To remove and install the 2006 Hummer H3 Headlamp, do the followings:

  1. Open the hood.
  2. Reach in and access the headlamp bulb.
  3. Turn the bulb socket counterclockwise to remove it from the headlamp assembly.
  4. Unplug the electrical connector by pushing the release tab and pulling the bulb socket out.
  5. Replace with a new bulb socket.
  6. Reinstall the electrical connector.
  7. Reinstall the bulb socket into the headlamp assembly making sure to align the tabs on the bulb socket with the tabs in the headlamp housing.
  8. Turn the bulb socket clockwise to secure it.

Hummer H3 Headlamp Wiring Diagram

1. Headlamp Assembly Right
2. Bolt Bolt Back
3. High beam bulb Back
4. Park/turn lamp Right
5. Signal lamp bulb Back
6. Wire harness Back

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