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gentex genk40a auto dimming rear view mirror: enhance your driving visibility logo

GENTEX GENK40A Auto Dimming Rear View Mirror: Enhance Your Driving Visibility Review

8

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Very good

Revainrating 4.5 out of 5  
Rating 
4.6
🚘 Car Mirrors, 🚗 Interior Car Accessories

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Details

Lift TypeManual
MaterialGlass
PositionRear
BrandGentex
Vehicle Service TypeCar
ShapeRectangular
See 1 more

Description of GENTEX GENK40A Auto Dimming Rear View Mirror: Enhance Your Driving Visibility

Gentex Automotive Quality with Aftermarket Wiring Harness. Features Homelink. Auto-dimming feature. Complete kit includes mirror, and wire harness.

Reviews

Global ratings 8
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Type of review

Revainrating 5 out of 5

This mirror is great!

This is an amazing mirror! No more garage door openers dangling from your visor, no more blinding headlights in the rear. It was easy to install and had almost everything you need. I used two additional devices and went straight to the fuse box. My fuse panel uses ATM fuses so I had to buy two five amp ATM fuses and use some plastic zip ties but that's about it. I highly recommend this product and am not afraid to install. It only took me an hour and it was from the moment I started pulling the

Pros
  • Decent performance
Cons
  • Periodicity

Revainrating 5 out of 5

Great performance for your car, great price.

Bought for our 2016 KIA Sorento and was impressed with the price compared to the dealer. Installation was easy: just run the wires in and along the top padding and behind the "A". a rack panel that is held in place by clips and can be removed with little effort. The rest "caught" through the access on the side of the dashboard and into the fuse box. Connections made with Add Circuit to existing open circuits. Installation took less than an hour and Homelink programming for my opener took less…

Pros
  • This is great
Cons
  • So far so good

Very good product. Looks factory, works great. I had no problems with an old garage door opener. But Homelink wasn't working with my new Chamberlin garage door opener. After calling Chamberlin and Homelink, Homelink sent me a repeater for a new garage door opener. Now everything worked fine. But in order to use the backup battery on the new opener, I have to keep the handheld remote in the car. Also, with the repeater, the security code on the Chamberlin garage door opener is now useless. I am…

Pros
  • Few competitors
Cons
  • Not bad

Revainrating 5 out of 5

This fits the 2020 Prius Prime perfectly!

I was hoping to get this stylish mirror for the Prius Prime I just bought but it wasn't an option on the XLE (mid-range) model I ended up buying . It would cost around $1000 to buy and install this stylish mirror from the dealer, so I found the GENK40A hoping it would fit. It turned out to be relatively easy to install and works absolutely perfectly. To install, I removed the ceiling cap and stock rear view mirror and installed a new mirror (easy). It's important to note that I had to cut out…

Pros
  • Great price
Cons
  • Good but not great

Revainrating 4 out of 5

Instructions were generic at best/minimum

I've had this for a few months while planning my approach and bought some auto trim tools first so as not to ruin my new car's finish or what that is, any car from which you need to remove the plastic panels. I have a new Honda CR-V and thought my chances of finding useful information about it were slim but I got lucky with it and the Honda forum had what I needed and hasn't changed that much since 2012 and 2013 evolved perfectly. Not only that but a link to Honda's instructions for a similar…

Pros
  • Good product for its price
Cons
  • Compatibility

Revainrating 5 out of 5

That's exactly what I wanted. Works perfectly.

Installation was incredibly easy - it took me about an hour and most of the time was spent checking the vehicle's wiring harness for 12vdc, switched 12v and ground wires to connect to find. (Get a good digital volt/ohm meter if you don't already have one!) It does exactly what I wanted - no compass or temp gauge, which I didn't want as I already have both. installed in my car. But it has Homelink buttons, so I no longer have to carry a separate garage door opener (yay!). The instructions for…

Pros
  • GOLS Certified
Cons
  • Safety

I would give this 5 stars if the included 'After Sale Cable' was labeled (or included wiring instructions) because this Homelink mirror/product is excellent. It works and works as advertised. That's good news. The bad news is that the installation was much longer and more difficult than the '1 hour' that other reviewers quoted. I'm a biomedical engineer who has actually installed X-ray machines in hospitals, so I know how to use the toolbox. Here are some installation tips that may help future…

Pros
  • Build Quality
Cons
  • The list will be long.

The first thing that came up was an offer to connect the ceiling's wires somewhere else, DO NOT do this. open the door. So the mirror will turn off and on again when power is restored. Turning off the mirror before going out is no use as it will turn on by default after a power cut and turn on again. I've noticed a lot of wiring questions and haven't been able to find complete instructions for this year and similar Altima. I have decided to include some of them in this report. See photos for…

Pros
  • practical matter
Cons
  • secret