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.
2006 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE
Electrical Component Locator: Miscellaneous
MISCELLANEOUS LOCATION
| Component | Location |
|---|---|
| Audio Amplifier | Mounted next to subwoofer. See Figure . |
| Battery | Left side of engine compartment. |
| Blower Motor Resistor Assembly | Attached to bottom of blower. |
| Cellular Microphone | Mounted in left front headliner. See Figure . |
| Cellular, Navigation & Digital Radio Antenna | Mounted to right front roof area. See Figure . |
| Data Link Connector (DLC) | Left side of dash. See Figure . |
| Digital Radio Receiver | Right side of dash. See Figure . |
| Engine Block Heater | Left side of engine block. See Figure . |
| Generator | At left front of engine. See Figure . |
| Global Positioning System (GPS) Antenna | Behind right dash cluster. See Figure . |
| Heater Element Seat Back - Driver | In driver seat back. See Figure . |
| Heater Element Seat Back - Passenger | In passenger seat back. See Figure . |
| Heater Element Seat Cushion - Driver | In driver seat bottom. See Figure . |
| Heater Element Seat Cushion - Passenger | In passenger seat bottom. See Figure . |
| Horn | Front of vehicle, behind grill. See Figure . |
| Ignition Coil 1 | In center front of cam cover at No. 1 cylinder. See Figure . |
| Ignition Coil 2 | In center front of cam cover at No. 2 cylinder. See Figure . |
| Ignition Coil 3 | In center front of cam cover at No. 3 cylinder. See Figure . |
| Ignition Coil 4 | In center front of cam cover at No. 4 cylinder. See Figure . |
| Ignition Coil 5 | In center front of cam cover at No. 5 cylinder. See Figure . |
| Inflatable Restraint Steering Wheel Module Coil | Mounted to steering wheel. See Figure . |
| Seat Belt Pretensioner - LF | At left inner "B" pillar. See Figure . |
| Seat Belt Pretensioner - RF | At right inner "B" pillar. See Figure . |
| Seat Belt Switch - Left | Part of seat belt buckle (Driver). |
| Seat Belt Switch - Right | Part of seat belt buckle (Passenger). |
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.