Chevrolet Silverado 1500 2023 — technical service bulletin
Bulletin N232409842 · NHTSA communication 10248696 · issued Jan 10, 2024
Technical service bulletin
communication type
Fuel System, Gasoline
component
2023
model years
2
vehicle entries
Official summary
Service Update. Certain vehicles equipped with a 2.7L engine (RPO L3B), may have an Engine Control Module (ECM) that does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
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.