1. Preparation:
* Disconnect the Battery: This is a crucial safety precaution to prevent accidental short circuits.
* Gather Tools: You'll likely need a set of Phillips head screwdrivers and possibly some trim removal tools (plastic pry tools are helpful to avoid scratching).
2. Accessing the Seat:
* Remove the Rear Seatback: Usually, there are release levers or buttons located on the upper portion of the seatback, near the headrests or in the side panels at the base of the seatback. Push or pull these mechanisms to release the seatback. It may tilt forward or fold down. Check your owner's manual for the exact location of the release mechanisms.
* Access the Seat Bottom: Once the back is folded or removed, you'll usually see fasteners holding the seat bottom in place. These are commonly located underneath the seat bottom itself, possibly near the seat belt anchors.
3. Removing the Seat Bottom:
* Locate the Fasteners: These are usually bolts or nuts. Sometimes they are covered by plastic trim pieces that need careful removal using your trim tools to avoid breaking them.
* Unbolt the Seat: Carefully unscrew these fasteners, keeping track of them and where they came from.
* Disconnect Electrical Connections: If there are any electrical connectors for heated seats or other features, carefully unplug them.
4. Lifting Out the Seat:
* Lift and Remove: After all the fasteners are removed, carefully lift the seat bottom out of the car. It might be heavy, so have a helper if needed.
Important Considerations:
* Owner's Manual: Consult your 1998 Cadillac STS owner's manual for the most accurate and detailed instructions for your specific model. This is the best source of information.
* Photos: Take pictures before you start removing anything. This will be invaluable when it comes time to reassemble the seat.
* Caution: Be gentle to avoid damaging the car's interior or the seat itself.
This process is a general guide. The exact location of fasteners and release mechanisms can vary. Always consult your owner's manual for the most precise instructions. If you are not comfortable working on your vehicle, take it to a qualified mechanic.
