Tools You'll Need:
* New side mirror: Make sure you get the correct replacement mirror for your Trailblazer's year and model. Specify if it's a power or manual mirror and if it has a turn signal.
* Phillips head screwdriver (possibly): Some mirrors use screws, others are held in by clips.
* Small flathead screwdriver (possibly): Useful for prying carefully if clips are involved.
* Putty knife or trim removal tool (recommended): Helps avoid scratching the door panel.
* Gloves (optional): To protect your hands.
* Shop towels or rags: To clean up.
Steps:
1. Power vs. Manual Mirror: Determine if your mirror is power or manual. This dictates the initial steps. Power mirrors are generally more complex to remove.
2. Disconnect the Electrical Connector (Power Mirrors Only):
* Locate the electrical connector behind the mirror. It usually plugs into the back of the mirror housing.
* Gently unplug the connector. Sometimes a small tab needs to be depressed to release the connector.
3. Remove the Mirror Housing: This is where the process differs significantly:
* Manual Mirrors: These often use screws located either on the face of the mirror housing (behind the mirror glass itself) or on the back. Carefully unscrew and remove them. If no screws are present, the mirror is held in place by clips. Gently use a putty knife or trim tool to pry the edges of the mirror housing away from the door. Work slowly and carefully around the entire perimeter. Be gentle to avoid breaking the clips.
* Power Mirrors: These are almost always held on by clips. Locate the edges of the mirror housing where it meets the door panel. Use a putty knife or trim tool to gently pry the edges away, starting at one corner and working your way around. This usually involves releasing several clips. Again, be very careful to avoid breaking anything. There might be a small access panel underneath the mirror which will reveal further clips or screws.
4. Replace the Mirror: Once the old mirror housing is removed, carefully compare it to the new one. Note the alignment of clips or screws. Attach the new mirror housing using the screws or aligning the clips. Make sure it sits securely in place.
5. Reconnect the Electrical Connector (Power Mirrors Only): If applicable, plug the electrical connector back into the new mirror housing. Ensure a secure connection.
6. Test the Mirror (Power Mirrors Only): Turn on the ignition and test the power functions (adjusting, turn signal if equipped).
7. Clean Up: Wipe away any dust or debris.
Important Considerations:
* Take Pictures: Before you start, take pictures of each step. This will be invaluable if you encounter any difficulties during reassembly.
* Be Gentle: Use plastic tools to avoid scratching the door panel. Work slowly and carefully to avoid breaking any clips.
* Consult a Repair Manual: A repair manual specific to your 2002 Chevy Trailblazer will provide detailed instructions and diagrams. This is highly recommended, especially for power mirrors.
* YouTube Tutorials: Search YouTube for "2002 Chevy Trailblazer side mirror replacement." Visual demonstrations can be extremely helpful.
If you're uncomfortable performing this repair yourself, it's best to take your Trailblazer to a qualified mechanic or auto body shop. Damaging the door panel during removal can be more costly than paying for professional installation.
