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May 18, 2021 Service bulletin

This engineering informational bulletin is requesting information from technicians to perform the check...

Chevrolet technical service bulletin PIE0633 for 2021 Chevrolet Blazer, 2021 Chevrolet Traverse and 2021 Buick Enclave and others.

Bulletin number
PIE0633
Component
Visibility: defroster/defogger/HVAC system
Summary
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the A/C not cooling the vehicle cabin and/or the A/C air is not cold coming from the vent.

Owners of these vehicles have filed 3 complaints in the visibility category.

Vehicles covered

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