2005 Hummer H2 Owner's Manual - Page 355

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 positive (+) remote terminal cover to its original position. How to Check Lubricant All-Wheel Drive Transfer Case It is not necessary to regularly check transfer case fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired. Refer to the Maintenance Schedule to determine how often to change the lubricant. See Scheduled Maintenance on page 6-4. A. Filler Plug B. Drain Plug 1. Remove the filler plug (A). The fluid level should be just below the bottom of the filler plug hole. To get an accurate reading, the vehicle should be on a level surface. 2. Add fluid if necessary. Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12. 3. Reinstall the filler plug. Use care not to overtighten the filler plug. 5-43