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Hummer H3 Engine Computers

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All Hummer H3 PCM (Powertrain Control Module) Hummer H3 ECM (Engine Control Module) & Hummer H3 ECU (Electronic Control Unit) from Flagship One, Inc. are precisely programmed and flashed to meet your vehicle's specific requirements.

Our Hummer H3 PCM, Hummer H3 ECM and Hummer H3 ECU units that are labeled plug & play will not require any additional programming. All of our control units are OEM, meaning you will get your vehicles original module. Feel free to chat with one of our agents regarding any ECU testing or ECU repair.