2013 Chevrolet Express 1500 Cargo Owner Manual - Page 284

10-36 Vehicle Care 9. Reinstall the bulb socket by turning it clockwise into the lamp assembly. 10. Reverse Steps 1-5 to reinstall the taillamp assembly and applique. 1. Remove the two screws from the CHMSL assembly. 2. Remove the CHMSL assembly. 3. Turn the bulb socket counterclockwise one-quarter turn to remove it from the lamp assembly. 4. Pull the old bulb straight out of the socket and push the new bulb into the socket. 5. Turn the bulb socket clockwise one-quarter turn to install it in the lamp assembly. 6. Reinstall the CHMSL assembly and two screws. Do not block or damage the CHMSL when items are loaded on the roof of the vehicle. 5. Remove the taillamp assembly from the vehicle. Center High-Mounted Stoplamp (CHMSL) The CHMSL is above the rear doors at the center of the vehicle. To replace a bulb: 6. Remove the taillamp/turn signal lamp (1) or back-up lamp (2) bulb socket by turning it counterclockwise one-quarter turn and pulling it out of the lamp assembly. 7. Remove the bulb by pulling it straight out. 8. Push the new bulb into the socket.