2009 Pontiac G8 Owner's Manual - Page 291

Vehicle Service and Care 6. Connect the other end of the red positive (+) cable to the positive (+) terminal of the good battery (B). 7. Connect one end of the black negative (-) cable to the negative (-) terminal of the good battery (C). 8. Connect the other end of the black negative (-) cable to the negative (-) post (D). 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 your warranty. Always connect and remove the 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 jumper cables in the correct order, making sure that the cables do not touch each other or other metal. 9-87 To disconnect the jumper cables from both vehicles, do the following: 1. Disconnect the black negative (−) cable from the vehicle that had the dead battery. 2. Disconnect the black negative (−) cable from the vehicle with the good battery. 3. Disconnect the red positive (+) cable from the vehicle with the good battery. 4. Disconnect the red positive (+) cable from the other vehicle. 5. Return the caps over the positive (+) and negative (-) terminals to their original positions.