nighttime—safety first. If it malfunctions, check if the switch is stuck or if there's dirt on the surface; wiping the mirror with a clean cloth a few times a week can prevent issues. It might also become less responsive when the battery is low, but the Highlander's battery is generally sufficient. Remember not to forget cleaning during snowy weather, as dirty snow blocking the sensor can disable the function—this is crucial.