Gentex 40A
Gentex 40A Gentex 40A Gentex 40A Gentex 40A Gentex 40A

Gentex 40a

Gentex Auto-Dim Mirror with HomeLink

This system offers added convenience and safety to the way you use your rear view mirror. Offering auto-dimming technology and the ability to sync to any HomeLink® connected devices.

Have a question about Gentex 40a? Click the blue button above.

Gentex 40a Overview


With Gentex's recent purchase of HomeLink®, all of your HomeLink options -- from mirror to module -- are available under one roof. HomeLink has been seamlessly integrated into the Gentex automatic-dimming mirror, giving drivers the ability to operate a wide variety of garage doors, estate gates, home security systems, lighting, interior electronics, and appliances. The three-button interface is located as an easy-to-install module, or the base of the rearview mirror for a convenient, battery-free, programmable solution that eliminates the need for traditional clip-on transponders. HomeLink is a registered trademark of Gentex Corporation.

Glare Management

Research shows that during nighttime driving, headlight glare from the vehicles traveling behind you can be blinding. Even after the glare is removed, an after-image remains on the eye's retina which creates a blind spot for the driver. This phenomenon, known as the Troxler Effect, postpones driver reaction time by up to 1.4 seconds. At 60 mph, a car will travel over 123 feet in this amount of time. Gentex auto-dimming mirrors make nighttime driving safer by detecting glare and automatically dimming to protect driver vision.


HomeLink Owners Manual

Gentex Auto Dimming Mirror Manual

Contact Attention to Detail Today!

Contact Us