What could be causing the steering wheel to appear upside down on the GT DD Pro or CSL DD after the QR2 upgrade?
If your steering wheel is positioned 180° off-center after powering on, the Base-Side Quick Release has most likely been installed in the opposite orientation (rotated 180° compared to the previous setup).
Since direct drive wheel bases do not have a fixed mechanical center position, this can be easily corrected by recalibrating the wheel center.
Instructions for recalibrating the center position can be found in the steering wheel’s quick guide or in the tutorial video linked below: