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 L5-3.5LFACTORY OEM SERVICE PROCEDURE
Ignition Switch: Locations
Steering Wheel and Column Component Views
1 - Inflatable Restraint Steering Wheel Module Coil
2 - Inflatable Restraint Steering Wheel Module Connectors
3 - Ignition Switch
4 - Ignition Lock Cylinder Control Actuator
5 - Steering Wheel Position Sensor
6 - C201 Steering Column Harness to I/P Harness
7 - C275 Steering Column Harness to I/P Harness
8 - Ignition Switch Connector
9 - Turn Signal/Multifunction Switch
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.