Gentex K31 Auto-Dimming Rear View Mirror w/Compass, Temp and Lights

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Gentex Auto Dimming Mirror w/Compass, Temperature and Lights
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Features

  • The Gentex K31 Auto-Dimming Rear View Mirror reduces eyestrain and driver fatigue
  • High-tech sensors and advanced circuitry recognizes and eliminates dangerous rear-approaching light
  • The K31 Auto-Dimming Rear View Mirror is equipped with a self-calibrating digital compass
  • Integrated remote exterior thermometer digitally reports outside temps and ice warnings
  • Driver and passenger-side map lights provide handy illumination
  • Installation of this windshield-mounted mirror's electronic components requires some hard wiring (see Installation Guide tab for details) - wiring experience or professional installation recommended
  • The K31 Auto-Dimming Rear View Mirror comes complete with detailed installation instructions and all mounting hardware
  • 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 K31 Auto-dimming Rear View Mirror is backed by a 3-year / 36,000 mile warranty

Description

Ordinary rear view mirrors are a pale reflection of this fully-loaded K31 Auto-Dimming Rear View Mirror.

The K31 Auto-Dimming Rear View Mirror detects dangerous rear-approaching light and eliminates it with "intelligent" circuitry. And, less glare means less eyestrain and driver fatigue. Plus, your night driving vision stays sharp.

In addition, the K31 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. As if that weren't enough, it's equipped with handy driver and passenger side map lights.

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 k31 Auto-Dimming Rear View Mirror comes with 3-year / 36, 000 mile warranty. See what a difference the 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.

Average Customer Rating

  (64)
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Price/Value Price/Value
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Great Product

Posted on 11/21/2008 by David C. - 2007 Toyota Tacoma (Salisbury,MD)

Appearance
Ease of Installation
Price/Value
Quality

"This mirror Rocks. As good as advertised, it looks good and works well. Relatively easy to install. Good temperature and directional accuracy. Autodimming feature is great."

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About David C.
Vehicle
2007 Toyota Tacoma
 
Excellent Addition

Posted on 10/01/2008 by Warren S. - 2005 Ford Mustang (Cape Girardeau,MO)

Appearance
Ease of Installation
Price/Value
Quality

"I have had a few new cars over the years and got used to the compass and temp on the mirror as well as the auto dimming feature. I recently bought an 05 Mustang and it did not have this feature, so I got it here and I am very happy."

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About Warren S.
Vehicle
2005 Ford Mustang
I use my vehicle for
Personal
 
Gentex Review

Posted on 09/01/2008 by Craig W. - 2005 Chevy Impala (Mpls,MN)

1 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"It's all I hoped it would be!"

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About Craig W.
Vehicle
2005 Chevy Impala
I use my vehicle for
Commuting, general travelling about town
 
Not one for one installation.

Posted on 06/04/2008 by Michael B. - 2005 Chrysler PT Cruiser (Baldwin,NY)

2 of 3 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I may have assumed that this mirror would be a one for one installation. The PT cruiser I own is a dream cruiser, series four, convertible, "High Output Turbo", with an electronic mirror factory installed, but it doesn't have auto dimming. It will take some disassembly to install, but I an capable to perform the installation. One feature that will not work with this mirror is the Map lights when the doors are open. Why no wiring diagram??"

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About Michael B.
Vehicle
2005 Chrysler PT Cruiser
I use my vehicle for
Work, commuting etc.
 
Chevy Colorado

Posted on 03/13/2008 by Don O. - 2007 Chevy Colorado (Havre,MT)

3 of 3 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I have purchased Gentex products before, and as always the product looks and works wonderful."

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About Don O.
Vehicle
2007 Chevy Colorado
I use my vehicle for
Pleasure
 
Like it

Posted on 02/19/2008 by Wayne S. (Aloha,OR)

2 of 2 people found the following review helpful.

"Mirror feels solid and well made. Once I figured where the right wires were in my truck the installation took about 30 minutes"

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About Wayne S.
 
self dimming, compass, temp gentex mirror

Posted on 02/16/2008 by Thomas D. - 1996 Mitsubishi 3000GT (Coloado Springs,CO)

3 of 3 people found the following review helpful.

"Excellent seller and product. Used Drive-in sound to install. All went well and I'm now enjoying all the features---Oh yes, forgot to mention mirrors also have lights as it's on a convertible!"

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About Thomas D.
Vehicle
1996 Mitsubishi 3000GT
I use my vehicle for
everything except serious 4 wheeling.
 
Gentex Auto-Dimming Mirror is a MUST HAVE!

Posted on 02/12/2008 by Mark F. - 1995 Ford Mustang (Vancouver,WA)

3 of 4 people found the following review helpful.

"This is the 3rd GENTEX mirror I have installed in a vehicle I own. This is a option that I can't live without in cars that I own. Even my 72 Chevy pick-up has one. Great quality; easy to install and very functional."

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About Mark F.
Vehicle
1995 Ford Mustang
I use my vehicle for
Commuting
 
Better than factory!

Posted on 12/31/2007 by Christopher W. - 2004 Chevy Impala (Glenn Dale,MD)

2 of 2 people found the following review helpful.

"First, installation was a breeze factory clip plugs right into the Gentex( only thing extra that needed connecting was temp....5 mins to install)I do alot of early....early morning driving to work. Before the gentex k31 i found myself constantly ajusting my mirror to stop the cars behind me from blinding me (because we all know those people that have their brights on and have no clue) now with the auto dimming, brights are not a problem anymore.....I NOW CAN DRIVE! NOT EVADE BRIGHTS!"

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About Christopher W.
Vehicle
2004 Chevy Impala
I use my vehicle for
everything
 
A good product at a great price...

Posted on 09/11/2007 by Gerald B. - 2006 Toyota Corolla (Watsontown,PA)

5 of 5 people found the following review helpful.

"The mirror was easily installed by a local installer in 45 minutes. Everything works as expected, though my wife found the dimming to make the distance between vehicles harder to judge. I'm sure that this is just something that you need to get used to. Overall, good product."

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About Gerald B.
Vehicle
2006 Toyota Corolla
I use my vehicle for
commuting/hunting.
 
Excellant product

Posted on 08/31/2007 by Luay A. - 2006 Mitsubishi Pajero (Springfield Gardens,NY)

1 of 1 people found the following review helpful.

"I bought until now three mirror of this item and found them very very useful especially the light on the motorway during the night. Now I really looking to fit such mirror in every car I drive. excellant product"

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About Luay A.
Vehicle
2006 Mitsubishi Pajero
I use my vehicle for
Leasiure, work
 
Hey! I dig it!

Posted on 06/06/2007 by Robert A. J. - 2007 Honda Odyssey (Grand Rapids,MI)

4 of 4 people found the following review helpful.

"The Gentex K31 mirror is fantastic! It makes driving a real adventure with the fun of knowing what direction you're really going and what the temp is outside. Installation by a local auto parts store was quick and less expensive than I thought it would be..."

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About Robert A. J.
Vehicle
2007 Honda Odyssey
I use my vehicle for
Activities and travel
 
excellent..must in any car

Posted on 06/02/2007 by Mohammad A. - 2006 Nissan Murano (Makkah,AE)

1 of 1 people found the following review helpful.

"excelent and easy to install..it is a must in any car..I hope it will be available for all models listed."

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About Mohammad A.
Vehicle
2006 Nissan Murano
I use my vehicle for
everything
 
Love it!

Posted on 04/14/2007 by Holton W. - 2002 Nissan Altima (Spokane,WA)

2 of 2 people found the following review helpful.

"This mirror looks and works great! It took a while to hook up but the instructions helped out quite a bit. Hooking up the powers is almost identical to hooking up a stereo system's power (same wires). The compass is very accurate and the map lights offer a pleasant yellow/green soft LED light which helps reduce the effects on your night vision (as opposed to the old standard white lights)."

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About Holton W.
Vehicle
2002 Nissan Altima
I use my vehicle for
commuting, family
 
GENTEX K31-

Posted on 04/03/2007 by Ron T. (Farwell,MI)

"Read all the reviews and decided to buy this mirror, It took me a little longer than normal to install this into my 05 Colorado. I had to call the tech support on clarity of the wiring. They helped me out in a very short time period with excellent instructions. Once installed everyting worked great. As other people have stated the map lights are dimmer than the factory ones, but other than that everything is great."

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About Ron T.
I use my vehicle for
COMMUTING, AND TRAVEL
 
Awesome

Posted on 03/12/2007 by Richard D. (E L Paso,TX)

"The product is an excellent mirror. The exact thing I was looking for. Thanks"

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About Richard D.
 
GREAT product - install somewhat challenging

Posted on 02/17/2007 by Bryan M. - 1979 GMC Truck C/K (Portland,TX)

"The K31 isn't listed as compatible with my 79 GMC. However, I went to my local Ace Hardware store to get a replacement set screw similar to the OEM mirror's, and it fits perfectly. The map lights are not terribly bright, but they are effective. Get the "optional" cable cover."

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About Bryan M.
Vehicle
1979 GMC Truck C/K
I use my vehicle for
family camping, travel, grocery store
 
Awsome product - manual and support lacking

Posted on 02/12/2007 by Henry A. - 2006 Chrysler Sebring (Corona,CA)

"Found the mirror to be of excellent quality. Was wondering about the dome light function of the car, and if it would still work. This wire is on pin 6 in the factory harness. No mention of that function in the manual. I checked ignition, constant and ground wire locations - same as factory harness. Emailed vendor for advice on dome light. Since it was the weekend, got no response. So I went for it, and plugged the mirror into the factory harness. All functions including the dome light work perfectly. Plugged the temp sensor into the empty pins 4 and 5 of the factory harness. Got an answer from my email on Monday - saying the dome light was not supported, did not work, and to not use the factory harness.... Oh well. Glad I did not listen to their tech support. Great product. It was my wife's Valentines gift. She loves it.Also the vendor needs to update their model year support. Indicated the mirror worked on Sebrings up to 2004. It worked perfect on our 2006. They could also include a basic wiring diagram along with the printed instructions."

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About Henry A.
Vehicle
2006 Chrysler Sebring
I use my vehicle for
work and pleasure
 
Great mirror

Posted on 02/09/2007 by Matthew B. - 1995 Ford Probe (Rockville,MD)

"This was a replacement mirror for the stock no frills mirror on my '95 Probe GT. All the features work great. The only drawback was the installation. I paid $250 for a shop to install the mirror but they did a great job."

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About Matthew B.
Vehicle
1995 Ford Probe
I use my vehicle for
commuting
 
A touch of class

Posted on 02/02/2007 by Steven Espinosa E. (Kingwood,TX)

"I recently purchased the Gentex k31 Auto-Dimming rear view mirror w/compass,temp and lights. I love the display of the temperature and the compass. Map lights come in handy. The Auto-dimming feature is especially good. Now, when a vehile is driving with their high beams on, my eyes are not bothered. Overall, I'm very happy with my Gentex k31. This is for sure, a touch of class in my Mazda3 itouring."

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About Steven Espinosa E.
 
no more flipping the lever

Posted on 01/30/2007 by Ruben G. - 2006 Ford Fusion (San Antonio,TX)

"It was easy to install and it's very functional. The maplights work great too. Ruben"

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About Ruben G.
Vehicle
2006 Ford Fusion
I use my vehicle for
going everywhere!
 
Gentex K31

Posted on 11/30/2006 by James L. - 2003 Chevy Impala (Reading,PA)

"Installation was easy on a 2003 base Impala. Wiring was already in place for map lights, I just positioned temp sensor and ran wiring. Attached sensor wires at #4 & 5 terminal in existing connector. All done, about an hour."

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About James L.
Vehicle
2003 Chevy Impala
 
Seamless

Posted on 11/20/2006 by George M. - 2006 Dodge Durango (North Sioux City,SD)

"I titled my review seamless because it was. From ordering online to having my local automotive electronics dealer install the mirror. Everything went 1-2-3 with no problems. My electronics dealer was so impressed with the mirror that they wanted to know how they could purchase them to sell. And the best part the mirror performs just great. George M."

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About George M.
Vehicle
2006 Dodge Durango
I use my vehicle for
traveling for my work.
 
Great mirror

Posted on 10/29/2006 by Eric M. - 2006 Honda Civic (El Cajon,CA)

"I installed this mirror in a 2006 Honda civic. The directions are excellent. They are easy to read and understand. They detail every step of the installation. The mirror works flawlessly. I like the digital compass and temp readout. And the autodimming feature as well."

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About Eric M.
Vehicle
2006 Honda Civic
 
What a luxury mirror for Nissan

Posted on 10/26/2006 by Joseph J. - 1999 Nissan Altima (Marietta,GA)

"My Altima GLE didn't equip with Auto-Dimming Mirror and didn't have Compass and Temperature displays in the car. I love to upgrade my car all the time. So, I bought the Gentex K31 Auto-Dimming Mirror, which it comes with all the great features I needed exactly. Now, my car looks even more luxury inside. I love the compass and temperature display, and the special color reading lights at night! I love this mirror! The installation was not as easy as I thought. I had the professionals from Best Buy installed for me for additional $100, where other places charge at least $150 to do the job. It took them about 1.5 hours to complete the whole installation. I highly recommend people take it to the professionals if you are not sure what you are doing because it requires some hard wiring and taking panels out and puting everything back nicely."

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About Joseph J.
Vehicle
1999 Nissan Altima
I use my vehicle for
Commuting, family, and traveling.
Showing 1 - 25 of 64 Customer Reviews
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