Service Update
GMC technical service bulletin N212336570 for 2021 GMC Sierra 1500 and 2021 Chevrolet Silverado 4500.
- Bulletin number
- N212336570
- Component
- Fuel system, gasoline
- Summary
- Service Update. Certain trucks may falsely set fuel injector diagnostic trouble codes P026C and/or P20EE. Dealers will reprogram the engine control module (ECM).
Vehicles covered
- GMC Sierra 1500 2021 2021
- Chevrolet Silverado 4500 2021 2021
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