🏷️ Basic Information

Make:

Hummer

Model:

H3

Year:

2009

👋 Introduction

Market Position:

Specialty SUV, Off-Road Capable, Targeted towards enthusiasts and those requiring robust utility.

Competitive Analysis:

Competed against vehicles like Jeep Wrangler, Toyota FJ Cruiser, and other mid-size SUVs with off-road pretensions. Differentiated by its distinct styling and Hummer brand image.

Key Features:

Rugged styling, excellent off-road capability, powerful engine options, distinct road presence.

Manual Purpose:

To enable owners and technicians to maintain, service, diagnose, and repair the 2009 Hummer H3.

📋 Manual Details

Coverage Areas:

All Models & All Repairs A-Z

Format:

PDF

Language:

English

Manual Type:

Service and Repair Manual

Download Speed:

Speed Download

Requirements:

Adobe PDF Reader and Winzip (free online)

Page Count:

Not specified, but described as 'complete' and 'everything you will ever need'.

📖 Manual Coverage

Systems Covered:

Maintenance, Engine, Control System, Mechanical, Fuel Service Specifications, Emission Control, Intake Exhaust Cooling, Lube, Ignition Starting Charging, Auto Transmission, Clutch, Manual Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension, Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Air Condition, Supplemental Restraint System, Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn, Windshield/Glass Mirror, Instrument Panel, Seat, Engine Hood/ Door, Exterior & Interior, Electrical, Multiplex/CAN Communication

Body And Chassis Coverage:

Frame and underbody, body panels, doors, windows, bumpers, interior trim, seats, and associated hardware.

Suspension And Steering Coverage:

Front and rear suspension components, steering gear, power steering system, wheel alignment specifications, hub assemblies, and wheel bearings.

Braking System Coverage:

Front and rear brake systems (discs/drums), hydraulic components, parking brake system, ABS system operation and diagnostics.

Heating Ventilation And Air Conditioning Coverage:

HVAC system operation, refrigerant handling, component replacement (compressor, evaporator, condenser), blower motor, control heads, and ducting.

Engine Mechanical Coverage:

Engine assembly (short block, long block), cylinder head service, camshaft, crankshaft, pistons, connecting rods, timing system, seals, and gaskets.

Procedures Included:

Step-by-step repair instructions, diagnostic procedures, troubleshooting, component removal and installation, fluid level checks and changes, component adjustments, wiring schematic interpretation, electrical system diagnosis, routine maintenance procedures.

Wiring Schematics Coverage:

Detailed wiring diagrams for all major electrical systems including engine control, lighting, audio, HVAC, power accessories, and safety systems.

Technical Depth:

Factory High-Detailed Repair Manuals, Vehicle Specific, Technician Level

Diagnostic Procedures:

Comprehensive diagnostic procedures utilizing diagnostic trouble codes (DTCs), live data stream interpretation, and component testing using appropriate tools.

Illustrations And Diagrams:

Includes diagrams and illustrations to aid in repair and maintenance procedures.

Specifications Detail:

Provides torque specifications, clearances, fluid capacities, and other critical technical data for all repair procedures.

📊 Manual Specifications

File Format Compatibility:

Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, MAC Compatible

Printability:

All pages printable, enlarged image capability

Binding Type:

Digital (PDF)

Paper Type:

Not Applicable (Digital)

⚙️ Engine Specifications

Primary Engine Option:

3.7L Vortec I5 (L52)

Horsepower 3.7L I5:

242 hp @ 5600 rpm (approx.)

Torque 3.7L I5:

242 lb-ft @ 3600 rpm (approx.)

Fuel System Type:

Multi-port Fuel Injection (MPFI)

Optional Engine Option:

5.3L Vortec V8 (LH6) - *May be available in certain configurations or markets, though the I5 was standard for most of the H3's run.*

Cooling System Type:

Pressurized liquid cooling system

Lubrication System Type:

Pressurized wet-sump lubrication system

🔧 Transmission

Standard Transmission:

4-Speed Automatic (4L60-E)

Optional Transmission:

5-Speed Manual (NV1500) - *Primarily with the 3.7L I5 engine.*

Transmission Features:

Includes a 2-speed electronically controlled transfer case for enhanced off-road capability (e.g., 4WD Low range).

📐 Dimensions

Wheelbase:

111.9 inches

Overall Length:

188.9 inches

Overall Width:

79.1 inches

Overall Height:

77.9 inches

Ground Clearance:

Approx. 9.7 inches

Curb Weight:

4700 - 5000 lbs (approx., depending on configuration)

Cargo Volume Behind Rear Seat:

25.0 cubic feet

🛡️ Safety Features

NHTSA Front Driver Crash Rating:

4 Stars (as per available data for the period)

NHTSA Front Passenger Crash Rating:

4 Stars (as per available data for the period)

IIHS Frontal Offset Score:

Good (as per available data for the period)

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (TCS), StabiliTrak Electronic Stability Control (ESC)

Passive Safety Features:

Front airbags, front seat-mounted side-impact airbags, available rear-seat side-impact airbags, OnStar safety and security services.

Seat Belts:

3-point seat belts with pretensioners and load limiters for front occupants, 3-point seat belts for rear occupants.

💡 Technology Features

Infotainment System Features:

Optional AM/FM/CD/MP3 player with aux input, available navigation system, optional premium audio system.

Driver Assistance Features:

Rear parking assist sensors (optional), OnStar system (optional, depending on subscription and package).

Connectivity Features:

Standard Bluetooth hands-free calling (on some trims/packages), USB connectivity (on some later models or with specific infotainment upgrades).

🔧 Maintenance

Oil Change Interval:

Refer to manual for specific interval based on driving conditions, typically 5,000-7,500 miles or 6 months.

Tire Rotation Interval:

Refer to manual, typically every 5,000-7,500 miles.

Engine Coolant Flush Interval:

Refer to manual, typically every 100,000 miles or 5 years for Dex-Cool.

Engine Oil Specification:

SAE 5W-30 Synthetic Blend (API SN or later, GM dexos1™ approved)

Transmission Fluid Specification Auto:

Dexron VI (for 4L60-E)

Transfer Case Fluid Specification:

GM specification (e.g., for NP143, NP243, NP243C transfer cases, consult manual for exact spec, likely DEXRON-III or equivalent).

Brake Fluid Specification:

DOT 3 or DOT 4 (Consult manual for exact specification and change interval)

Common Issues 1:

Front differential pinion seal leaks, ABS sensor failures, HVAC blower motor resistor issues, potential for minor body panel fitment variations.

Common Issues 2:

Cracked exhaust manifolds (especially on V8 models), power steering pump noise, rear differential vent issues.

📚 Vehicle History

Brand Heritage:

Hummer originated from AM General's HMMWV (Humvee) military vehicle. GM acquired the brand rights and introduced civilian models.

Model Evolution:

The H3 was introduced for the 2006 model year as the smallest and most affordable Hummer. It was designed to offer Hummer's distinctive styling and off-road capability in a more manageable package than the H1 and H2.

H3 Variants:

Available in SUV and the more specialized H3T pickup truck body styles.

Production Location:

Shreveport, Louisiana, USA (GM Assembly Plant)

Production Years:

2006-2010

🏆 Awards & Recognition

Recognitions:

J.D. Power and Associates 'Most Appealing Entry Midsize SUV' (2007, 2009) - *Note: Awards can vary by reporting year and specific criteria.*