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August 30, 2025 Service bulletin

This P/I is to advise to inspect the stacked plate heat exchanger as possible root

Chevrolet technical service bulletin PIP5845B for 2021-2022 Chevrolet Silverado 1500, 2021-2022 Chevrolet Tahoe and 2021-2022 GMC Sierra 1500 and others.

Bulletin number
PIP5845B
Component
Unknown or other
Summary
This P/I is to advise to inspect the stacked plate heat exchanger as possible root cause for any trans concern.

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