Auto Dimming Mirror for Select Chevrolet / GMC Trucks

This mirror only works in Chevrolet and GMC trucks / SUVs equipped with the 7 pin horizontal harness (Typically 1999 to 2002, but there is some overlap.) Please check before purchase.

You will need to calibrate your mirror to your magnetic zone after purchase. Instructions are included.

NOT COMPATIBLE WITH VEHICLES EQUIPPED WITH ONSTAR

Specifications:

Manufacturer: Gentex

Mirror #: 010103

Gentex Part: GNTX-177

Mount Type: Screw

Auto Dimming: Yes

Map Lights: No

Compass: Yes

Temperature Display: No

Wiring Harness Style: 7 Pin

Compatible Temperature Sensor Part # (Not included): N/A

Pictured wiring harness segment included

Adding this mirror to a vehicle that did not come with this style? Here are some things to consider:

Is the stock harness compatible?

Sometimes, upgrading mirrors can be as simple as plugging one with more features in. For instance, most GM vehicles have either a 7 or 16 pin harness and typically have similar wiring layouts.

Other times rewiring and soldering will be required.

Are wiring diagrams available?

If the mirror isn't plug and play, you'll likely have to splice wiring and harnesses to get a new mirror to function correctly. Different vehicles have different colors for the same functioning wires. Without accurate wiring diagrams, it is impossible to successfully install (trial and error is NOT recommended) one of these mirrors without damaging it. I can send an image with the approximate pin out of the harness if requested after purchase to ease installation.  You will still need to find a wiring diagram for your car to complete the process.

Why auto dimming?

The feature reduces eye fatigue, especially during interstate driving. Those who have mirrors equipped with this feature say they can't imagine wanting to drive without it. Below is an example of just how much a mirror will adjust to remove harsh lights from the driver's vision. Most of the time, the mirror will never get this dark unless you have a train or something else extremely bright behind you.