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GMC TSB #07-08-42-006S

2014 GMC Sierra 1500

TSB Document:

MC-10239629-0001.pdf

Affected Component: EXTERIOR LIGHTING

Summary: This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

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Date Published: JUL 13, 2023
NHTSA TSB #: 10239629

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