Before you start:
* Consult your owner's manual: This is the best source for specific instructions and diagrams for your vehicle.
* Gather tools: You'll likely need a trim panel removal tool (to avoid scratching the plastic), a Phillips head screwdriver (possibly a Torx depending on your model), and potentially some electrical connectors.
* Disconnect the negative battery terminal: This is a crucial safety step to prevent electrical shorts.
General Steps (Power Mirror):
1. Remove the door panel: This is usually the most challenging part. There are numerous clips and screws holding it in place. Carefully pry the panel away using your trim removal tools, working your way around the perimeter. Be gentle to avoid breaking any clips. Consult a repair manual or online video for your specific year and model to see exactly where the clips and screws are located. You will need to disconnect the window controls, door lock controls, and possibly other electrical connectors.
2. Locate the mirror mounting: Once the door panel is removed, you'll see the mirror assembly. It's typically held in place by screws or a few retaining clips.
3. Disconnect the electrical connector: For power mirrors, carefully unplug the electrical connector that supplies power to the mirror's motors and heating element (if equipped).
4. Remove the mirror assembly: Unscrew or release the clips holding the mirror in place and carefully remove the assembly.
5. Install the new mirror assembly: Reverse the removal process. Connect the electrical connector securely, making sure it's properly seated.
6. Reinstall the door panel: Securely attach the door panel, making sure all clips are properly engaged.
General Steps (Manual Mirror):
1. Remove the door panel: This step is identical to the power mirror process.
2. Remove the mirror assembly: Manual mirrors are typically held in place by screws or a simple clip. Remove these fasteners and carefully take off the mirror.
3. Install the new mirror assembly: Again, reverse the removal steps.
4. Reinstall the door panel: Securely reattach the door panel.
Important Considerations:
* Wiring: Be careful not to damage any wires while removing and reinstalling the door panel. Take photos or make notes before disconnecting anything to aid in reassembly.
* Clips: Door panel clips are easily broken. If you break any, you'll need to replace them. It's wise to have some spares on hand.
* Repair Manuals: A service manual specific to your 2001 Buick Regal will provide detailed instructions and diagrams, making the process much easier. You can find these online or at auto parts stores.
* YouTube: Search YouTube for videos showing mirror replacement on a 2001 Buick Regal. Visual aids are invaluable.
This is a general guide. The exact procedure may vary slightly depending on the trim level and specific options on your Buick Regal. Always consult your owner's manual or a repair manual for precise instructions. If you're not comfortable with car repairs, it's best to take your car to a qualified mechanic.
