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TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

Summary
Service Update Revision: Certain vehicles may experience an intermittent loss of communication with the Transmission Control Module (TCM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates. Dealers will perform a TCM module reprogramming.

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Date Published
MAR 31, 2023
NHTSA TSB #
10233386
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