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Service bulletins for the 2021 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
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.
PIT5832S2024-12-16. Service bulletin. ENGINE; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIT5962B2024-12-12. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
21-NA-0432024-12-10. Service bulletin. STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. This 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.
PIP60262024-12-09. Service bulletin. POWER TRAIN; UNKNOWN OR OTHER. This Preliminary Information communication advises the technician on the need to provide additional information when creating a TAC case for a DCT transmission
PIT5985F2024-12-05. Service bulletin. ELECTRICAL 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.
PIT5832R2024-12-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIP60162024-12-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates that due to parts shortages caused by the devastation of hurricane Helene we are restricting transmission assemblies in service.
PIC65812024-12-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communicates diagnostic information to dealership techs in assisting them with determining OEM mufflers from aftermarket ones.
24-NA-2462024-12-05. Service bulletin. ENGINE. This service bulletin provides diagnostic aid information for dealers/technicians on Vehicle Speed Limited.
PIP60242024-12-05. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the dealer the correct time, mileage and Labor operation used for the first covered Maintenace.
PIT6279A2024-12-05. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates an issue where the odometer mileage is incorrect after performing a module setup procedure and a FSE will be dispatched to the vehicle to correct the odometer error.
24-NA-2392024-12-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
PIT6279B2024-12-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue where the odometer mileage is incorrect after performing a module setup procedure and a FSE will be dispatched to the vehicle to correct the odometer error.
PIP6016A2024-12-04. Service bulletin. POWER TRAIN. This Preliminary information communicates that due to parts shortages caused by the devastation of hurricane Helene we are restricting transmission assemblies in service.
PIT62792024-12-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue where the odometer mileage is incorrect after performing a module setup procedure and a FSE will be dispatched to the vehicle to correct the odometer error.
04-06-01-029K2024-12-04. Service bulletin. POWER TRAIN; STEERING; ENGINE. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
24-NA-2292024-12-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
24-NA-1082024-11-21. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides a procedure to correct radio software concerns.
24-NA-2222024-11-19. Service bulletin. ENGINE. This service bulletin provides information on a Whoosh Noise from Engine Area While Driving.
24-NA-0402024-11-16. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
24-NA-0312024-11-16. Service bulletin. SERVICE BRAKES. This service bulletin provides information for having brake pulsation and/or repeat brake pulsation.
22-NA-1322024-11-15. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION. This service bulletin informs the technician that the shocks should not be modified by removing spacer to lower vehicle and should not be submitted as a warranty repair whenever there is a customer concern of a Service Front Lift System Message on DIC or fluid leaking from shocks.
22-NA-0262024-11-15. Service bulletin. SERVICE BRAKES. This service bulletin provides information for dealers/technicians on Brake Pulsation, Noise and/or Visible Pitting Condition to Brake Rotor Surface.
19-NA-0422024-11-14. Service bulletin. STRUCTURE:BODY. This service bulletin provides information for dealers/technicians on a customer commenting on seeing a yellow tint appearance to hood and engine cover’s exposed carbon fiber parts.

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