we put a scanner on and got this U0101 code

Question

what do i do?today my 2008 Sierra was shutting down many times on a trip from Toronto to Cambridge about an hour. total systems radio dash instruments door looks all shuting off and on ... we put a scanner on and got this U0101 code

Answer 1

Hi there,

This code indicates an issue with the TCM. Here is some info for you.

U0101 GMC - Lost Communication With Transmission Control Module

Read more: https://www.autocodes.com/u0101_gmc.html