Transmission Replacement
WARNING: This page is about a different car, the 2015 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The Read Only Memory (ROM) is part of the control solenoid valve assembly which is part of the transmission assembly and is not serviced separately.
Perform the Transmission Solenoid Values Calibration Preset. Refer to Transmission Adaptive Pressure Reset (Transmission Solenoid Valves Calibration Preset - M4M) .