Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Hummer H2 4D Utility PickupFACTORY OEM SERVICE PROCEDURE
Front of Vehicle/Engine Compartment Component Views
| Callout | Component Name |
|---|---|
| 1 | Park/Turn Signal Lamp - Right Front |
| 2 | Marker Lamp - Right Front |
| 3 | Headlamp - Right |
| 4 | Daytime Running Lamp (DRL) - Right |
| 5 | Clearance Lamp - Right Front |
| 6 | Roof Marker Lamp - Front Right |
| 7 | Off Road Lamps |
| 8 | Clearance Lamp - Left Front |
| 9 | Roof Marker Lamp - Front Left |
| 10 | Roof Marker Lamp - Front Center |
| 11 | Marker Lamp - Left Front |
| 12 | Park/Turn Signal Lamp - Left Front |
| 13 | Daytime Running Lamp (DRL) - Left |
| 14 | Headlamp - Left |
| Callout | Component Name |
|---|---|
| 1 | Washer Fluid Level Sensor |
| 2 | Window Washer Fluid Pump |
| 3 | Windshield Wiper Motor and Module |
| 4 | Horn-Left |
| 5 | Cooling Fan-Left |
| 6 | Inflatable Restraint Front Sensor - Left |
| 7 | Inflatable Restraint Front Sensor - Right |
| 8 | Cooling Fan-Right |
| 9 | Ambient Air Temperature Sensor - HVAC |
| 10 | Ambient Air Temperature Sensor - Mirror |
| 11 | Horn-Right |
| Callout | Component Name |
|---|---|
| 1 | Brake Fluid Level Switch |
| 2 | Electronic Brake Control Module (EBCM) |
| 3 | Throttle Actuator Control (TAC) Module |
| 4 | Fuse Block-Underhood |
| 5 | Battery |
| 6 | Engine Control Module (ECM) |
| 7 | Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor |
| 8 | A/C Low Pressure Switch |
| 9 | Accumulator |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.