Is your defective GMC Yukon actually a LEMON?

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GMC TSB #16NA019

2021 GMC Yukon

TSB Document:

MC-10186058-9999.pdf

Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Summary: This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

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Date Published: DEC 01, 2020
NHTSA TSB #: 10186058

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