1997 Buick LeSabre Owner's Manual - Page 217

9. Now connect the black negative (-) cable to the goodbattery's negative (-) terminal. 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 on the engine of the vehicle with the dead battery. 10. Attach the cable at least 18 inches (45 cm) away from the deadbattery, but not near engine parts that move. The electrical connection is just good as of there, but the chance sparks getting backto the battery is much less. 11. Now start the vehicle with the good battery and run the engine for a while. 12. Try to start the vehicle with the dead battery. If it won't start after a few tries, it probably needs service. 5-7