These Hummer H3 ECMs are GM units and you will receive a 1 year warranty from us at PCM of NC. We will also program your VIN and latest GM operating system onto it (included in cost). All connections/connectors are confirmed good before the part leaves our location. These modules do not include any performance tuning. If you would like to purchase tuning or a core with tuning please click HERE.
We do not require your core to be sent in as a core charge refund on this listing. These are purchased outright.
Please note: Any time you install another PCM into your vehicle that is not original to it, you will need to do a security relearn and a CASE relearn (whether it is from us, the dealership, or any other vendor). The security relearn can be done by yourself, it is a simple process. The CASE relearn (crank angle sensor error relearn) needs a Tech 2 scan tool or a higher end snap on scan tool to complete. Needing a CASE relearn will not keep the vehicle from driving, but should be done within two weeks of install if prompted by a check engine light for it.