1999 GMC Safari Owner's Manual - Page 218
1999 GMC Safari Manual
Page 218 highlights
yellowblue 9. Now connect the black negative (-) cable to the good battery's negative (-) terminal. Don't let the other end touch anything until the next step. 12. Try to start the vehicle with the dead battery. If it won't start after a few tries, it probably needs service. 13. Remove the cables in reverse order to prevent electrical shorting. Take care that they don't touch each other or any other metal. 10. The other end of the negative (-) cable does not go to the dead battery. It goes to a negative jump starting stud located near the battery. The electrical connection is just as good there, but the chance of sparks getting back to the battery is much less. 11. Now start the vehicle with the good battery and run the engine for a while. A. Negative Jump Starting Stud B. Good Battery C. Dead Battery 5-6