2009 Chevrolet Impala Owner's Manual - Page 302

11. Push the taillamp assembly back into place. When reinstalling the taillamp assembly, make sure that you line up the four posts on the assembly with the slots in the vehicle. 12. Turn the two hex nuts clockwise to reinstall them. 13. Put the carpet back in place at the rear of the vehicle. 5. Turn the two hex nuts counterclockwise to remove them. 6. Pull out the taillamp assembly and disconnect the wiring harness. 7. Turn the bulb socket counterclockwise to remove it. 8. Pull the old bulb straight out to remove it. 9. Push the new bulb straight in until it clicks to install it. 10. Turn the bulb socket clockwise to reinstall it. 5-50 14. Turn the upper wing nut clockwise to reinstall. 15. Put the convenience net back into place by hooking it to the upper wing nut.