Gentex HomeLink Autodimming Mirrors GNTX-313 and GNTX-453 Series comparison
Auto-Dimming Mirror with HomeLink® 313 vs. 453 Series Comparison Page
There are 2 main styles of Gentex
Auto-Dimming Mirrors with HomeLink® currently available that can be used in most vehicles, the older style
GNTX-313 series mirrors and the newer technology GNTX-453 series mirrors.
Both the 313 and 453 series mirrors have the series number stamped in the back
of the mirror for identification. This page, which is in no way "official", just
my observations, gives a comparison between these two styles of Gentex Auto-Dimming Mirrors with HomeLink® and identifies some of the improvements to the 453 series mirrors.
Both series include several mirrors with different combinations of features. All
313 and 453 series mirrors are Auto-Dimming Mirrors with HomeLink. Additional features
for both series are a compass display or a compass / outside temperature
display. In the OEM versions of these mirrors, there are also different colors for the compass and compass /
The first series of Gentex Auto-Dimming Mirrors with HomeLink®
is the GNTX-313 Series. This mirror series was used mainly in 2003 through 2005
model year vehicles. The 313 series mirrors are no longer produced by Gentex but
you may still be able to find them used. Beginning in 2006 an "A" was appended to the
end of the part number of the mirror to indicate the updated line of aftermarket
mirrors distributed by Mito Corporation.
There are OEM and Aftermarket
versions of Gentex Auto-Dimming Mirrors with HomeLink®. The main difference
between the OEM and Aftermarket versions is the channel they are purchased
through. OEM mirrors are produced for a specific vehicle brand and are sometimes
produced with features specific for that vehicle brand. For example,
Nissan/Infiniti OEM Gentex Auto-Dimming Mirrors with HomeLink use an Amber
compass display in some of their vehicles. Aftermarket Mirrors are currently only
manufactured with a Blue compass
The OEM and Aftermarket mirrors are
essentially the same. They look the same, use the same electronics and are all
produced by Gentex. OEM mirrors are sometimes stamped with the OEM vehicle brand
part number on the back of the mirror. Aftermarket mirrors are usually stamped
with the aftermarket Part Number on the back of the mirror; 50-GENK40 for
There is another
series of mirrors closely related to the 313 series mirrors; the 341 series.
GNTX-341 mirrors use the same technology as the 313 series mirrors but
adds map lights or 'mood' lights to the mirror. The 341 series of mirrors consists of the
50-GENK42 and 50-GENK60. These are also no longer produced by Gentex. There are also
some other OEM proprietary series of Gentex Auto-Dimming Mirrors with HomeLink® that will not be mentioned here.
For the 2006 Model vehicles Gentex began producing the next generation of
Auto-Dimming Mirrors with HomeLink®, the GNTX-453 series. This newer series of
HomeLink mirrors uses newer technology and has many improvements over the older 313 / 341 series mirrors. Some of these improvements are
in the comparison below.
The 453 series mirrors are direct
replacements for the 313 series mirrors and in most cases are plug compatible, meaning you can
upgrade your older 313 series mirror with a newer 453 series mirror without
having to make changes to the wiring in your vehicle.
You can identify the
Gentex mirror series by a stamp on the back of the mirror housing.
Some of the advantages the GNTX-453 series mirrors have over the GNTX-313 series mirrors are listed here:
visible power indicator.
Improved buttons -
molded from black plastic, dual contact points, more solid feel.
sensor with Z-Nav compass
technology providing faster, more
accurate heading indication and calibration.
These pictures show the appearance difference between the GNTX-313
(left) and newer GNTX-453 (right) series mirrors. The newer mirror
has a sleeker shape, larger diffused power indicator and smaller
buttons. The 453 series mirrors also have a more uniform look because
the front photo sensor and power indicator match in appearance.
The connector for the wire harness on the back of the 453 mirror has been moved
to the center of the mirror housing just below the mounting arm allowing
the wire harness to be better hidden.
The newer housing design of the 453 series mirrors is also
sturdier than the older 313 series
313 series -
Auto-Dimming Compass with HomeLink
453 series -
Auto-Dimming Compass with HomeLink
Here you can see the difference in the photo sensors that detect ambient
light and the presence of headlights from behind. The older 313 series
mirrors have open holes in the mirror housing that allow light to reach the
sensors. This also lets dust and cleaner into the mirror housing. The newer 453
series mirrors have clear diffusers over the photo sensors that seal the
313/341 series - open holes in housing expose light
453 series - diffuser sealed light sensors
The LED power indicator for the auto-dimming feature on the 453 series
mirrors is larger and easier to see. It uses the same clear plastic
diffuser as the front photo sensor which makes it more visible and gives
a uniform appearance to the mirror face.
313/341 series - LED Power indicator
453 series - Larger, LED power indicator
These pictures show the difference in the mounting arms
between the 313 and 453 series mirrors.
The picture on the left shows the 313 mounting arm with the compass
sensor attached and shows the 453 arm. The compass sensor on the 453 series
mirrors is no longer mounted externally on the arm. It has been moved from the
mounting arm base to a concealed location inside the mirror housing.
The picture on the right shows the 313 and 453 series mounting arms
side by side so you can see the additional mass of the 453 mounting arm.
Notice the thickness difference circled.
313/341 series (left) with compass sensor
and 453 series
313 (left) and 453
(right) series mounting arms.
whole 453 mounting arm is
the base (circled) is much stronger
Another improvement to the 453 series mirrors is in the
buttons. The older 313 series buttons are molded from white plastic and
painted black. The symbols on the button faces are made by a stencil, exposing the
white plastic underneath the black paint.
The 453 series buttons are molded from black plastic and
have the symbols painted in white on the button face.
313/341 series - white plastic buttons painted black
453 series - black plastic molded buttons
The electronic contact points behind the buttons have also been improved in
the 453 series mirrors. The 313 series mirrors use a single contact
point while the 453 series mirrors have dual contact points
on each button. This
provides a more solid feel when you press a button and insures that the
button functions accurately.
313/341 series - single contact points
453 series - dual contact points
These pictures show the difference in the location and
compass sensor for the 313 and 453 series mirrors.
On the 313 series mirrors the compass sensor is mounted
externally on the mirror mounting arm base and has wires running back to the
mirror circuit board.
The 453 series mirrors use a new Gentex
proprietary 3 axis digital Z-Nav compass
transducer. This sensor is integrated onto the mirror circuit board inside the
mirror housing eliminating the bulky addition to the mirrors mounting
base. This new compass sensor is also more accurate and provides
faster calibration than the older compass technology.