Segway PT x2 Reference Manual page 133

If you are unable to solve the problem, look through the section
showing the InfoKey Controller icons that display during error or
failure conditions in "Diagnosing Errors with InfoKey Controller
Icons" on page 130. That section shows the icons and
recommended actions to take when you see certain icons.
If, after reviewing the troubleshooting procedures and the InfoKey
Controller icons, you are still unable to resolve the problem, contact
an Authorized Segway Dealer or Distributor, or Segway Customer
Care. For a list of Authorized Dealers and Distributors, visit
www.segway.com.
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