1. Park your car in a safe location and turn off the engine.
2. Open the trunk of your car.
3. Locate the rear blinker assembly. It is located on the side of the trunk, near the taillight.
4. Turn the bulb socket counterclockwise to remove it from the assembly.
5. Remove the old bulb from the socket.
6. Insert the new bulb into the socket.
7. Turn the bulb socket clockwise to secure it in place.
8. Close the trunk of your car.
9. Test the new bulb by turning on the blinker.
Here are some additional tips for replacing the rear blinker bulb on a 2003 Buick LeSabre:
* Make sure that you purchase the correct bulb for your car. The owner's manual will list the correct bulb size.
* Be careful not to drop the bulb when you are removing it from the socket.
* If you have any questions about how to replace the rear blinker bulb, consult with a qualified mechanic.
