Calibrating the GamePad Touchscreen
1. Scroll to System Settings and press the A button.
2.
Scroll to Wii U GamePad and press the A button.
3.
Scroll to Calibrate Touch Screen and press the A button.
4.
Remove the Stylus and tap OK.
5.
Tap the target point with the Stylus.
6.
Repeat the process for all four corners of the screen.
7.
Press the A button to continue.
8.
Your touchscreen is now calibrated, scroll to OK and press the A button.