2007 Chevrolet Equinox Owner's Manual - Page 375

Carrier Assembly-Differential (Rear Drive Module) When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See Scheduled Maintenance on page 439. To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the filler plug hole, you'll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole. A fluid loss could indicate a problem; check and have it repaired, if needed. How to Check Lubricant What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 448. Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 380. For any bulb changing procedure not listed in this section, contact your dealer. AWD Differential Case A. Fill Plug B. Drain Plug 375