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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
21-NA-0612022-09-08. Service bulletin. EQUIPMENT. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).
22-NA-1732022-09-07. Service bulletin. POWER TRAIN. This service bulletin provides information help guide technicians to known areas of possible transmission fluid leaks.
22-NA-0842022-09-07. Service bulletin. STRUCTURE; EQUIPMENT. This service bulletin provides information for dealers/technicians on on unable to open folding top, DTC B19E1 sym64 possibly set.
21-NA-2832022-09-07. Service bulletin. SUSPENSION. This service bulletin provides a service procedure to correct a customer concern of a Service Front Suspension Lift System Message Displayed on Driver Information Center (DIC) with DTC C103C and/or C103E Symptom 64 Set.
19-NA-0422022-09-07. Service bulletin. EQUIPMENT. 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.
18-NA-3062022-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
11-00-89-005T2022-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
20-NA-0652022-09-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
19-NA-0442022-08-29. Service bulletin. ENGINE AND ENGINE COOLING; 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.
22-NA-1572022-08-19. Service bulletin. POWER TRAIN. This service bulletin provides repair information (OTA update or TCM reprogram) to correct a customer concern of vehicle not passing California smog testing.
22-NA-1272022-08-16. Service bulletin. EQUIPMENT. This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.
PIC6447A2022-08-15. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary information communicates information to dealership technicians on diagnosing and repairing a water leak into the passenger side carpeting area after the AC has been used.
PIC6441A2022-08-15. Service bulletin. SUSPENSION:FRONT; ELECTRICAL SYSTEM. This Preliminary Information communicates programming direction for replacing the K218 module in this vehicle.
22-NA-1272022-08-04. Service bulletin. EQUIPMENT. This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.
21-NA-0492022-08-04. Service bulletin. POWER TRAIN. This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
21-NA-0332022-08-04. Service bulletin. POWER TRAIN. This service bulletin provides a procedure to perform a transmission solenoid clean procedure 3 times depending on what DTC has set.
17-NA-0782022-08-03. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic.
22-NA-0802022-08-03. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
21-NA-2442022-08-03. Service bulletin. EQUIPMENT. This service bulletin provides a repair procedure to correct a customer concern of a No Fob detected message on Driver Information Center (DIC) and/or No Crank / No Start condition.
18-NA-3062022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
04-00-89-015X2022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
PIP5212D2022-07-25. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Technician should replace the head gasket if they are found installed backwards.
PIT5913A2022-07-25. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. This Preliminary information communicates a condtion where SD card removed is being displayed on the radio display intermittently. ThisPI advises that engineering is working on a fix for this issue
PIC64612022-07-25. Service bulletin. SEAT BELTS; ELECTRICAL SYSTEM. This Preliminary Information communicates how a dealership technician should access the hatch / rear compartment in case of electrical and / or mechanical lock cylinder failure.
PIP58522022-07-25. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates an anomaly in the transmission control module to erroneously set diagnostic trouble codes.

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