Target Audience:
DIY owners and experienced mechanics
Vehicle Class:
Mid-size SUV / pickup truck
Brand Positioning:
Rugged off-road capability with Hummer heritage
Off-Road Capability:
Solid front and rear axles, full-time 4WD, locking rear differential available
Distinctive Styling:
Boxy Hummer design language
Manual Transmission Option:
5-speed manual available with 3.5L and 3.7L engines
Engine Options:
3.5L I5, 3.7L I5, 5.3L V8
Drivetrain:
Rear-wheel drive or four-wheel drive
Towing Capacity:
Up to 4,500 lbs (varies by configuration)
System Coverage:
Engine, transmission, drivetrain, suspension, brakes, electrical, body, HVAC, entertainment, navigation, wiring diagrams
Procedures:
Step-by-step repair, service, disassembly, and reassembly
Includes:
User/owner manual
Page Count:
More than 6,500 pages
Manual Type:
Workshop repair service manual
Format:
PDF (requires Adobe Acrobat Reader)
Delivery:
Instant download
Operating Systems:
All Windows versions, all Mac versions
Required Software:
Adobe Acrobat Reader (free download) for PDF
Extraction Software:
WinZip or WinRAR (free download) for ZIP file
General Information:
Includes safety, vehicle identification, and basic maintenance
Maintenance:
Scheduled service, fluid checks, and adjustments
Engine:
Diagnosis, removal, disassembly, inspection, reassembly, installation
Engine Electrical:
Ignition, charging, starting, and sensors
Cooling System:
Radiator, water pump, thermostat, hoses
Exhaust System:
Manifolds, pipes, muffler, catalytic converter
Cruise Control:
System operation and repair
Transmission and Drivetrain
Automatic Transmission:
Service, overhaul, and diagnostics
Manual Transmission:
Clutch, gearbox, and linkage
Clutch:
Inspection, replacement, and adjustment
Transfer Case:
Operation, service, and repair
Driveshaft:
Propeller shaft, universal joints, and bearings
Axle Shaft:
Front and rear axle shafts
Differential:
Front and rear differential service and repair
Suspension:
Front and rear suspension, springs, shocks, alignment
Steering:
Power steering, steering column
Hydraulic Brakes:
Master cylinder, lines, and fluid
Antilock Brakes:
ABS operation, diagnosis, and repair
Disk Brakes:
Pads, rotors, calipers
Parking Brakes:
Cables, shoes, and adjustment
Ent. and Nav.:
Radio, speakers, navigation system
Heater and Ventilation:
Blower motor, heater core, controls
Air Conditioning:
Compressor, condenser, evaporator, refrigerant
Electrical Component Location:
Component locations and wiring diagrams
Wiring Diagram:
Complete vehicle wiring diagrams
Body and Accessories:
Exterior trim, mirrors, and accessories
Body Panel:
Doors, fenders, hood, and tailgate
Bumper:
Front and rear bumper removal and installation
Interior:
Seats, carpet, headliner, and trim
Power Seats:
Adjustment and repair
Windows:
Power window regulators and glass
Wiper and Washer:
Motor, linkage, and washer system
Airbags:
Supplemental restraint system (SRS) diagnosis and repair
Instrument Panel:
Cluster, warning lights, and controls
User Manual:
Owner's manual included
Technical Depth:
Complete disassembly and reassembly with specifications
Parts Information:
Component identification and service procedures
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
3.5L I5:
L52 5-cylinder inline, 220 hp, 225 lb-ft
3.7L I5:
LLR 5-cylinder inline, 239 hp, 242 lb-ft
5.3L V8:
LH8 V8, 300 hp, 320 lb-ft
Horsepower:
220-300 hp depending on engine
Torque:
225-320 lb-ft depending on engine
Fuel System:
Sequential fuel injection
Engine Oil Capacity:
3.5L: 5.5 qt; 3.7L: 5.5 qt; 5.3L: 6 qt (with filter)
Coolant Capacity:
Approximately 2.5 gallons
Oil Change:
Every 7,500 miles or 12 months
Tire Rotation:
Every 7,500 miles
Air Filter:
Inspect every 15,000 miles, replace as needed
Spark Plugs:
Replace every 100,000 miles
Transmission Fluid:
Check every 15,000 miles; replace per severe service schedule
Coolant:
DEX-COOL extended life coolant
Power Steering Fluid:
GM Power Steering Fluid
Automatic Transmission Fluid:
DEXRON VI
Transfer Case Fluid:
Auto-Trak II
Known Issues / Wear Items
Common Wear Items:
Brake pads, rotors, tires, battery, belts, hoses
Known Issues:
Front differential mount wear; HVAC blend door actuator failure; ignition switch issues