Vehicle Class:
Mid-size SUV (Off-road focused)
Key Competitors:
Jeep Wrangler, Toyota FJ Cruiser, Nissan Xterra
Vehicle Usp:
Robust off-road capability, distinctive Hummer styling, powerful engine options
Target User:
DIY mechanics, enthusiast owners, independent repair shops
Overall Coverage:
Complete factory service, repair, and troubleshooting
Estimated Pages:
Hundreds (detailed with photos & diagrams)
Type:
Professional Workshop Manual
Digital Compatibility:
Windows and MAC computers, tablets, smartphones
Powertrain:
Engine, Transmission (Manual & Automatic), Drivetrain, Exhaust System
Chassis:
Suspension (Front & Rear), Steering System, Brakes (ABS & Non-ABS), Wheels & Tires
Electrical:
Body Control Module (BCM), Powertrain Control Module (PCM), Lighting, Instrumentation, Audio System, HVAC Controls, Safety Systems (Airbags, ABS)
Body:
Exterior Body Panels, Interior Trim, Doors, Hood, Tailgate, Glass, Seats
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication
Repair And Overhaul:
Engine rebuild, transmission overhaul, brake component replacement, suspension repair, electrical component diagnostics and replacement
Troubleshooting:
Diagnostic procedures for common and complex faults, symptom-based troubleshooting guides
Depth:
Step-by-step instructions, detailed photos, exploded diagrams, torque specifications, wiring diagrams, diagnostic trouble codes (DTCs)
Printability:
Printable (single pages or entire manual)
Binding:
Digital (no physical binding)
Digital Resolution:
High-resolution for clear viewing of images and text
Usage License:
Lifetime use on unlimited devices, no expiry or renewal fees
Engine Code:
LL8 ( Vortec 3700 )
Configuration:
Inline-5 Cylinder, DOHC, 20 Valves
Displacement:
3.7 Liters (3700 cc)
Horsepower:
242 hp @ 5600 rpm
Torque:
242 lb-ft @ 4600 rpm
Induction:
Multi-port Fuel Injection (MPI)
Recommended Oil Type:
SAE 5W-30 Synthetic Blend (API certified)
Oil Capacity With Filter:
5.5 US quarts (5.2 Liters)
Coolant Type:
Dex-Cool (Orange) Extended Life Antifreeze/Coolant
Coolant Capacity:
12.2 US quarts (11.5 Liters)
Transmission Type:
5-speed Manual (M30/MY9)
Transmission Type:
4-speed Automatic (4L60-E)
Drivetrain Options:
4WD (Full-time, electronically controlled with 2-speed transfer case)
Automatic Transmission Fluid Type:
Dexron-VI (GM P/N 88862472)
Automatic Transmission Fluid Capacity:
Approx. 8.3 US quarts (7.9 Liters)
Manual Transmission Fluid Type:
GM Synchromesh Transmission Fluid (P/N 12346190)
Transfer Case Fluid Type:
GM Auto-Trak II Fluid (P/N 12378508)
Transfer Case Fluid Capacity:
1.8 US quarts (1.7 Liters)
NHTSA Front Driver Impact:
5 Stars
NHTSA Front Passenger Impact:
5 Stars
NHTSA Side Driver Impact:
4 Stars
NHTSA Side Passenger Impact:
4 Stars
Traction Control:
Standard
Electronic Stability Control:
StabiliTrak (optional)
Anti Lock Brakes:
Standard (4-wheel disc)
Airbags:
Frontal, Side-Curtain
Audio System:
Factory AM/FM/CD with available premium audio, SiriusXM Satellite Radio, and auxiliary input.
Navigation:
Optional factory navigation system
Parking Assistance:
Rear parking assist sensors (optional)
Auxiliary Input:
Standard on most models for audio device connection.
Oil Change Interval:
Every 7,500 miles (12,000 km) or 6 months
Air Filter Replacement:
Every 45,000 miles (72,000 km) or as needed based on inspection
Spark Plug Replacement:
Every 100,000 miles (160,000 km) (with Iridium-tipped spark plugs)
Coolant Flush Replacement:
Every 5 years or 150,000 miles (240,000 km)
Power Steering Fluid Type:
Dexron III-H (GM P/N 12345899) or equivalent
Common Complaints:
Water pump leaks, HVAC blower motor failures, dashboard creaking/rattling, transmission shifting issues (automatic).
Durability Notes:
Generally robust powertrain, but off-road use can accelerate wear on suspension and drivetrain components.
Brand Origin:
Hummer was originally a brand of off-road vehicles, developed from the HMMWV military vehicle.
H3 Introduction:
The Hummer H3 was introduced for the 2006 model year as a smaller, more affordable, and more fuel-efficient alternative to the H1 and H2.
H3 2007 Updates:
For 2007, the primary update was the introduction of the Alpha model with a V8 engine, along with minor interior and exterior refinements.
Manufacturing Location:
Shreveport, Louisiana, USA (GM's Shreveport Assembly Plant)
Gm Acquisition:
General Motors acquired the Hummer brand in 1999 and launched the H3 in 2005.
