Tools You'll Likely Need:
* Phillips head screwdriver (possibly a Torx screwdriver as well, check your owner's manual)
* Socket wrench (possibly)
* New brake light bulb (check your owner's manual for the correct bulb type and wattage)
* Gloves (optional, but recommended to keep your hands clean)
Steps:
1. Safety First: Park your car on a level surface, engage the parking brake, and turn off the engine. Consider using wheel chocks for extra safety.
2. Locate the Taillight Assembly: The brake lights are part of the taillight assembly. They're located at the rear of the car, one on each side.
3. Access the Taillight Assembly: This is where things get specific to the car model. You'll likely need to:
* Remove Interior Trim: There might be an interior trim panel (plastic cover) that needs to be removed to access the taillight assembly. This usually involves carefully prying it loose with a flathead screwdriver or trim tool, working around the edges. Be gentle to avoid breaking the plastic. Check your owner's manual for specific removal instructions.
* Unscrew the Taillight Assembly: Once the interior trim is removed, you'll likely find screws holding the taillight assembly in place. Remove these screws. Some models might have clips instead of screws or a combination of both.
4. Disconnect the Electrical Connector: Once the screws are removed, carefully pull the taillight assembly outward. You'll find an electrical connector plugged into the back of the assembly. Carefully disconnect this connector by pressing the release tab (usually located on the side of the connector).
5. Replace the Brake Light Bulb: The brake light bulb is usually easily accessible once the taillight assembly is removed. Refer to your owner's manual for the specific bulb type and how it's oriented in the socket. Be careful not to touch the glass part of the new bulb with your bare hands, as oils from your skin can reduce its lifespan. Use a clean cloth or glove.
6. Reassemble Everything: Reconnect the electrical connector, carefully put the taillight assembly back in place, and screw it in. Replace the interior trim panel.
7. Test the Brake Lights: Turn on your car and test the brake lights to ensure they're working correctly.
Important Considerations:
* Owner's Manual: This is your best resource for precise instructions. The steps above are a general guide and might not be entirely accurate for your specific 1996 Cadillac Deville.
* Bulb Type: Know the exact bulb type before heading to the auto parts store. Your owner's manual will list this information.
* Difficult Access: Accessing the taillight assembly can sometimes be tricky. If you encounter difficulties, consider seeking professional help from a mechanic.
* Multiple Bulbs: The taillight assembly may house multiple bulbs, including the brake light, turn signal, and running light. Make sure to check all bulbs while you're in there.
If you're unsure about any step, it's always best to consult a professional mechanic to avoid damaging your vehicle.