2005 Hummer H2 Owner's Manual - Page 297

6. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. You can use your vehicle's front mounted receiver with the proper accessories to tow it. See "Front Mounted Receiver" under If You Are Stuck: In Sand, Mud, Ice or Snow on page 4-52. 7. Turn the engine off and leave the steering column unlocked. Selectable Extended Rear Ride Height If your vehicle has this feature it comes as part of the electronically controlled air suspension system. The selectable rear ride height allows you to raise the rear of the vehicle about 2 inches (5 cm) over the normal ride height. This can be helpful when driving off-road where you may need more ground clearance to clear an obstacle. The button that controls this feature is located on the instrument panel to the right of the steering wheel. {CAUTION: Shifting an all-wheel-drive vehicle's transfer case into NEUTRAL can cause your vehicle to roll even if the transmission is in Park (P). You or others could be injured. Make sure the parking brake is firmly set before you shift the transfer case to NEUTRAL. Dolly Towing Your vehicle can not be dolly towed. If you must tow your vehicle behind another, use the dinghy towing procedure listed previously. Notice: Dolly towing your vehicle will damage drivetrain components. Do not dolly tow your vehicle. 4-65