If you're having trouble pairing your Touch Controllers, search for your issue in the information in Community Discussion Forum.
To pair your Touch controllers to your Rift, follow these steps:
Make sure your headset is connected.
Launch the Oculus App.
In the left-side navigation, select Devices and select your Rift. In the right-hand panel, select Device Setup.
Click through the informational screens that follow.
When the Set Up Your Input Devices screen appears, select Touch, and click Next.
After another informational screen, the Pair Your Left Touch screen appears. Hold down the Menu and Y buttons, as indicated on the screen. After a few moments, the left Touch controller should be successfully paired.
Continue and follow the same procedure for the right Touch controller.