2004 GMC Sierra 1500 Pickup Owner's Manual - Page 456

7. 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. 9. Now connect the black negative (−) cable to the negative (−) terminal of the good battery. Use a remote negative (−) terminal if the vehicle has one. The vehicle's remote negative (-) terminal is marked GND. 8. 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. 10. 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 engine part of the vehicle with the dead battery, or to a remote negative (-) terminal if the vehicle has one. 5-56