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Service bulletins for the 2023 Chevrolet Corvette

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
25-NA-0652025-04-24. Service bulletin. STEERING; SERVICE BRAKES; FUEL/PROPULSION SYSTEM. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
PIT5985G2024-12-17. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER; FUEL/PROPULSION SYSTEM. This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.
24-NA-1062024-10-30. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This service bulletin provides a procedure to check the engine and bank 2 fuel injector harness to determine if its the cause of the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTCs P00C6, P312B, P217D, P2149, P312C, P01BF, P2CA0, P216D, P2155, P228C, and/or U101C Set, due to water intrusion into the electrical connector.
05-06-04-022V2024-09-05. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
20-NA-0382024-08-15. Service bulletin. FUEL/PROPULSION SYSTEM. This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.
16-NA-3832024-07-16. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
04-06-04-051I2024-07-16. Service bulletin. FUEL/PROPULSION SYSTEM. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
PIE07802024-02-29. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the Check Engine Lamp illuminated on Driver Information Center (DIC).
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.
PIP59562024-01-29. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer an issue where the vehicle may set diagnostics trouble codes related to the bank 2 fuel rail pressure sensor. The dealer is instructed to inspect associated wiring and terminals, then replace the bank 2 fuel rail pressure sensor if nothing else is found.
04-06-04-051H2023-08-28. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
PIP5891D2023-04-17. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary information communicates an engineering investigation for injector caused misfires.
21-NA-0432023-04-13. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; WHEELS; ENGINE AND ENGINE COOLING. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
PIP5891C2023-02-13. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. This Preliminary information communicates an engineering investigation for injector caused misfires.
PIP5891B2023-02-13. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This Preliminary information communicates an engineering investigation for injector caused misfires.
PIP5891A2023-01-30. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. This Preliminary information communicates an engineering investigation for injector caused misfires.
PIP58912022-12-12. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary information communicates an engineering investigation for injector caused misfires.
05-06-04-022T2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
05-00-89-072F2022-10-11. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
04-06-04-051G2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
21-NA-0432022-06-02. Service bulletin. FUEL SYSTEM, GASOLINE; SERVICE BRAKES; ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; WHEELS. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.

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