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June 23, 2021 Service bulletin

Emission Recall

Chevrolet technical service bulletin N212333800 for 2019-2021 Chevrolet Silverado 1500, 2021 Chevrolet Tahoe and 2019-2021 GMC Sierra 1500 and others.

Bulletin number
N212333800
Component
Electrical system
Summary
Emission Recall. General Motors has decided to conduct a voluntary emissions recall involving certain vehicles equipped with a performance air intake system (LPO RVK or 5W7). The Engine Control Module (ECM) may not have been programmed with the calibrations appropriate for the performance air intake system installed on the engine in these vehicles. Dealers will reprogram the ECM.

Owners of these vehicles have filed 837 complaints in the electrical category.

Vehicles covered

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