1997 GMC Sonoma Owner's Manual - Page 278

3. Remove the bulb. Taillamps 1. Open the tailgate. 2. Remove the screws from the lamp assembly near the tailgate latch. 4. Install a new bulb. 5. Replace the lens. Install and tighten the screws. If equipment such as a cap orcamper is installed on your vehicle, a center high-mounted stoplamp feed wire is provided along the driver's side rear frame. Thiswire should be used to install a center high-mounted stoplamp in the cap orcamper. 3. Pull the assembly away from the pickup side panel. 4. Turn the socket counterclockwise to remove it. Push the tab in while you turn the socket. 5. Pull the bulb out. 6. Push the new bulb into the socket. 7 . Put the socket into the assembly and turn the socket clockwise until it locks into place. 8. Replace the assembly. Install and tighten the screws. 9. Close the tailgate. 6-40