This listing is for part number 12583560 PCM that is programmed for your vehicle with the newest updates from GM using your VIN to match your vehicle. After you purchase the PCM you will need to provide us with your VIN so we can program the PCM before we ship it to you. This computer is used and came from a salvaged vehicle. This part is compatible with the following services numbers 12583560, 19117215, YBYZ
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SIERRA 1500 PICKUP 04-06 Electronic Control Module; (LH front under battery), w/hybrid option (opt HP2), below PCM cover