Gentex Corporation is a technology leader specializing in electro-optical products for the automotive industry, fire protection signaling appliances, and aerospace electronics.
Gentex Corporation is a global technology company best known for its innovation in digital vision, connected car features, and dimmable glass. It is the leading supplier of automatic-dimming rear-view mirrors and electronics to the automotive industry, including the widely used HomeLink® vehicle-to-home automation system. Gentex also manufactures dimmable aircraft windows and advanced smoke sensing technology for the aerospace sector.
In addition to its automotive and aerospace divisions, Gentex is a major manufacturer of fire protection products. The Gentex Fire Protection division produces high-quality signaling appliances such as strobe lights, horns, speakers, and smoke alarms for commercial and residential applications. These products are designed to meet rigorous building codes and safety standards, ensuring reliable evacuation signaling and hazard detection.
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To program HomeLink, first clear any previous codes by holding the two outer buttons until the indicator flashes. Then, press and hold your handheld remote button and the desired HomeLink button simultaneously until the light flashes rapidly. For rolling code openers, you may also need to press the 'Learn' button on the garage opener unit.
Manuals, installation sheets, and technical data for Gentex fire protection products (smokes, horns, strobes) are typically available on the Gentex Fire Protection support website.
A chirping sound usually indicates a low battery or a fault. Replace the battery with a fresh 9V battery (if applicable). If the device is hardwired, ensure the power connection is secure. If chirping persists, clean the unit to remove dust or replace the unit if it has reached its end of life.
Gentex auto-dimming mirrors use sensors to detect glare from headlights of vehicles approaching from the rear. The mirror automatically darkens the glass via electrochromic technology to reduce glare and improve driver vision.