1. Make sure the car is parked and the engine is turned off.
2. Open the tailgate of the truck.
3. Locate the tail light assembly on the side of the truck.
4. Press the tab at the top of the lens and pull the light bulb cover off.
5. Remove the old bulb by turning counterclockwise.
6. Replace the old bulb with a new bulb.
7. Replace the lens cover.
8. Make sure it's secure, and close the tailgate.