Many drivers are familiar with the manual adjustment switch on their car’s rear-view mirror. However, modern vehicles often feature additional buttons on these mirrors, offering functionalities beyond simple angle adjustments. Just as a car’s USB port can offer more than expected, these buttons can serve a variety of purposes depending on the car’s year, make, and model.
An auto-dimming button is a common feature. Pressing this button typically toggles the function on or off, indicated by a light. When activated, the mirror automatically adjusts to reduce glare from headlights behind you, enhancing visibility and safety.
Beyond auto-dimming, some cars include buttons for features like linking to home automation systems or accessing emergency assistance.
Brand-Specific Rear View Mirror Features
Toyota models may include a HomeLink button, allowing control of garage doors and other home automation devices after programming. A button to switch between nighttime and daytime mirror brightness may also be present.
Hyundai vehicles can feature HomeLink buttons and a BlueLink button for accessing Hyundai-specific services, including emergency assistance. A subscription to BlueLink is required for some features, often including a trial period with purchase.
Polestar offers a unique feature on some models: a button that switches the mirror to display the rear-view camera feed. When the turn signal is activated, the camera view adjusts to show the lane you intend to enter, aiding in collision avoidance.
Upgrading Your Rear View Mirror
If your car lacks these advanced features, upgrading your rear-view mirror is an option. Retailers like Amazon offer various replacement mirrors. Ensure compatibility with your car’s size and mirror angle before installation.
As of the time of writing, a Wolfbox 10-inch mirror is available for $190, offering features like swipe controls, camera modes, Wi-Fi connectivity, GPS, and loop recording. An Advent Gentex Frameless Rear View Mirror is available for $218 and includes HomeLink functionality.
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