1. Preparation:
* Disconnect the battery: This is crucial to prevent electrical shorts. Disconnect the negative (-) terminal first.
* Gather tools: You'll likely need a trim panel removal tool (plastic pry tools are ideal to avoid scratching), Phillips head screwdriver, possibly a Torx screwdriver (depending on the mirror's specific fasteners), and potentially a socket wrench. A small flathead screwdriver might also be useful for prying things loose carefully.
* Assess the mirror: Before starting, carefully examine the mirror assembly. Take pictures to help with reassembly. Note the placement and connection of any wiring harnesses.
2. Removing the Door Panel:
* Locate the screws: These are usually hidden behind access panels (e.g., under the door handle or armrest). Carefully remove these panels.
* Detach the door panel: Start at the bottom edge of the panel. Use trim tools to gently pry it away from the door. Work your way around the perimeter, carefully releasing the plastic clips that hold it in place. There might be some clips under the armrest. Be gentle to avoid breaking the clips.
* Disconnect electrical connectors: Once the panel is loose, disconnect the power window switch, power lock switch, and any other electrical connectors attached to the door panel. Carefully note how these connect for reassembly.
3. Removing the Mirror Assembly:
* Locate the mirror mounting: The mirror itself will be attached to the door via a bracket or mounting plate. You might find screws holding the assembly in place, often hidden behind a plastic cover.
* Disconnect the wiring harness: Carefully unplug the wiring harness for the mirror's power, heating element, and potentially motorized adjustment.
* Remove mounting bolts/screws: Unscrew the bolts or screws securing the mirror assembly to the door. Sometimes, these are accessable only after removing the trim and bracket holding the mirror on.
* Remove the mirror assembly: Carefully remove the mirror assembly from the door.
4. Installing the New Mirror:
* Connect the wiring harness: Carefully plug in the wiring harness for the new mirror, making sure everything is securely connected. Refer to your photos or the repair manual.
* Mount the new mirror: Secure the new mirror assembly to the door using the bolts/screws.
* Re-attach the door panel: Reinstall the door panel, ensuring all the clips are securely fastened and the electrical connectors are correctly plugged in.
* Reconnect the battery: Carefully reconnect the battery's negative (-) terminal.
5. Testing:
* Test the mirror: Test the power adjustment, heating element (if applicable), and overall functionality of the new mirror.
Important Considerations:
* Heated Mirrors: If your mirror is heated, be extra careful with the wiring harness and make sure the new mirror's heating element is correctly wired.
* Power Adjustment: The motor for power adjustment can be fragile. Handle it carefully.
* Repair Manual: A repair manual specific to your 1994 Chevy Suburban is strongly recommended. It will have detailed diagrams and instructions. You can find these online or at auto parts stores.
* Professional Help: If you're uncomfortable with any part of this process, it's always best to seek professional help from a qualified mechanic. Replacing the mirror incorrectly could lead to damage.
This detailed guide should help, but remember to use caution and consult your resources! Good luck!
