17419-Service Update
Chevrolet technical service bulletin 17419 (Bulletin for 2018 Chevrolet Silverado 2500 and 2018 GMC Sierra Denali.
- Bulletin number
- 17419 (Bulletin
- Component
- Power train
- Summary
- 17419-Service Update. Certain vehicles, equipped with 6.6L diesel engine (RPO L5P) and Allison transmission (RPO MW7), may have a condition in which the automatic transmission has rough upshifts. Dealers will reprogram the transmission control module (TCM).
Owners of these vehicles have filed 8 complaints in the transmission category.
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