1. Disconnect the Battery: This is crucial to prevent accidental short circuits. Disconnect the negative (-) terminal first, then the positive (+).
2. Remove the Seat-Related Components:
* Power Seats (if applicable): Locate the wiring harness connectors under the seat. There should be clips or levers securing the connectors; carefully release them. You might need to remove the seat's lower trim panel to access these connectors fully.
* Heated Seats (if applicable): Similar to power seats, locate and disconnect the wiring harnesses for the heated seat elements.
* Seat Belts: Detach the seat belts from their mounting points on the seat. You might need a special tool or simply push a release lever to unfasten them.
* Airbag Sensor (if applicable): Some models have an airbag sensor in the seat. Disconnect its connector carefully. Be extremely cautious when handling airbag components; improper handling can cause deployment.
3. Access and Remove the Seat Bolts:
* Locate the Bolts: These are usually found under the seat itself. You might need to move the seat back and forth to access them fully. There are typically multiple bolts attaching the seat to the floor.
* Remove the Bolts: Use the appropriate size socket or wrench to remove the bolts. Keep track of all the bolts and hardware as you remove them.
4. Lift the Seat: Once all bolts are removed, carefully lift the seat from the floor. It's often heavy, so having a helper is recommended.
5. Complete Removal: Once lifted, carefully maneuver the seat out of the vehicle.
Important Considerations:
* Tools Needed: You will likely need various sockets, wrenches, screwdrivers (possibly Phillips and flathead), and possibly a trim removal tool to avoid damaging the interior.
* Safety: Have a helper to assist in lifting the heavy seat. Always disconnect the battery before starting. Be cautious when working around electrical connectors and airbag components.
* Documentation: Take pictures before you start disconnecting anything. This will help you remember where everything goes during reinstallation.
If you are uncomfortable performing this task yourself, it's strongly recommended to take your Cadillac Deville to a qualified mechanic. Improperly removing or reinstalling the seats can lead to safety hazards and damage to your vehicle.
