Is your defective GMC Yukon actually a LEMON?

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GMC TSB #PIT5759C

2021 GMC Yukon

TSB Document:

MC-10179640-9999.pdf

Affected Component: EQUIPMENT ADAPTIVE/MOBILITY

Summary: This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting.Â Engineering is root causing the concern.

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Date Published: AUG 18, 2020
NHTSA TSB #: 10179640

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