Service Update (population expanded)
Chevrolet technical service bulletin N202300791 for 2020 Chevrolet Silverado 2500 and 2020 GMC Sierra 2500.
- Bulletin number
- N202300791
- Component
- Equipment adaptive/mobility
- Summary
- Service Update (population expanded). In some vehicles, equipped with diesel engines, the Diesel Exhaust Fluid (DEF) system may not immediately reactivate, as it should, after the vehicle?s control system finds that a DEF heater fault is no longer present. In these vehicles, after such a fault is detected as absent, DEF system reactivation, including DEF injection, may not occur until the ignition key is cycled. Dealers are to reprogram the reductant control module.
Vehicles covered
- Chevrolet Silverado 2500 2020 2020
- GMC Sierra 2500 2020 2020
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