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November 2, 2021 Service bulletin

Engine

Chevrolet technical service bulletin PIT5863 for 2021 Chevrolet Blazer, 2021 GMC Acadia and 2021 Cadillac XT5 and others.

Bulletin number
PIT5863
Component
Engine
Summary
This Preliminary information communicates that a vehicle may be encountered with a buzz or rattle type noise emanating from the exhaust. The dealer technician is directed to replace the exhaust system.

Owners of these vehicles have filed 89 complaints in the engine category.

Vehicles covered

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