2009 Chevrolet Impala Owner's Manual - Page 299

8. Install the electrical connector to the bulb. 9. Install the new bulb by inserting the smallest tab on the bulb base into the matching notch in the retaining ring. Turn the bulb a quarter-turn clockwise until it stops. 10. Reinstall the dust caps. 3. Pull up on the plastic headlamp retainer and remove it. 4. Pull the headlamp assembly away from the vehicle and remove the electrical connector. 5. Remove the round dust caps to gain access to the bulbs. 6. Turn the old bulb counterclockwise and remove it from the retaining ring by pulling it away from the headlamp. 7. Remove the electrical connector from the bulb by raising the lock tab and pulling the connector away from the bulb's base. 5-47 11. Push the headlamp assembly toward the vehicle.