2011 Chevrolet Malibu occasionally getting code U0101-00 lost communication with transmission control module

Tiny
HGWK
  • MEMBER
  • 2011 CHEVROLET MALIBU
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 108,000 MILES
2011 Chevrolet Malibu randomly getting code U0101-00 lost communication with transmission control module. It would run fine for long periods of time then suddenly it will trigger reduced engine power and this code will appear, the car will usually be fine after it's restarted. So far I have checked the grounds and cleaned them, checked wiring and continuity, however I did not do the complete extensive check mostly visual and I haven't found anything damaged or any water or oxidation damage at the connectors. At this point I am suspecting a TCM being an issue, they are fairly cheap used and easy to access so I was wondering if I get a used one does the part number have to match or are they interchangeable if they are the same ones with the same connector and can the used ones be programmed to my car? Thanks
Saturday, October 18th, 2025 AT 7:44 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
It does seem like the TCM is out, and yes it does need to be reprogrammed to help restart the adaptation. But you might want to just try it, it wont hurt anything if you don't drive it to much. Also, if it had a problem it should throw a code.
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Saturday, October 18th, 2025 AT 12:41 PM

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