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January 29, 2026 Service bulletin

Unknown or other

Chevrolet technical service bulletin PIT6480 for 2019-2021, 2023-2024 Chevrolet Silverado 5500, 2019-2024 Chevrolet Silverado 4500 and 2019-2024 Chevrolet Silverado 6500.

Bulletin number
PIT6480
Component
Unknown or other
Summary
This preliminary information communicates an issue with how to repair a brake fluid leak at the B356 Brake Pipe Pressure Switch connector.

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