2009 Chevrolet Avalanche Owner's Manual - Page 432

To replace one of these bulbs, do the following: 1. Open the tailgate. See Tailgate on page 2-23 for more information. 2. Remove the two screws from the taillamp assembly. 4. Press the release tab, if the bulb socket has one, and turn the bulb socket counterclockwise to remove it from the taillamp assembly. 5. Pull the old bulb straight out from the bulb socket. 6. Press a new bulb into the bulb socket and insert the bulb socket into the taillamp assembly. Turn the bulb socket clockwise into the taillamp assembly until it clicks. 7. Reinstall the taillamp assembly making sure to line up the pins with the vehicle. 3. Pull the taillamp assembly rearward until you disengage the outer pins on the taillamp assembly from the vehicle. 5-52