Is your defective GMC Terrain actually a LEMON?

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GMC TSB #21NA181

2021 GMC Terrain

TSB Document:

MC-10207910-9999.pdf

Affected Component: POWER TRAIN

Summary: This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation.

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Date Published: DEC 21, 2021
NHTSA TSB #: 10207910

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