Is your defective GMC Sierra 3500 actually a LEMON?

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GMC TSB #PIT5744B

2021 GMC Sierra 3500

TSB Document:

MC-10208030-9999.pdf

Affected Component: BACK OVER PREVENTION

Summary: This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

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Date Published: JAN 14, 2022
NHTSA TSB #: 10208030

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