Gentex K21 Auto-Dimming Rear View Mirror w/Compass and Temp

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Gentex Auto Dimming Mirro w/Compass and Temperature
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Features

  • The Gentex K21 Auto-Dimming Rear View Mirror reduces eyestrain and driver fatigue
  • High-tech sensors and advanced circuitry recognizes and eliminates dangerous rear-approaching light
  • The K21 Auto-Dimming Rear View Mirror is equipped with a self-calibrating digital compass
  • Integrated remote exterior thermometer digitally reports outside temps and ice warnings
  • The K21 Auto-Dimming Rear View Mirror comes complete with detailed installation instructions and all mounting hardware
  • Installation of the mirror's electronic components requires some hard wiring (see Installation Guide tab for details)
  • Available with the optional Gentex Wire Cover for the most professional-looking installation that conceals loose wires (not necessary for all vehicles—see note below)
  • Your Gentex K21 Auto-dimming Rear View Mirror is backed by a 3-year / 36,000 mile warranty

Description

Headlight glare and your rear view mirror make a dangerous combination. Eliminate this volatile mixture with the Gentex K21 Auto-Dimming Rear View Mirror.

The K21 Auto-Dimming Rear View Mirror detects dangerous rear-approaching light and eliminates it with "intelligent" circuitry. What's more, less glare means less eyestrain and driver fatigue.

As if that weren't enough, the K21 Auto-Dimming Rear View Mirror comes with a self-calibrating digital display compass. The mirror even has an exterior thermometer that displays temps and ice warnings.

The windshield-mounted mirror comes complete with detailed installation instructions and all necessary hardware - perfect for the experienced do-it-yourselfer or professional installer with some wiring required. And, the Auto-Dimming Rear View Mirror comes with 3-year / 36, 000 mile warranty. See what a difference the K21 Auto-Dimming Rear View Mirror can make.

Notes

  • Installation of the mirror's electronic components requires some hard wiring (see Installation Guide tab for details)
  • The Gentex Wire Cover is highly recommended if there is 3" or more space between your mirror and the headliner. It conceals otherwise loose and visible wires running to the mirror. Select this part under "optional accessories" above.

Average Customer Rating

  (161)
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Excellent Product

Posted on 11/04/2009 by Michael G R. - 2002 Chevy Silverado (Chesapeake,VA)

Appearance
Ease of Installation
Price/Value
Quality

"I love my new mirror. My truck didn't come with this option, but I wanted it. I found it here at Auto Anything for a fair price, installation was about an hour, and it looks great."

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About Michael G R.
Vehicle
2002 Chevy Silverado
I use my vehicle for
commuting and work
 
Delivered as promised

Posted on 10/19/2009 by Lowell S. - 2004 Toyota Highlander (Lebanon,OR)

2 of 2 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"The new mirror worked great and I was able to use existing wiring for the power lead, and only had to run the temperature probe wire. Our new car did not have the outside temperature option like our old car. My wife and I did not think we would miss it, but it turned out the temperature feature was our most missed feature. The temperature reading is very accurate and my wife is now a a happy woman."

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About Lowell S.
Vehicle
2004 Toyota Highlander
I use my vehicle for
commuting and family activities
 
great feature

Posted on 09/09/2009 by Ruth M. - 2008 Ford F-250 (Palatine,IL)

3 of 4 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"It's a great feature to have in your vehicle. The unit should come with the optional wire cover. It really should be part of the unit. I would appreciate one at no cost."

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About Ruth M.
Vehicle
2008 Ford F-250
I use my vehicle for
Work and pleasure
 
Awesome mirror

Posted on 07/31/2009 by Donald L. (Denver,CO)

3 of 3 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I purchased this mirror for my 2006 Tocoma and I am really happy with it. The installation was easy and the mirror works perfectly. I would recommend this mirror to anyone."

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About Donald L.
 
Greaat product

Posted on 05/07/2009 by Scott M. - 1991 Ford Explorer (Boring,OR)

3 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"very easy to install, I put one in my Escape first, and had to have one in the Explorer also."

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About Scott M.
Vehicle
1991 Ford Explorer
I use my vehicle for
commuting, hunting, travel, etc.
 
Genex K21

Posted on 04/22/2009 by Steve D. - 2008 Ford F-250 (Missoula,MT)

1 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Very easy install. This is a high quality product and looks OEM. The price is a little high, but once installed it perfoms making it a good overall value."

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About Steve D.
Vehicle
2008 Ford F-250
I use my vehicle for
Commuting, Hunting, Fishing, Camping, Travel
 
2008 Ford 250 4x4 and 2003 Ford 4x4

Posted on 03/11/2009 by Jeffery S. - 2008 Ford F-250 (Payette,ID)

4 of 6 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"This is an excellent product.It was a complete package and a buddy of mine came over and we both put them in our trucks.The job took about a hour and fifteen minutes each and you cannot tell them from factory.I had estimates from dealers as high as $560.00 with a little time you can do it yourself.The service ordering was great and the instructions were clear and to the point.Great Product!!!!"

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About Jeffery S.
Vehicle
2008 Ford F-250
I use my vehicle for
travel
 
Lot of Bang for the Buck

Posted on 03/07/2009 by Russell R. (Grand Haven,MI)

4 of 4 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"My Tacoma did not have a compass or temp guage so by adding this I got both plus an auto dimming mirror. The install in my vehicle took about 5 hrs but mostly because I one of the quick connects off the temp cable pulling it thru the firewall, so be careful. I actually found accessory power in the overhead counsel and tapped into that, it was easy to find with a meter and only had to run the temp cable all the way up. I works and looks great and is so nice to have outside temp now!"

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About Russell R.
Vehicle
2009 Subaru Outback
Vehicle
2009 Toyota Tacoma
 
Repaced My 2009 Mustang GT Prem. Mirror

Posted on 03/05/2009 by Richard Z. - 2009 Ford Mustang (Escondido,CA)

1 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"My 2009 Mustang did not have the outside temperature feature. I replaced it with the Gentex K21 and it works great. It took about an hour to install with no problems."

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About Richard Z.
Vehicle
2009 Ford Mustang
I use my vehicle for
commuting and pleasure
 
Gentex K21 Mirror

Posted on 02/20/2009 by Jimmy C. - 2000 Nissan Frontier (Greenville,TX)

1 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Installation was very easy on the 2000 Nissan Frontier Pickup. No problems at all and it works great. Took about 1 1/2 hours. Installation was a little harder on the 2005 VW Golf because of the covers under the dash and under the hood. It is pretty hard to get the wires where they should go. Took about 3 hours and once in it works great. Could not get the glue off for the old mirror but just left it and it doesn't bother anything and you don't notice it."

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About Jimmy C.
Vehicle
2000 Nissan Frontier
I use my vehicle for
Traveling in Colorado mostly.