2003 Hummer H2 Owner's Manual - Page 302

If you are using a winch to pull out another vehicle, follow the winch manufactures guidelines and observe the following to prevent damage to your vehicle: NOTICE: Using a power winch with the transmission in gear to pull out another vehicle may damage the transmission. When operating a power winch, always leave the transmission in NEUTRAL (N). If you are using a winch to pull out your own vehicle, follow the winch manufactures guidelines for self recovery and observe the following to prevent damage to your vehicle: D If possible, have your vehicle anchored from the opposite side of the winch to a solid, immovable object. If winching from the front, use both of the rear recovery loops. If winching from the rear, use both of the front recovery loops. D Put your transmission in NEUTRAL (N). D Use your regular brakes to hold your vehicle in place and block the wheels to keep the vehicle from moving. D Do not self recover your vehicle by wrapping the winch cable around an object (such as a pulley block or tree) and attaching it back to your vehicle's recovery loops. anchor directly in front of your vehicle to achieve a straight line pull. D Always attach the winch cable directly to a solid 4-74