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Service bulletins for the 2024 Chevrolet Silverado

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1657 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
24-NA-0422024-03-19. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This bulletin advises the tech that the HO2 sensor may be routed incorrectly and contacting the exhaust, which would require to be re-routed.
19-NA-0442024-02-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, GASOLINE. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
N2324127202023-12-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Service Update - Certain vehicles, with a 6.6L diesel engine, may have an Engine Control Module (ECM) that does not correctly provide all required data to emissions Inspection/Maintenance (I/M) testing stations. Additionally, if the brake system control module would detect certain faults, the ECM may not properly illuminate the Malfunction Indicator Lamp (Check Engine Light). Dashboard warning messages and warning lights for traction control, stability control, and brake system remain functional for such faults. Dealers are to reprogram the ECM and TCM.
N232415860-012023-09-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, DIESEL. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles with a 6.6L diesel engine. The Engine Control Module (ECM) may not properly adjust fuel injector flow for the normal variation in fuel injector flow rate characteristics. This could result in rough engine idle or increased fuel consumption. Dealers are to update the ECM with improved fuel injector flow rate data by performing Fuel Injector Flow Rate Programming with the diagnostic scan tool.
N2324158602023-09-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, GASOLINE. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles with a 6.6L diesel engine. The Engine Control Module (ECM) may not properly adjust fuel injector flow for the normal variation in fuel injector flow rate characteristics. This could result in rough engine idle or increased fuel consumption. Dealers are to update the ECM with improved fuel injector flow rate data by performing Fuel Injector Flow Rate Programming with the diagnostic scan tool.
10-06-05-002M2023-08-28. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin provides information on Clean Exhaust Filter See Owner Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
23-NA-0612023-06-21. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin advises the tech on how to check for possible exhaust leaks.
PIP5919A2023-06-13. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Preliminary information communicates that there is Restriction on the Exhaust Gas Temperature Sensors on 2024 6.6L L5P Engine Vehicles
23-NA-0612023-04-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. This informational bulletin advises the tech on how to check for possible exhaust leaks.
16-NA-3802023-04-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
16-NA-2442023-04-06. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.