2007 Hummer H3 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- X Sport Utility 4-Door
- Base Sport Utility 4-Door
- Luxury Sport Utility 4-Door
- Adventure Sport Utility 4-Door
Engines covered
- 3.7L 3654CC 223Cu. In. l5 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HO
IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJU
DEALERS WILL APPLY AN ADHESIVE TO THE HOOD LOUVER TO SECURE IT TO THE HOOD. THIS SERVICE WILL BE PE
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking
Showing the 8 most recent of 283 technical service bulletins on file with NHTSA.
TL*THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING 40 MPH, THE CONTACT WAS INVOLVED IN A HEAD-ON CRASH WITH THE OWNER OF AN OLDSMOBILE MINIVAN. THE CONTACT'S PASSENGER SIDE AIR BAG FAILED TO DEPLOY
I WAS IN AN ACCIDENT 3/22/2009, 2007 HUMMER H3, THE OTHER DRIVER LOST CONTROL AND HIS EXPLORER TRAVELED HORIZONTALLY ON FREEWAY 5, IN LOS ANGELES. I T BONED HIM I WAS TRAVELING 65 MPH AT TIME OF IMPAC
TAKATA RECALL AIR BAGS DID NOT DEPLOY WHEN DRIVING 75MPH SPEED LIMIT ON RURAL HWY. IT WAS REAL DARK HARD TO SEE AND I COME UP ON THE CURVE PER EYEWITNESSES STATED I WAS GOING JUST FINE THEN ALL SUDDEN
TAKATA RECALL AIR BAGS DID NOT DEPLOY WHEN DRIVING 75MPH SPEED LIMIT ON RURAL HWY. IT WAS REAL DARK HARD TO SEE AND I COME UP ON THE CURVE PER EYEWITNESSES STATED I WAS GOING JUST FINE THEN ALL SUDDEN
TAKATA RECALL AIR BAGS DID NOT DEPLOY WHEN DRIVING 75MPH SPEED LIMIT ON RURAL HWY. IT WAS REAL DARK HARD TO SEE AND I COME UP ON THE CURVE PER EYEWITNESSES STATED I WAS GOING JUST FINE THEN ALL SUDDEN
Showing the 5 most serious of 331 complaints filed with NHTSA.
