Customer Satisfaction Program
Chevrolet technical service bulletin N212335340 for 2021 Chevrolet Silverado 1500 and 2021 GMC Sierra 1500.
- Bulletin number
- N212335340
- Component
- Electrical system
- Summary
- Customer Satisfaction Program. Certain vehicles, equipped with a 5.3 L engine, may have a diagnostic calibration in the engine control module (ECM) causing it to stay awake resulting in a parasitic drain on the battery. This could cause diagnostic trouble code (DTC) P0111 and the presence of other low voltage DTC?s. Dealers will update the ECM with the latest calibrations.
Owners of these vehicles have filed 189 complaints in the electrical category.
Vehicles covered
- Chevrolet Silverado 1500 2021 2021
- GMC Sierra 1500 2021 2021
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