Here's a general approach:
1. Safety First: Disconnect the negative terminal of your car battery to prevent accidental short circuits.
2. Locate Fasteners: Carefully examine the rear seat. You'll likely find fasteners securing the seat bottom to the floor. These are usually bolts, clips, or a combination of both. Look underneath the seat cushions, along the seat's edges where it meets the car's body, and along the seatback. Some are visible; others may be hidden under plastic covers that need to be carefully pried off (use a trim tool to avoid scratching).
3. Remove Fasteners: Once you've located all the fasteners, carefully remove them. Take notes or pictures as you go, noting where each fastener came from – this will help during reinstallation. Use the appropriate tools (sockets, screwdrivers, pliers) to avoid damaging the fasteners or the car's interior.
4. Lift and Remove the Seat Bottom: After removing all fasteners securing the seat bottom to the floor, carefully lift the seat bottom upward. It may be heavy, so enlist help if needed. There might be electrical connectors for seat heaters (if equipped); carefully disconnect them if present.
5. Remove the Seat Back (If Necessary): The seat back may be separate from the bottom cushion, and it may hinge forward to provide access to the trunk. Check for fasteners securing the seat back to the floor and/or the bottom cushion. Remove these fasteners carefully. Again, be mindful of potential wiring (seat belts, etc.).
6. Inspect for Wiring: Before fully removing the seat, double-check for any remaining connectors or wiring harnesses. If there are any, carefully disconnect them.
Important Considerations:
* Trim Removal Tools: Use plastic trim removal tools to avoid scratching or damaging the interior plastic panels.
* Take Pictures: Take photos of the process as you go. This is invaluable during reassembly.
* Owner's Manual: Your owner's manual is the definitive guide. It will give you precise locations of fasteners and wiring connections.
* Professional Help: If you're uncomfortable performing this task, consider having a professional mechanic do it.
Remember, this is a general guide. The exact procedure will depend on your specific 1997 Buick Riviera model. Refer to your owner's manual for the correct steps.
