1. Access the License Plate Lamp Housing:
* Usually, you'll find access from the trunk. Open your trunk. The license plate lamp housing is typically located on the inside of the trunk lid, near the license plate itself. Look for small access panels or screws. Sometimes it's a single panel, sometimes two separate panels (one for each bulb).
* Locate the access point: This is the most critical step. Carefully examine the area around the license plate light. You'll likely see small screws, clips, or a panel that needs to be popped loose. If you see a removable panel, try gently prying it open with a small flat-head screwdriver or trim tool. Be gentle to avoid scratching the paint.
2. Remove the Bulb:
* Once you have access to the bulb housing, you'll typically find a bulb socket. The bulb is usually a standard wedge-base bulb (often 194 or 168).
* Carefully disconnect the bulb: Gently twist the bulb slightly and pull it straight out of the socket.
3. Replace the Bulb:
* Install the new bulb: Insert the new bulb into the socket and gently twist it to secure it. Make sure it's firmly in place.
4. Reassemble:
* Replace the access panel: Once the new bulb is installed, carefully replace the access panel or screws you removed earlier. Ensure everything is securely fastened.
Important Considerations:
* Type of Bulb: Before starting, it's a good idea to note the bulb type (printed on the old bulb) so you buy the correct replacement. Auto parts stores will have these readily available.
* Tools: You might need a small flat-head screwdriver or trim tool to remove the access panel.
* Caution: Avoid touching the new bulb's glass with your fingers. The oil from your skin can shorten its lifespan. If you do touch it, wipe it clean with a soft cloth.
* Consult your owner's manual: If you're still having trouble, consult your owner's manual. It might contain specific instructions or diagrams for your particular model of Cutlass Supreme.
If you cannot find an access point in the trunk, it's possible (though less common) that the access might be from underneath the vehicle. This would require slightly more advanced mechanical skills and safety precautions. However, this is usually not the case for the rear license plate lamps.