Positioning:
Specialty pickup truck with off-road capabilities, positioned as a rugged and capable vehicle.
Competitors:
Jeep Wrangler Unlimited, Toyota Tacoma TRD Off-Road, Ford F-150 SVT Raptor (though H3T is a smaller segment).
Unique Selling Points:
Hummer brand off-road prowess, distinct styling, powerful Vortec V8 engine, body-on-frame construction, excellent towing capacity for its class.
Engine:
Complete engine diagnostics, repair, and overhaul (5.3L Vortec V8)
Drivetrain:
Front and rear axle assemblies, driveshafts, differentials, transfer case, clutch, manual and automatic transmissions
Suspension Steering:
Front and rear suspension systems, steering gear, power steering, alignment procedures
Brakes:
Front and rear brake systems (disc), hydraulic system, ABS, parking brake
Electrical:
Complete electrical system, wiring diagrams, charging system, ignition system, starting system, lighting, instrumentation, body controls, comfort systems
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system diagnostics and repair
Body:
Body and frame repairs, exterior trim, interior trim, doors, windows, mirrors, bumpers
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements, tune-ups
Troubleshooting:
Diagnostic procedures, fault code interpretation, symptom-based troubleshooting
Repair:
Step-by-step repair instructions for all major systems and components
Diagnostics:
On-Board Diagnostics (OBD-II) system, sensor testing, actuator testing
Depth:
Comprehensive from basic maintenance to complete engine and transmission overhauls, including electrical schematics and diagnostic procedures.
Transmission Type:
4-speed automatic (4L60E)
Transmission Type:
5-speed manual (NV1500) - Primarily for 3.7L engine variants, less common for 5.3L.
Transfer Case:
StabiliTrak with electronic transfer case (available on some models)
Automatic Transmission Fluid:
Dexron VI (GM Part Number 88863799 or equivalent)
NHTSA Rollover Resistance:
4 out of 5 stars (for 2009 model)
IIHS Top Safety Pick:
Not rated (model not tested extensively by IIHS)
Traction Control:
Standard Electronic Traction Control System (TCS)
Stability Control:
Standard StabiliTrak Stability Control System
ABS:
Standard 4-wheel Anti-lock Braking System (ABS)
Airbags:
Frontal airbags for driver and front passenger, available side-impact airbags
Audio System:
Available AM/FM stereo with CD player, MP3 capability, and auxiliary input jack. Optional Bose premium audio system.
Navigation:
Optional DVD-based navigation system.
Rear View Camera:
Available rear vision camera system.
Bluetooth:
Available Bluetooth hands-free calling system.
Oil Change Interval:
Every 7,500 miles (12,000 km) or 6 months, whichever comes first (with synthetic oil).
Tire Rotation Interval:
Every 7,500 miles (12,000 km)
Transmission Fluid Change Interval:
Typically every 45,000 - 60,000 miles (72,000 - 96,000 km), or under severe service conditions.
Engine Oil Type:
SAE 5W-30 Synthetic (GM Part Number 12345822 or equivalent)
Engine Oil Capacity:
7.0 quarts (6.6 liters) with filter for 5.3L V8
Brake Fluid Type:
DOT 3 (GM Part Number 12363272 or equivalent)
Common Problems:
Potential for fuel pump issues, minor interior trim rattles, some transmission shift quality complaints, possible exhaust manifold leaks (especially on earlier GM V8s).
Brand Legacy:
Hummer brand known for its extreme off-road vehicles (H1, H2), emphasizing ruggedness and capability.
H3T Introduction:
Introduced for the 2009 model year as a pickup truck variant of the H3 SUV.
Production Plant:
Shreveport, Louisiana, USA
Production Range:
2009-2010
