T42 Transmission Control Module (TCM) | 2008 Chevrolet Trailblazer SS 4L70E Transmission

COMPATIBILITYThis Transmission Control Module (TCM) is a genuine replacement for all 2008 Chevrolet Trailblazer SS models with the engine and 4L70E transmission. The GM part number for this ECU is and the hardware code is . Enthusiasts commonly refer to this module as a T42 Transmission Control Module (TCM).VIN PROGRAMMINGOnce we receive your order, we will pull a used, but inspected and tested, ECU from our inventory and program it with the latest GM calibration for a 2008 Chevrolet Trailblazer SS with the engine and 4L70E transmission. IMPORTANT! If this ECU will be installed in a 2008 Chevrolet Trailblazer SS, you must provide us with your Vehicle Identification Number (VIN) for compatibility. You may provide a VIN during checkout as a note on the order or by email immediately following your purchase.