Chevrolet Silverado 1500 2024 — service campaign
Bulletin N242455301 · NHTSA communication 11006623 · issued Aug 26, 2024
Service campaign
communication type
Engine
component
2024
model years
5
vehicle entries
Official summary
Customer Satisfaction Program. Certain vehicles, equipped with a 5.3L gas engine (RPO L84), may have contamination in the engine block. Dealers are to replace the engine.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.