1. Park your car in a safe location and turn off the engine.
2. Open the hood of your car.
3. Locate the running light assembly you need to replace. It is located behind the headlight assembly on the front of the car.
4. Remove the two screws that hold the running light assembly in place.
5. Disconnect the electrical connector from the back of the running light assembly.
6. Remove the old running light assembly from the car.
7. Install the new running light assembly by inserting it into the hole in the front of the car.
8. Connect the electrical connector to the back of the new running light assembly.
9. Secure the new running light assembly in place with the two screws you removed in step 2.
10. Close the hood of your car.
That's it! You have now successfully replaced the running light on your 2003 Lexus RX 300.
