1. Preparation is Key:
* Gather Tools: You'll likely need plastic trim removal tools (to avoid scratching the paint), a small flathead screwdriver (use carefully!), possibly a putty knife (again, carefully!), and potentially some towels or rags to protect the surrounding paint.
* Clean the Area: Clean the area around the windshield trim thoroughly. Dirt and grime can obscure fasteners and make the job more difficult.
* Visual Inspection: Examine the trim closely. Look for visible clips, screws, or adhesive. Take photos before you start – this will be invaluable when reassembling.
2. Locating Attachment Points:
* Clips: Most likely, the trim is held on by plastic clips. These are usually found at intervals along the edge of the trim. Carefully feel along the edges for these clips.
* Screws: Some trim pieces might have screws hidden under rubber seals or decorative caps.
* Adhesive: Some parts might be glued or sealed. This is more likely for smaller sections of the trim.
3. Removal Process (General Steps):
* Start in a Concealed Area: Begin at a corner or section of the trim that's less visible. This allows you to practice your technique before tackling more prominent areas.
* Gently Pry: Using your plastic trim tool or a flathead screwdriver (very carefully!), gently insert the tool into the gap between the trim and the windshield frame. Avoid excessive force; you risk breaking the trim or scratching the paint. Work your way along the edge of the trim, releasing the clips one by one.
* Work Slowly and Methodically: Don't rush. Take your time and feel for each clip. If you encounter resistance, investigate further; you might have missed a clip or fastener.
* Remove the Trim: Once all clips are released, gently pull the trim away from the windshield.
4. Dealing with Adhesive:
* If you encounter significant adhesive, a plastic putty knife can help to carefully separate the trim. Apply heat (e.g., a hair dryer on a low setting) to soften the adhesive. Be incredibly cautious to avoid damaging the paint. Using a nylon or plastic cutting tool might be helpful.
5. Reassembly (Important):
* Once you've removed the trim, take note of how the clips fit and the orientation of the trim. Take photos if necessary. This is crucial for reassembly.
* Reassembly is generally the reverse of the removal process. Ensure all clips are properly engaged before reinstalling.
Important Notes:
* If you're unsure about any part of this process, it's best to consult a professional auto body shop. Improper removal can damage your car's paint and trim.
* Replacement parts: If the trim is damaged during removal, have replacement parts on hand before you begin.
* Year Specifics: While the general approach is similar, the exact details of the clips and attachment methods can vary even within the same model year. Searching online forums or resources dedicated to 1990 Cadillac Brougham might reveal more specific information.
This is a detailed explanation, but remember that every car is slightly different. Proceed with caution and prioritize protecting your vehicle's finish. Good luck!