Hummer H2 - cloud9cars.net

Official Story - Collapse

H2 makes its debut in the truck world as the more civilized family member. Its on-pavement manners, including ride comfort, are extremely refined. And it provides all the features and amenities that a premium SUV customer might want. Yet, off-road, it is almost as fiercely utilitarian as its famous progenitors-capable of traveling through streams 20 inches deep, climbing 16-inch steps and rocks, paddling through deep sand and outdistancing competitors in high-speed desert preruns.

H2 can safely charge into six inches of water at 40 mph, for example, or travel through streams more than 20 inches deep at a leisurely 5-mph pace. It can also comfortably and confidently climb 16-inch steps and rocks, without getting hung up or jarring its passengers. And it can paddle through deep sand or run over sandy surfaces in high-speed desert conditions with ease.

The sophisticated four-wheel-drive system and transfer case are versatile and driver-selectable. The integrated Borg-Warner two-speed electrically controlled full-time 4WD system is capable of further reducing the vehicle's gear ratios by 2.64:1 when necessary, for highly controlled obstacle climbing. It provides a 40/60 percent front-to-rear torque split in High Open mode or when the differentials are unlocked and a 50/50 percent front-to-rear power split when the transfer case differential is locked. A specially designed low-range throttle progression allows the driver to precisely control engine speed (and as a result, the vehicle) during very rough terrain driving.

The Single Wheel traction control system provides additional capability under certain operating conditions. The system detects a slipping wheel and applies brake pressure to it to slow it down, transferring torque across the differential to provide traction for the wheel on the opposite side. The system senses any slipping wheels and applies the brakes to them individually, while the driveline and differentials transfer torque to the wheel with the high traction for added traction.

The chassis of the HUMMER H2 was painstakingly designed and engineered to provide a solid foundation for best-in-class off-road performance, while maintaining a refined, comfortable ride on pavement. Not only was the chassis specially tuned for superior off-road performance, it was designed to optimize the off-road balance between rock crawling and desert racing. Special attention was paid in areas of obstacle clearance, suspension articulation, wheel control and underbody protection.

The H2's standard independent front torsion bar and five-link coil spring rear suspension provides excellent on-pavement ride comfort and control and a high degree of strength, control and rear-axle articulation off-road. An optional self-leveling air spring suspension for the rear takes comfort, control and off-road axle articulation to an even higher level.

The optional, self-leveling air spring suspension system is brand new for GM. The system is available with the off-road suspension package. The package also includes larger LT315/70R17 all-terrain tires, targeted to dedicated off-road enthusiasts, and a high-capacity air compressor and inflation accessory. Rim protection, a reinforcement of the tire design that extends the durable rubber over the rim of the wheel, and triple sidewalls are standard as well. Rim protection adds extra protection to the tires and prevents them from slipping off the wheels when aired down.

H2 makes its debut in the truck world as the more civilized family member. Its on-pavement manners, including ride comfort, are extremely refined. Off-road, it is almost as fiercely utilitarian as its famous ancestors - capable of traveling through streams 20 inches deep, climbing 16-inch steps and rocks, paddling through deep sand.

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