Is your defective GMC Yukon actually a LEMON?

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GMC TSB #N212355140-01

2021 GMC Yukon

TSB Document:

MC-10231844-0001.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: Service Update- Certain vehicles may have a condition where the engine control module calibrations can be enhanced to improve the accuracy of certain diagnostic tests. Dealers are to reprogram the engine control module.

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Date Published: FEB 17, 2023
NHTSA TSB #: 10231844

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