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March 16, 2021 Service bulletin

This informational bulletin directs dealers to the correct path needed to correct a vehicle with the...

Chevrolet technical service bulletin 21NA062 for 2020-2021 Chevrolet Silverado 2500 and 2020-2021 GMC Sierra 2500.

Bulletin number
21NA062
Component
Equipment
Summary
This informational bulletin directs dealers to the correct path needed to correct a vehicle with the condition of Add-On Equipment Inoperative, Sulfur/Acid Smell During Vehicle Operation based on the correct cause.

Vehicles covered

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