Overview

Released in October 2007, the Hummer H3 was a five seat wagon with a dual-range, full-time four wheel drive system. Manufactured in Port Elizabeth, South Africa, the H3 was powered by a 3.7-litre inline five-cylinder petrol engine mated to either a four-speed automatic or five-speed manual transmission. Furthermore, the H3 range consisted of three variants: an unnamed, entry-level variant, the Adventure and Luxury.

The 3.7-litre LLR (or Vortec 3700) Atlas petrol engine had an aluminium block and cylinder head, double overhead camshafts (chain-driven), four valves per cylinder, variable exhaust valve timing and a compression ratio of 10.0:1. Transmission choices consisted of five-speed Aisin manual and four-speed 4L60E HydraMatic automatic units.

The H3 was 4778 mm long, 1989 mm wide, 1872 mm tall and had a 2841 mm long wheelbase; kerb weight ranged from 2178 kg to 2268 kg. Inside, cargo volume was 835 litres with the rear seats in position, though this increased to 1577 litres when the rear seats were folded.

With its ladder frame chassis, the H3 had torsion beam front suspension and a live rear axle with leaf springs. In its standard form, the H3 had 216 mm of ground clearance with a 60 per cent grade capability, 40 per cent side slope capability and a 610 mm fording depth. The Adventure variant, however was further equipped with off-road suspension, an electronic rear differential lock, a shorter low range gear reduction ratio (4.03:1) and an additional skid plate over the oil pan.

Safety equipment

Standard safety equipment for the Hummer H3 included dual front airbags, full-length curtain airbags, ABS, electronic stability control and traction control.

Features

Standard Hummer H3 features included 16-inch alloy wheels, a six speaker sound system with a CD player and MP3-compatibility, air conditioning, cruise control, front fog lights, split and folding rear seats, remote central locking, power mirrors and windows, a tilt and reach adjustable steering wheel, compass, 12 volt power outlets, roof rails, tow bar and immobiliser.

The H3 Adventure was further equipped with a seven speaker Monsoon sound system (including subwoofer) with a six-disc CD player, leathers seats and power adjustable front seats with heating. Finally, the H3 Luxury was distinguished by its cashmere leather trim and power sunroof.

Related links

• Wikipedia.org: Hummer H3

Recalls: Hummer H3

Overview

Manufacturers, or importers, issue recalls for defects or faults which have the potential to cause injury. Generally, manufacturers will inform the original buyers if their vehicle is subject to a recall and of the steps required to remedy the defect or fault. Please note that the recalls below (if any) are for Australian-delivered vehicles only. Furthermore, the number of recalls should not be taken as an indication of a model’s reliability or its safety more generally. 

Recalls: Hummer H3

• In July 2010, a recall was issued for Hummer H3 vehicles because the integral clip-tabs on the bonnet louvres could break and cause the louvres to rattle against the hood. If this went unnoticed and additional clips fractured, the louvres could detach from the vehicle (PRA 2010/11815).
• In July 2011, a recall was issued for Hummer H3 vehicles manufactured from 2007 and 2009 and with VINs in the range ADMDN13E # # 4379990 to ADMEN13E # # 4484566. For these vehicles, if a trailer was towed, the front and rear indicator lights may not warn the driver that a bulb was not operating (PRA 2011/12737).
• In July 2015, a recall was issued for Hummer H3 vehicles that were manufactured from 7 March 2007 to 3 December 2008. In these vehicles, the wiring connection system for the cabin fan may produce high levels of heat when used for extended periods at medium and high blower speeds. Excessive heat in the connector may cause it to melt and pose a fire hazard, presenting a risk of injury to vehicle occupants. The recalled Hummer H3 vehicles had VINs in the range ADMDN13E774379990 to ADMEN13E594484566 (PRA 2015/14798).

Problems and faults: Hummer GMT345 H3

Overview

This section identifies potential problems, causes and fixes based on the experiences of owners and repairers, online sources and technical service bulletins. This information is provided solely for reference purposes and AustralianCar.Reviews recommends that only properly qualified persons carry out repairs or modifications. Furthermore, the number of items below should not be taken as an indicator of a model’s reliability or the frequency with which they may occur.

To report a problem or fault to the AustralianCar.Reviews team, please use the Contact Us form. Note that AustralianCar.Reviews does not offer advice on automotive problems or disputes; such enquiries will not receive a reply. For vehicles purchased from dealers after 1 January 2011, please see our Australian Consumer Law fact sheet.

Problems and faults: Hummer H3

• The Hummer H3’s ‘check engine’ light may illuminate and the engine may operate at reduced power if the vehicle was started with a weak battery.
• Coolant leaks from the reservoir when the vehicle is driven off-road – or at increased angles – require the reservoir to be replaced with a revised component.
• There may be background noise from the speakers when using an MP3 player and the power outlet; if so, a ground loop isolator is required between the device and the power outlet.
• The tail-light housing may come loose and require a redesigned retainer.
• If the airbag warning light stays on, a seatbelt tension sensor in the front seatbelt retractor assembly may be faulty.

Released in October 2007, the Hummer H3 was a five seat wagon with a dual-range, full-time four wheel drive system. Manufactured in Port Elizabeth, South Africa, the H3 was powered by a 3.7-litre inline five-cylinder petrol engine mated to either a four-speed automatic or five-speed manual transmission. Furthermore, the H3 range consisted of three variants: an unnamed, entry-level variant, the Adventure and Luxury… Read full Hummer H3 review

hummer_h3_gmt345_ser1_01

hummer_h3_gmt345_ser1_02

hummer_h3_gmt345_ser1_03

hummer_h3_gmt345_ser1_04

hummer_h3_gmt345_ser1_05

hummer_h3_gmt345_ser1_06