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U0101 on the 2016 Honda Civic

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 U0101
A17060C2017-08-31. Service bulletin. Service bulletin - The vehicle will not come out of park, and will not crank and/or start. Additionally, multiple indicators are on with DTCs U0038 (TM-CAN Malfunction [TCM-PCM]) and sometimes U0101 (Lost Communication) stored. There is an internal malfunction with the transmission control module (TCM).
A17-0122017-07-28. Service bulletin. Service bulletin - The vehicle will not come out of park, and will not crank and/or start. Additionally, multiple indicators are on with DTCs U0038 (TM-CAN Malfunction [TCM-PCM]) and sometimes U0101 (Lost Communication) stored. There is an internal malfunction with the transmission control module (TCM).
A17-0122017-06-28. Service bulletin. SERVICE BULLETIN - THE VEHICLE WILL NOT COME OUT OF PARK, AND WILL NOT CRANK AND/OR START. ADDITIONALLY, MULTIPLE INDICATORS ARE ON WITH DTCS U0038 (TM-CAN MALFUNCTION [TCM-PCM]) AND SOMETIMES U0101 (LOST COMMUNICATION) STORED. THERE IS AN INTERNAL MALFUNCTION WITH THE TRANSMISSION CONTROL MODULE (TCM).
ATS1611012017-05-23. Service bulletin. "TECHLINE SUMMARY ARTICLE - DO YOU HAVE A VEHICLE IN YOUR SHOP BECAUSE OF THIS ISSUE? • THE STARTER WON’T CRANK THE ENGINE, AND/OR THE VEHICLE WON’T SHIFT OUT OF PARK. • MULTIPLE INDICATORS ARE LIT ON THE INSTRUMENT PANEL, AND DTC U0038 (TM-CAN MALFUNCTION [TCM-PCM]) AND U0101 (GAUGE CONTROL MODULE LOST COMMUNICATION WITH A/T) ARE SET. • THERE’S NO COMMUNICATION WITH THE TRANSMISSION. WE CURRENTLY HAVE THIS ISSUE UNDER INVESTIGATION. SO FAR, WE’VE FOUND THE ROOT CAUSE IS THE TCM."

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.