2004 Hummer H2 Owner's Manual - Page 287

Receiver Extension (If Equipped) Use the receiver extension with the front receiver and various light-duty accessories such as bike racks. Notice: Do not attach accessories or cargo that weigh more than 240 lbs. (108 kg) to the receiver extension. You could damage the receiver extension and/or your vehicle's frame components. The receiver extension was not intended for heavy-duty use, such as trailer towing, winching or vehicle recovery. To use the front receiver with the receiver extension, do the following: 1. Locate the receiver extension (A) in the rear of the vehicle where it is attached to the spare tire mounting plate. 2. Loosen the wing nuts (B) holding the extension to the spare tire plate and remove it. 3. The extension attaches to the front receiver exactly as the power winch platform does. See "Power Winch Platform" following in this section. 4. Attach the accessory you will be using to the receiver extension. 4-61