2100324

Flash: Transmission Control Module (TCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set in the Hybrid Control Processor (HCP) module: ? P16F0-00 - SPI Comm Hardware Fault. Customers may also comment on one or more of the following: ? Shifts rough occasionally when coming down to a stop. ? Shifts rough occasionally when accelerating. ? Shifts rough when transitioning from EV to Hybrid operation on low SoC. ? Shifts rough when engines starts. ? On part throttle accelerations with little to no battery available the transition from battery power to engine on is harsh and abrupt. ? The engine oil life on dashboard drops down too fast when the engine oil dilution reaches high level without the ability to recover. This bulletin involves reprogramming the TCM, Powertrain Control Module (PCM) and the Auxiliary Hybrid Control Processor (AHCP) also known as Power Inverter Module (PIM), with the latest available software.