2010 Hummer H3 Owner's Manual - Page 303

Vehicle Care 4. Turn the bulb socket counterclockwise to remove it from the taillamp assembly. 5. Pull the old bulb to release it from the socket. 6. Turn the bulb socket clockwise to reinstall in the taillamp assembly. 7. Reinstall the taillamp assembly making sure to line up the pins with the vehicle. 8. Reinstall the two screws. 10-37 License Plate Lamp To replace one of these bulbs: 4. Install the new bulb into the socket. 5. Reverse steps 1 through 4 to reinstall. Replacement Bulbs Exterior Lamp Back-up Lamp (H3T) Back-up (H3), Stoplamp, Taillamp and Turn Signal Lamp 1. Remove the two screws holding the license plate lamp. 2. Pull the license plate lamp away from the fascia. 3. Turn the bulb socket counterclockwise and pull the bulb straight out of the license plate lamp assembly. License Plate Lamp Low-Beam and High-Beam Headlamp Bulb Number W16W 3157K 194 H13 For replacement bulbs not listed here, contact your dealer.