Is your defective GMC Sierra 2500 actually a LEMON?

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TSB Document:

Affected Component: UNKNOWN OR OTHER

Summary
This Preliminary information communicates that there is an update calibration for the ecm concerning a P11D5 setting on 2023 Chevrolet and GMC trucks equipped with the L5P engine.

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Date Published
SEP 09, 2022
NHTSA TSB #
10224282
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