Gentex ADVGEN45A4 Auto-Dimming Mirror Installation Guide

About this manual

This guide walks you through the pre‑installation preparation, removal of the original mirror, and mounting of the Gentex ADVGEN45A4 auto‑dimming mirror. It includes detailed wiring instructions for switched (+12 V) and constant (+12 V) power sources, grounding, and final testing of the dimming and HomeLink features.

Additional sections cover compass zone adjustment, compass calibration, and troubleshooting tips for common issues such as dimming problems, compass errors, and HomeLink programming failures.

What's inside

• Pre‑Installation Steps
• OEM Mirror Removal
• Mounting the Auto‑Dimming Mirror
• Power Wiring (Switched and Constant +12 V)
• Ground Connection
• Testing and Verification
• Compass Zone Adjustment & Calibration
• HomeLink® Feature Programming
• Troubleshooting

Specifications

Frequently asked questions

What torque should be applied to the mirror mounting bracket screw?

The mounting bracket screw should be tightened to 1.3 ft‑lbs (17.8 kg‑cm).

What is the procedure to program a HomeLink® garage door opener?

Clear memory by holding the two outer HomeLink buttons, then follow the step‑by‑step button‑press sequence with the hand‑held transmitter as described in the guide.