Hummer H3

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Hummer H3
2007 Hummer H3 -- NHTSA.jpg
2007 Hummer H3
Overview
Manufacturer General Motors
Production 2005–2010
Assembly
Body and chassis
Class
Body style 4-door
Layout Front engine, four-wheel drive
Platform GM GMT345 platform
Related
Powertrain
Engine
  • 3.5 L (211 CID) L52 I5
  • 3.7 L (223 CID) LLR I5
  • 5.3 L (327 CID) LH8 V8
Transmission
Dimensions
Wheelbase 111.9 in (2,842 mm)
Length 188.1 in (4,778 mm) with rear tire carrier
Width 74.7 in (1,897 mm)
Height
  • 2006–07: 73.7 in (1,872 mm)
  • 2008–2010: 73.2 in (1,859 mm)
Curb weight 4,700–4,900 lb (2,100–2,200 kg)

The Hummer H3 is a SUV/Sport Utility Vehicle from General Motors' Hummer division that was produced from 2005 to 2010. Introduced for the 2006 model year, it was based on the GMT355 underpinning the Chevrolet Colorado and GMC Canyon compact pickup trucks that were also built at GM's Shreveport Operations in Shreveport, Louisiana and the Port Elizabeth plant in South Africa. The H3 was the smallest among the Hummer models, and the only one to be built by GM. It was available either as a traditional midsize SUV or as a midsize pickup known as the H3T.

Powertrains[edit]

The H3 was launched with a 3.5 liter straight-5 cylinder L52 engine that produced 220 hp (160 kW) and 225 lbf·ft (305 N·m) of torque and was mated to a standard five-speed manual transmission or an optional Hydra-Matic 4L60-E four-speed automatic transmission. In 2007 this engine was replaced by the 3.7 liter LLR that produced 242 hp (180 kW) and 242 lbf·ft (328 N·m) of torque, figures that were revised in 2009 to 239 hp (178 kW) and 241 lbf·ft (327 N·m). Under revised EPA testing standards when equipped with either transmission this straight-5 engine achieved 14 mpg-US (17 l/100 km) in the city and 18 mpg-US (13 l/100 km) on the highway with a combined average of 15 mpg-US (16 l/100 km). Available solely with the automatic transmission, a 5.3 liter LH8 V8 engine producing 300 hp (220 kW) and 320 lbf·ft (430 N·m) of torque was added in 2008 for the Alpha model. The V8 version had lower fuel economy, estimated at 13 mpg-US (18 l/100 km) in the city, 16 mpg-US (15 l/100 km) on the highway, with a combined average of 14 mpg-US (17 l/100 km).[2]

Capabilities[edit]

Hummer H3 showing external spare tire

The H3 featured a two-speed, electronically controlled full-time four-wheel drive system that made it for both on-road and off-road driving. Electronic locking front and rear differentials were optional. Like the Hummer H2, the H3 can ford 24 inches (610 mm) of water (tested in depths up to 31 in or 787 mm) at a speed of 5 mph (8.0 km/h) and 16 in (406 mm) of water at a speed of 20 mph (32 km/h). Standard ground clearance measured at 9.7 in (246 mm) while the approach, departure, and breakover angles are measured at 37.4°, 34.7°, and 22.1° respectively, allowing the H3 to scale a 16-inch (406 mm) vertical wall and negotiate grades of 60% and side slopes of 40%. Front and rear recovery hooks were standard, with an optional trailer hitch and wiring harness.

Maximum towing capacities were 3,000 lb (1,361 kg) for the straight-5 with manual transmission, 4,500 lb (2,041 kg) for the straight-5 with automatic transmission, and 6,000 lb (2,722 kg) for the V8 with automatic transmission. Cargo volume with the second-row seats in the upright position was 25.0 cubic feet (0.71 m3) that could be expanded to a maximum of 62.8 cubic feet (1.78 m3) when the seats are folded down. The V8 models featured the least maximum payload capacity of just over 1,100 lb (499 kg) while straight-5, manual transmission models allowed the greatest payload at 1,300 lb (590 kg).

Safety[edit]

Electronic stability control, anti-lock four-wheel disc brakes, brake-controlled traction control, LATCH child-seat anchors, and tire-pressure monitoring were standard features on the H3. Side-curtain airbags were optional until 2008 when they were made standard across. The H3 was rated Acceptable, the second highest rating, by the Insurance Institute for Highway Safety in both frontal offset and side-impact crashes (with side airbags) and Poor, the lowest rating, for rear-crash protection/head restraints.[3]

The U.S. National Highway Traffic Safety Administration (NHTSA) gave the 2008 H3 the following scores:

Frontal Driver: 5/5 stars
Frontal Passenger: 4/5 stars
Side Driver: 5/5 stars
Side Rear Passenger: 5/5 stars
AWD Rollover: 3/5 stars

H3T[edit]

2009 Hummer H3T

The Hummer H3T is a mid-size pickup truck that was available during the 2009[4] and 2010 model years.

The vehicle was originally developed as a regular cab (two-door) concept pickup truck in 2003, that was shown at the 2004 Los Angeles Auto Show.[5] The five-passenger four-door crew-cab production version appeared at the 2008 Chicago Auto Show.[6] The H3T featured a 5-foot bed with built-in storage boxes and came in standard H3T, H3T Adventure, H3T Luxury, and H3T Alpha (with cloth or leather trim) trim packages.

A road test by Motor Trend reported the 2009 truck "crawled up rock steps, ran through sand washes, and navigated steep ledges with confidence and capability to spare." They described its turning radius "uncomfortably wide" and said "at highway cruising it would've been nice to have a faster, firmer feel.[7]

Yearly U.S. sales[edit]

Calendar year H3 H3T Total
2005 33,140 N/A 33,140
2006[8] 54,052 N/A 54,052
2007 43,431 N/A 43,431
2008[9] 20,681 692 21,373
2009[10] 5,487 2,046 7,523

International markets[edit]

In 2007, GM South Africa launched Hummer production in Port Elizabeth. The plant manufactured the Hummer H3 for the South African market, as well as units exported to Asia and Europe. This factory also manufactured a right hand drive version for the Australian market between 2007 and 2009.[11] In Australia, the Hummer was distributed by GM Holden by specialist dealerships that were also affiliated with the Saab automobile brand, which was owned by GM at that time.

The H3 was qualified in 2010 by the Japanese Transport Ministry for tax breaks that set easier fuel-efficiency standards for heavier vehicles.[12] The 4,700-pound (2,132 kg) H3's 16 mpg-US (15 L/100 km; 19 mpg-imp) average in city traffic cleared the required Japanese emissions standards relative to its weight.[12] A total of 723 Hummers were sold in Japan during the 12 months before March 2009.[12]

Motorsports[edit]

Robby Gordon competed in the 2010 Dakar Rally in a purpose built, tube frame chassis H3, finishing eighth overall.[13]

Plug-in hybrid[edit]

In early 2009, Raser Technologies and FEV built a prototype plug-in hybrid H3 that could achieve up to 100 MPG given enough main power.[14] This vehicle was renamed the Electric Hummer H3, and later showcased by California State Governor Arnold Schwarzenegger at a press conference at the State Capitol in Sacramento as part of a campaign to promote greener vehicles.[15]

End of the H3[edit]

At the end of February 2010, General Motors announced it would begin dismantling the Hummer brand.[16] After filling a rental-car fleet order, the last Hummer H3T rolled off line at Shreveport on May 24, 2010.[17]

References[edit]

  1. ^ "Группа компаний Автотор :: Автомобили GM" (in Russian). Avtotor.ru. Retrieved 2010-05-25. 
  2. ^ "2008 Hummer H3 4WD fuel economy estimates". fueleconomy.gov. Retrieved 28 October 2014. 
  3. ^ "2010 Hummer H3". Insurance Institute for Highway Safety. Retrieved 28 October 2014. 
  4. ^ McCausland, Evan (8 September 2008). "2009 Hummer H3T Production Starts". blogs.automobilemag.com. Archived from the original on 22 February 2009. Retrieved 28 October 2014. 
  5. ^ "First Look: Hummer H3T Concept". Motor Trend. December 2003. Retrieved 28 October 2014. 
  6. ^ DeLorenzo, Matt (7 February 2008). "2009 Hummer H3T – 2008 Chicago Auto Show". Road & Track. Retrieved 28 October 2014. 
  7. ^ Williams, Mark (June 2008). "First Drive: 2009 Hummer H3T". Motor Trend. Retrieved 28 October 2014. 
  8. ^ "GM Media Online". Media.gm.com. 3 January 2007. Archived from the original on 28 April 2007. Retrieved 28 October 2014. 
  9. ^ "GM Media Online". Media.gm.com. 5 January 2009. Archived from the original on 21 February 2009. Retrieved 28 October 2014. 
  10. ^ "Chevrolet, Buick, GMC and Cadillac Post Sales Gains". GM Media Online. 5 January 2010. Retrieved 28 October 2014. 
  11. ^ GM (26 October 2006). "Hummer H3 comes to Australia in 2007". Automotoportal.com. Retrieved 28 October 2014. 
  12. ^ a b c Tabuchi, Hiroko (12 February 2010). "Japan Calls Hummer H3 Fuel-Efficient". The New York Times. Retrieved 28 October 2014. 
  13. ^ "N° 302 – Team Robby Gordon Motorsports". Dakar Rally. Retrieved 28 October 2014. 
  14. ^ June, Laura (28 April 2009). "Raser Technologies develops 100MPG Hummer H3 just to spite Al Gore". Engadget.com. Retrieved 28 October 2014. 
  15. ^ "Schwarzenegger Introduces Raser's 100-MPG Electric Hummer H3". Theautochannel.com. 29 May 2009. Retrieved 28 October 2014. 
  16. ^ Ramzy, Austin (25 February 2010). "A Deal Sours, and the Hummer Bites the Dust". Time. Retrieved 28 October 2014. 
  17. ^ Roy, Carolyn (24 May 2010). "Last Hummer rolls off line at Shreveport GM plant". KSLA-TV. Retrieved 28 October 2014. 

External links[edit]