2003 GMC Yukon Owner's Manual - Page 405

6. Connect the red positive (+) cable to the positive (+) terminal of the vehicle with the dead battery. Use a remote positive (+) terminal if the vehicle has one. 8. Now connect the black negative (−) cable to the good battery's negative (−) cable. Use a remote negative (−) terminal if the vehicle has one. 7. Don't let the other end touch metal. Connect it to the positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one. 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. 5-47