– HUMMER Debuts 2006 H3

25 Mar 2015 | Author: | Comments Off on – HUMMER Debuts 2006 H3

H3’s arrival establishes an extraordinary new presence in the previously ordinary world of midsize SUVs, said Susan Docherty, HUMMER general manager. HUMMER has developed a passionate following because of its unmatched style and capability, and the H3 extends that appeal by making the brand accessible to a broader range of potential owners.

H3 packs uncompromising HUMMER style and capability into its midsize dimensions. Compared to the H2, the H3 is 16.9 inches shorter in length, 6 inches shorter in height and 6.5 inches narrower. Roughly the same length as a midsize family sedan, H3 comfortably navigates city traffic and delivers HUMMER’s trademark incredible crawling and climbing capability.

Powered by the Vortec 3500 engine with dual overhead cams and variable valve timing, the H3 features a combination of power and greatly improved fuel economy. H3 is projected to reach peak fuel economy of up to 20 miles per gallon. H3 will be the first HUMMER to offer the choice of a manual or an automatic transmission, as many off-road enthusiasts value the ultimate control of a manual.

The H3 was engineered for off-road leadership among midsize SUVs. The heart of the truck’s capability is its electronically controlled four-wheel-drive system. That system is augmented with features such as a fully locking rear differential, traction control, underbody shielding and GM’s StabiliTrak vehicle stability enhancement system.

H3 offers two tire packages, a Goodyear 32-inch all-terrain tire and Bridgestone 33-inch, both larger than any other midsize SUV.

In addition to its uncompromised off-road capabilities, the H3 also provides the refinement, comfort and convenience required for enjoyable on-road driving. It offers premium options such as heated leather seats, a large electric sliding sunroof, a DVD-based navigation radio and numerous customized accessories.

The H3 represents a significant step in the HUMMER brand’s rapid growth, and an important product for its new network of dealers. It joins the H1, the cornerstone HUMMER that was based on the legendary military vehicle; the H2 SUV, the more modern and civilized full-size HUMMER; and the H2 SUT launched in 2004 that features an innovative reconfigurable cargo bed.


Specifically designed as a truck engine, the Vortec 3500 is a 3.5L inline five-cylinder offering an excellent combination of power and efficiency. The engine delivers 220 horsepower at 5600 rpm and 225 lb.-ft. of torque at 2800 rpm. In terms of performance, the Vortec 3500 provides the H3 with excellent power and control for off-roading, with comfortable and capable on-road characteristics, including acceleration that equals the V-8 powered H2 in most driving conditions.

The Vortec 3500 brings premium features and advanced technologies – including dual overhead cams, variable valve timing, electronic throttle control and low mass. The engine also features unique counter-rotating balance shafts to help minimize noise, vibration and harshness.

The Vortec 3500 is available in the H3 with either a standard, smooth-shifting five-speed manual transmission or a Hydra-Matic 4L60-E electronically controlled four-speed automatic transmission. The automatic transmission includes shift modes specific to low-range operation, which, combined with speed-based throttle progressions, help optimize driveability in low-range, off-highway operation.

The H3 also has a standard new Borg-Warner two-speed electrically controlled full-time four-wheel-drive system with a 2.64:1 ratio low-range gear reduction for highly controlled off-road obstacle climbing. An optional version provides aggressive low range gearing – a 4.03:1 ratio – for ultimate obstacle-climbing control.

Both versions provide the choice of operating modes:

4High-range Open, for optimum highway performance and comfort under normal road conditions

4High-range Locked, which allows torque to be transferred to the front or rear wheels as needed

4Low-range Locked, for severe off-pavement use, such as crawling over large rocks or logs, or deep sand or snow.

4Low-range Locked plus driver-selectable electronic rear differential locked, with the optional 4.03:1 low-range transfer case gearing, providing crawling and climbing power every bit as capable as the legendary H1 and H2.

H3’s more maneuverable size provides advantages, such as a 37-ft. turning circle and 9.1-inch ground clearance, which contribute to maximum breakover angle of 25 degrees (with 33-inch tires). Serious off-road performance is also aided by the maximum approach angle of 40 degrees and maximum departure angle of 37 degrees. These approach and departure angles permit the H3 to drive right into a hole and back out again, without getting hung up in front or rear.

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