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

Please select your vehicle below for custom pricing

View larger image
Gentex Auto Dimming Mirro w/Compass and Temperature
Additional Views
List Price:
AutoAnything:
Shipping: Free Shipping
Availability:
Financing:
Bill Me Later - Buy Fast. Feel Secure. Pay Later!
Customer Rating: Customer Rating
Loading... Select your vehicle
Product InfoInstallation GuideManufacturer InfoReturn Information

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

  • 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.

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

Average Customer Rating

  (131)
Appearance Appearance
Ease of Installation Ease of Installation
Price/Value Price/Value
Quality Quality
Sort By
Gentex K21 Auto-Dimming Rear View Mirror w/Compass and Temp

Posted on 07/23/2008 by Robert S. (Melbourne,FL)

Appearance
Ease of Installation
Price/Value
Quality

"This product with the extra perks is awesome.Very happy with it and was easy to install."

Was this review helpful? Yes No

About Robert S.
I use my vehicle for
everything
 
Satisfied customer

Posted on 07/04/2008 by Robert S. - 2008 Ford Mustang (Shippensburg,PA)

Appearance
Ease of Installation
Price/Value
Quality

"Works and looks great! Looks as good as any equipement that was installed in the factory."

Was this review helpful? Yes No

About Robert S.
Vehicle
2008 Ford Mustang
I use my vehicle for
pleasure
 
review

Posted on 05/28/2008 by Jim L. - 2008 Ford F-250 (Mesquite,TX)

1 of 2 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"works as advertised - no problems."

Was this review helpful? Yes No

About Jim L.
Vehicle
2008 Ford F-250
I use my vehicle for
everyday driver - work and farming
 
gentex k21

Posted on 04/25/2008 by Peter M. - 2008 Ford F-250 (Millington,MI)

0 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"This mirror looks like factory one and was very easy to install.The price was great. I have refurred it to three others. I love it."

Was this review helpful? Yes No

About Peter M.
Vehicle
2008 Ford F-250
I use my vehicle for
towing,commuting,travel,everyday driving.
 
High quality mirror/compass/temp

Posted on 04/19/2008 by Ron N. - 2005 Chevy Equinox (Columbus,IN)

2 of 3 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Install wasn't too terrible. Took 3 hours. Instructions were decent. The only portion of the instructions that left a lot to be desired was the location of the temp probe. It was not clear at all. Other than that, good instructions! The only other negative point was the fact that I was not given the right wire t-tap for tapping into the power supply line on the ignition harness. I had to go buy a 10awg t-tap. They only supply 14-22 gage t-taps."

Was this review helpful? Yes No

About Ron N.
Vehicle
2005 Chevy Equinox
 
Mirror on 05 Tucson

Posted on 03/18/2008 by Harold M. - 2005 Hyundai Tucson (Houston,TX)

0 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Excellent appearance on my 05 Tucson. Needed to add a new crysler button mount below the existing mount; using a 3" wire cover into the old mount looks good."

Was this review helpful? Yes No

About Harold M.
Vehicle
2005 Hyundai Tucson
 
Satisfied

Posted on 02/18/2008 by Garth F. - 2007 Nissan Armada (Layton,UT)

1 of 2 people found the following review helpful.

"I have ordered this mirror thru a friend of mine in the USA as I live in Dubai United Arab EMirates. I picked it up from him last week of January while attending a conference in Reno NV. It would have cost as much as US$ 150 to have it shipped overseas. A friend of mine has helped instaling the product yesterday and I can say that I am satisfied with the way it performs."

Was this review helpful? Yes No

About Garth F.
Vehicle
2007 Nissan Armada
I use my vehicle for
work / commuting / family activities
 
Gentex K21 Auto-Dimming Rear View Mirror w/ Compass and Temp

Posted on 02/08/2008 by Patrick M. - 2007 Scion xA (Skokie,IL)

1 of 2 people found the following review helpful.

"This mirror is awesome! I installed it on a 2007 Scion xA. It helps me get figure my way around town with its built in compass. The temperature gauge is also helpful and gives me an instant readout. I can't imagine another day without it."

Was this review helpful? Yes No

About Patrick M.
Vehicle
2007 Scion xA
I use my vehicle for
commuting
 
Happy Driver

Posted on 01/21/2008 by Barbara B. - 2003 Chevy Trailblazer (Yreka,CA)

1 of 2 people found the following review helpful.

"I had used stand alone themometers in the past and they never worked that good. The one I had stopped working and my husband found this mirror for me. I love it. It is very accurate and a nice looking addition to my car. It took about 2 hours to get it installed but there were no problems doing it. It came with everything needed so the job was an easy one. I had the opportunity to use it at night and see just how well the dimming feature works and the car lights behind me didn't bother me at all. This mirror was an excellent choice for us."

Was this review helpful? Yes No

About Barbara B.
Vehicle
2003 Chevy Trailblazer
I use my vehicle for
Family and travel.
 
The Best....Don't hesitate to buy this product

Posted on 01/20/2008 by Joe N. - 2007 Honda Accord (Vero Beach,FL)

2 of 3 people found the following review helpful.

"At fist I was skeptical because of the much cheaper price tha other sites. I took a chance, bought it, and had it put on my wife's Honda Accord. Extremely accurate."

Was this review helpful? Yes No

About Joe N.
Vehicle
2007 Honda Accord
I use my vehicle for
Going anywhere I want
View all customer reviews for this product