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March 8, 2021 Service bulletin

This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator...

Chevrolet technical service bulletin 20NA123 for 2020-2021 Chevrolet Tahoe, 2020-2021 Chevrolet Suburban and 2020-2021 Chevrolet Corvette and others.

Bulletin number
20NA123
Component
Electrical system
Summary
This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated with DTCs U1961, U1983 setting.

Owners of these vehicles have filed 199 complaints in the electrical category.

Vehicles covered

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