What is the next step after replacing the XY shifter assembly if calibration is not the chosen option?

After replacing the XY shifter assembly, checking the fluid level is crucial because the new assembly may impact the transmission's operation and, consequently, its lubrication system. Proper fluid levels are essential for the transmission’s functionality. If the fluid level is low, it can lead to poor shifting performance and potential damage to the transmission components.

Verifying the fluid level ensures that the new assembly operates under optimal conditions. Additionally, accurate fluid levels help maintain the transmission temperature and pressure, both of which are vital for functionality. It is fundamental to follow this step to ensure that the system runs smoothly after making such a significant replacement.