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January 12, 2022 Service bulletin

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

Chevrolet technical service bulletin PIE0658A for 2021 Chevrolet Tahoe, 2021 Chevrolet Suburban and 2021 GMC Yukon and others.

Bulletin number
PIE0658A
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 the HVAC is stuck in defrost mode and can not change to vent or any other option.

Owners of these vehicles have filed 13 complaints in the visibility category.

Vehicles covered

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