1. Prepare the area: Clear out any items from the back seat and trunk. Have the necessary tools ready (typically a socket wrench set, possibly Phillips and/or flathead screwdrivers). Work in a well-lit area.
2. Access the seatbelts: Unbuckle and remove the rear seatbelts from their anchoring points. You might need to detach the seatbelt retractors from under the seat or from the car's body. This usually requires removing bolts or screws.
3. Locate and remove the seatback: The seatback is usually attached using bolts or clips, or a combination of both. These are typically located at the bottom of the seatback where it meets the seat cushion. Look for them along the creases where the seatback meets the cushion. You'll need to locate these fasteners and carefully remove them. The seatback may just tilt forward after the removal of these fasteners, or it may need to be lifted out.
4. Remove the seat cushion: Once the seatback is removed, access the cushion. The seat cushion is usually attached to the floor using a few bolts or clips, generally found underneath. You'll need to reach under the seat cushion to locate and remove these fasteners. Once removed, carefully lift the seat cushion out of the vehicle.
Important Considerations:
* Clips and Fasteners: Be cautious when removing clips. They are prone to breakage. If they're difficult to remove, use a plastic trim tool to help pry them loose without damaging them.
* Bolts: Use the correct size socket wrench for the bolts. Don't force anything; if a bolt is difficult to remove, investigate further to determine the problem. Use penetrating oil if necessary.
* Electrical Connections: Some models might have electrical connections for heated seats or other features. Disconnect these carefully before removing the seat.
* Weight: The seat can be quite heavy. Have a helper if you need assistance.
If you are unsure about any step, it's highly recommended to consult a repair manual specific to your 1995 Cadillac Sedan DeVille. You can find these manuals online or at auto parts stores. Trying to force anything could lead to damage to your car. A repair manual will have diagrams and detailed instructions that will be far more helpful than a general description.