2011 Buick LaCrosse Owner's Manual - Page 400

10-88 Vehicle Care 8. Connect the other end of the black negative (-) cable to an unpainted heavy metal engine part (D) away from the dead battery, but not near engine parts that move. 9. Start the engine in the vehicle with the good battery and run the engine at idle speed for at least four minutes. 10. Try to start the vehicle that had the dead battery. If it will not start after a few tries, it probably needs service. Notice: If the jumper cables are connected or removed in the wrong order, electrical shorting may occur and damage the vehicle. The repairs would not be covered by the vehicle warranty. Always connect and remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal. Jumper Cable Removal A. Heavy, Unpainted Metal Engine Part or Remote Negative (-) Terminal B. Good Battery or Remote Positive (+) and Remote Negative (-) Terminals C. Dead Battery or Remote Positive (+) Terminal 6. Do not let the other end of the red positive (+) cable touch metal. Connect it to the positive (+) terminal of the good battery (B). Use a remote positive (+) terminal if the vehicle has one. 7. Connect one end of the black negative (-) cable to the negative (-) terminal of the good battery (C). Use a remote negative (−) terminal if the vehicle has one. Do not let the other end touch anything until the next step. The other end of the negative (-) cable does not go to the dead battery. It goes to a heavy, unpainted metal engine part or to a remote negative (-) terminal on the vehicle with the dead battery.