2011 GMC Canyon Regular Cab Owner's Manual - Page 292

10-40 Vehicle Care 4. Turn the bulb socket counterclockwise to remove it from the taillamp assembly. 5. Holding the socket, pull the old bulb straight out to release it from the socket. 6. Push the new bulb straight into the socket until it clicks. 7. Insert the bulb socket into the taillamp assembly and turn it clockwise to secure. 8. Reinstall the taillamp assembly and tighten the screws. Center High-Mounted Stoplamp (CHMSL) To replace the CHMSL bulb: 1. Remove the two screws and lift off the lamp assembly from the vehicle. 3. Holding the socket, pull the bulb to release it from the socket. 4. Push the new bulb into the socket until it clicks. 5. Insert the bulb socket into the lamp assembly and turn it clockwise to secure. 6. Reinstall the lamp assembly and tighten the screws. 2. Turn the bulb socket counterclockwise and remove it from the lamp assembly.