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.
2007 Hummer H2 V8-6.0LFACTORY OEM SERVICE PROCEDURE
Ignition Lock: Locations
Power and Grounding Component Views
Steering Wheel and Column
Steering Wheel and Column:
1 - Steering Wheel Control Switch Assembly - Upper Left
2 - Passlock Sensor Connector
3 - Ignition Key Alarm Switch
4 - Ignition Lock Cylinder Control Actuator
5 - Ignition Lock Cylinder Control Actuator Connector
6 - Ignition Switch
7 - Ignition Key Cylinder
8 - Steering Wheel Control Switch Assembly - Upper Right
9 - Horn Switch
10 - Steering Wheel Control Switch Assembly - Lower Right
11 - C277
12 - Steering Wheel Control Switch Assembly - Lower Left
13 - 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.