1998 Cadillac DeVille Owner's Manual - Page 256

8. Don't let the other end of the positive cable touch metal. Connect it to the positive (+) terminal of the good battery. of Don't let the other end the negative (-) cable touch anything until the next step. other endof the The negative (-) cable doesnI go to the dead battery. goes ' It of to a heavy unpainted metal part on the enginethe vehicle with the dead battery. 10. Attach the cable at least 18 inches (46 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, but the chanceof sparks getting back to the battery is much less. ~ 9. Now connect the black negative (-) cable to the good battery's negative (-) terminal. 11. Now start the vehicle with the good battery and run the enginefor awhile. 12. Try to start the vehicle with the dead battery. If it won't start after a few tries, probably it needs service. 5-7