2004 GMC Yukon Owner's Manual - Page 428

8. Now connect the black negative (−) cable to the good battery's negative (−) cable. Use a remote negative (−) terminal if the vehicle has one. 9. Connect the other end of the negative (−) cable to the remote negative (−) terminal, marked GND, on the vehicle with the dead battery. Don't let the other end touch anything until the next step. The other end of the negative (−) cable doesn't go to the dead battery. It goes to a heavy, unpainted metal part of the vehicle with the dead battery, or to the remote negative (−) terminal if the vehicle has one. 10. Now start the vehicle with the good battery and run the engine for a while. 11. Try to start the vehicle that had the dead battery. If it won't start after a few tries, it probably needs service. 5-50