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Section 70 (Data Communication System - Repair Instructions)
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Section 70 (Data Communication System - Repair Instructions)
WARNING:
This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
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Repair Instructions
Body Control Module Replacement
Serial Data Gateway Module Replacement