TSB Document:

Affected Component: EQUIPMENT

Summary
This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history.  That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results. 

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Date Published
DEC 15, 2021
NHTSA TSB #
10206730
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