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C056D on the 2015 Chevrolet Colorado

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name C056D
PIT5437A2018-01-22. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have Service Power Steering message on the Driver Information Center. If Diagnostic Trouble Code C056D is stored a Service Programming System update to the Power Steering Control Module will fix the concern. If Diagnostic Trouble Code C0545 is stored replacement of the power steering gear assembly will fix the concern.
PIT5437B2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have Service Power Steering message on the Driver Information Center. If Diagnostic Trouble Code C056D is stored a Service Programming System update to the Power Steering Control Module will fix the concern. If Diagnostic Trouble Code C0545 is stored replacement of the power steering gear assembly will fix the concern.
PIT54372017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician on the steps to repair vehicles that may have a Service Power Steering message on the Driver Information Center or Diagnostic Trouble Code C056D stored in the Power Steering Control Module. Technician will reprogram the Power Steering Control Module using Service Programming System. If code Diagnostic Trouble Code C0545 is stored technician will need to General Motors Technical Assistance Center for further assistance.
PIT5437C2017-03-23. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO REPAIR VEHICLES THAT MAY HAVE A SERVICE POWER STEERING MESSAGE ON THE DRIVER INFORMATION CENTER OR DIAGNOSTIC TROUBLE CODE C056D STORED IN THE POWER STEERING CONTROL MODULE. TECHNICIAN WILL REPROGRAM THE POWER STEERING CONTROL MODULE USING SERVICE PROGRAMMING SYSTEM.

4 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.