Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #PIE0665B

2023 GMC Sierra 3500

TSB Document:

MC-10220320-0001.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or Ã¢??Service Emissions SystemÃ¢?? message on the Driver Information Center (DIC).

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Date Published: SEP 02, 2022
NHTSA TSB #: 10220320

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