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March 26, 2020 Service bulletin

This engineering information (EI) is requesting information from the field on conditions of Service Engine...

Chevrolet technical service bulletin PIE0546A for 2019-2020 Chevrolet Silverado 1500 and 2019-2020 GMC Sierra 1500.

Bulletin number
PIE0546A
Component
Electrical system
Summary
This engineering information (EI) is requesting information from the field on conditions of Service Engine Soon (SES) Lamp Illuminated, DTCs B2B0D and/or B2B0E Central Gateway Module Codes Unable to Communicate with HSLAN or LSLAN. Eng is attempting to root cause condition and validate a field fix.

Owners of these vehicles have filed 486 complaints in the electrical category.

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