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.
2009 Hummer H3 L5-3.7LFACTORY OEM SERVICE PROCEDURE
Body Control Module: Locations
Instrument Panel/Center Console Component Views
Behind the I/P Components - 1 of 2
1 - Instrument Panel Cluster (IPC)
2 - Accessory Switch
3 - Hazard Switch
4 - Inflatable Restraint I/P Module
5 - Ambient Light Sensor
6 - Radio Antenna
7 - Transfer Case Shift Control Module
8 - Digital Radio Receiver (U2K)
9 - I/P Courtesy Lamp - Right
10 - Body Control Module (BCM)
11 - Accessory Power Outlet - I/P 1 and Accessory Power Outlet - I/P 2
12 - Vehicle Communication Interface Module (VCIM) (UE1)
13 - I/P Courtesy Lamp - Left
14 - Data Link Connector (DLC)
Right Kick Panel Components
1 - Body Control Module (BCM)
2 - Body Control Module (BCM) X1
3 - Body Control Module (BCM) X2
4 - X204
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.
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