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U0101 Diagnostic Trouble Code Discussion for October 2015

Lost Communication With TCM


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Trouble Ticket Help Requests for DTC U0101
Help Request Posted
2011 GMC Sierra 1500 SLE 5.3L MIL Lamp on, Service Stabilitrack VIN: 1GTR2VE32B
U0101: Lost communication with tcm. Vehicle intermittently has warning lights and speedometer sweeping. It also has been a no start at times when acting up at its worst. No communicaion with pcm or abs occured when it didn't start then before diagnostic's could be performed the engine started. T...
October 13, 2015