The H2 SUT has standard head airbag curtains for front and rear seats, which act as a forgiving barrier between the driver and outboard passenger's upper bodies and the window and pillars. Combined with high-strength steel door beams and lower side airbags this system increases head protection in broadside collisions. Head airbags cost extra in the Silverado.
To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the H2 SUT. But it costs extra on the Silverado.
The H2 SUT has standard StabiliTrak, which uses the antilock brake hardware along with powerful software and additional sensors to detect the beginning of a skid. The StabiliTrak then intervenes by automatically applying the brake at one appropriate wheel, preventing a skid. A skid prevention system is only available on the Silverado V8.
Both the H2 SUT and the Silverado have standard driver and passenger frontal airbags, front seatbelt pretensioners, four-wheel antilock brakes and electronic stability systems to prevent skidding.
The Hummer H2 SUT weighs 1179 to 2056 pounds more than the Chevrolet Silverado. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
The H2 SUT comes with a full 4 year/50,000 mile basic warranty, which covers the entire truck and includes free 24 hour roadside assistance. The Silverado’s 3 year/36,000 mile basic warranty expires 1 year and 14,000 miles sooner.
The H2 SUT’s 6.2 V8 produces 198 more horsepower (393 vs. 195) and 155 lbs.-ft. more torque (415 vs. 260) than the Silverado WT’s standard 4.3 V6. The H2 SUT’s 6.2 V8 produces 98 more horsepower (393 vs. 295) and 110 lbs.-ft. more torque (415 vs. 305) than the Silverado’s optional 4.8 V8. The H2 SUT’s 6.2 V8 produces 78 more horsepower (393 vs. 315) and 77 lbs.-ft. more torque (415 vs. 338) than the Silverado’s optional 5.3 V8.
The H2 SUT has 6 gallons more fuel capacity than the Silverado Short/Standard Box’s standard fuel tank (32 vs. 26 gallons), for longer range between fill-ups.
The H2 SUT’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the Silverado are solid, not vented.
The Hummer H2 SUT has standard antilock four-wheel disc brakes for better stopping power and improved directional control in poor weather. Rear drums are standard on the Silverado. Drums can heat up and make stops longer, especially with antilock brakes, which work much harder than conventional brakes.
In an emergency stopping situation, many drivers don’t press the brakes with enough force to stop the vehicle in the shortest distance. The H2 SUT has a standard brake assist system to detect emergency braking situations (by how hard and how quickly the brake pedal is pressed) and then automatically apply maximum braking immediately in order to help prevent a collision. The Silverado doesn’t offer a brake assist feature.
The H2 SUT stops shorter than the Silverado:
60 to 0 MPH
For better traction, the H2 SUT has larger standard tires than the Silverado (305/60R20 vs. 245/70R17). The H2 SUT’s tires are larger than the largest tires available on the Silverado (315/70R17 vs. 275/55R20).
The Hummer H2 SUT’s wheels have 8 lugs for longer wheel bearing life, less chance of rotor warping and greater strength. The Chevrolet Silverado only has 6 wheel lugs per wheel.
The H2 SUT has standard front and rear stabilizer bars, which help keep the H2 SUT flat and controlled during cornering. The Silverado’s suspension doesn’t offer a rear stabilizer bar.
The rear suspension of the H2 SUT uses coil springs for better ride, handling and control than the Silverado, which uses leaf springs in the rear. Coil springs compress more progressively and offer more suspension travel for a smoother ride with less bottoming out.
The H2 SUT has variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The Silverado doesn’t offer variable-assist power steering.
For a smoother ride and more stable handling, the H2 SUT’s wheelbase is 3.8 inches longer than on the Silverado 1500 standard box Regular Cab (122.8 inches vs. 119 inches).
For better handling and stability, the track (width between the wheels) on the H2 SUT is 1.3 inches wider in the front and 2.4 inches wider in the rear than on the Silverado.
For greater off-road capability the H2 SUT has a greater minimum ground clearance than the Silverado 1500 short box Extended Cab (9.7 vs. 9 inches), allowing the H2 SUT to travel over rougher terrain without being stopped or damaged. The H2 SUT w/air suspension’s minimum ground clearance is .6 inch higher than on the Silverado 1500 long box Regular Cab (10.1 vs. 9.5 inches).
The H2 SUT is 1 foot, 3.8 inches shorter than the Silverado 1500 standard box Regular Cab, making the H2 SUT easier to handle, maneuver and park in tight spaces. The H2 SUT is 4 feet, 11.4 inches shorter than the Silverado 1500 long box Extended Cab.
The H2 SUT’s standard power windows allow the driver or passenger to lower and raise the windows without leaning over or being distracted. Power windows are only available on the Silverado LS/LT/LTZ.
The H2 SUT’s front and rear power windows all lower with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Silverado LS/LT/LTZ’s power windows’ passenger windows don’t open automatically. The Silverado’s optional rear power window switches have to be held the entire time to lower them fully.
The H2 SUT’s standard power locks allow the driver or passenger to lock or unlock all the doors at a touch without leaning over, or reaching to the back seat. Power locks cost extra on the Silverado.
To improve rear visibility by keeping the rear window clear, the H2 SUT has a standard rear wiper. The Silverado doesn’t offer a rear wiper.
To better shield the driver and front passenger’s vision, the H2 SUT has standard dual-element sun visors that can block glare from two directions simultaneously. The Silverado doesn’t offer secondary sun visors.
The H2 SUT has standard power remote mirrors. The Silverado WT doesn’t offer either a remote driver side or passenger side mirror. The driver will have to roll down the windows and reach across the car to adjust the mirrors.
The H2 SUT’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. The Silverado WT doesn’t offer heated side mirrors.
The H2 SUT’s standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Silverado WT/LS doesn’t offer dual zone air conditioning.
The H2 SUT’s standard automatic temperature control maintains the temperature you set, automatically controlling fan speed, vents and temperature to maintain a consistent, comfortable environment. The Silverado WT/LS doesn’t offer automatic air conditioning.