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June 10, 2021 Service bulletin

Equipment: electrical: navigational system(global positioning system)

GMC technical service bulletin PIC6418B for 2018 GMC Terrain, 2018-2020 Buick Regal and 2018-2019 Cadillac CTS and others.

Bulletin number
PIC6418B
Component
Equipment: electrical: navigational system(global positioning system)
Summary
This Preliminary information communicates steps to perform to determine if the concern relates to a Navigation loading concern that is under engineering investigation.

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