2006 Hummer H2 Owner's Manual - Page 315

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 Your Vehicle is Stuck in Sand, Mud, Ice or Snow on page 4-50. 7. Turn the ignition to ACCESSORY. 8. Disconnect the battery if you are going to tow for long distances or long periods of time. When towing your vehicle for extended periods of time, start your vehicle as often as possible to prevent battery drain. This should only be done when the tow vehicle is parked. 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. Dolly Towing Your vehicle cannot 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. To use this feature, ensure that the following conditions are met: • The engine must be running. • All doors must be fully closed. The suspension will not raise or lower if a door is open. • The vehicle speed must be less than 40 mph (64 km/h). The system will not activate otherwise. 4-61