2012 Chevrolet Impala Owner's Manual - Page 255
2012 Chevrolet Impala Manual
Page 255 highlights
Vehicle Care To replace one of these bulbs: 1. Open the hood. See Hood on page 10‑5. 10-25 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. 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. 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. 2. Remove the screw from the headlamp assembly.
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