2011 Chevrolet Avalanche Owner's Manual - Page 51

Keys, Doors and Windows Lowering the Midgate with the Rear Glass in the Storage Pocket Raising the Midgate 2-15 To return the Midgate to its normal position, raise the Midgate up with a firm swinging motion until it latches into place securely. This will help to ensure that the Midgate closes with enough force to engage the latches. If the rear glass is removed and you would like to put it back, do so using the instructions given previously. Midgate Lowered with Crossbar Attached Rear Glass Stored in Glass Storage Pocket This procedure works the same as the procedure described previously, but when you lower the Midgate with the rear glass in the stored position, you will notice that the entire crossbar will lower with the Midgate. This is completely normal; however, since the crossbar lowers with the Midgate, it will be heavier. As you lower the Midgate be ready for the extra weight and do not let the Midgate fall as you lower it.