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Service bulletins for the 2020 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
23-NA-1392023-11-29. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This service bulletin advises the tech on what to do if the specific codes P1955 and/or P0867 have been set for the transmission to correct customer concerns of a Service Transmission Message Displayed on Driver Information Center (DIC), Malfunction Indicator Lamp (MIL) Illuminated.
21-NA-1352023-11-29. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
21-NA-0492023-11-29. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
17-NA-0872023-11-29. Service bulletin. WHEELS; STEERING; SUSPENSION. This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.
19-NA-0462023-11-22. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This informational bulletin provides information for dealers, technicians and customers on the eLSD Wheel Slip Display in DIC.
17-NA-0782023-11-22. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; 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.
17-NA-0402023-11-22. Service bulletin. SERVICE BRAKES, HYDRAULIC. This service bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies.
16-NA-0592023-11-22. Service bulletin. SERVICE BRAKES, HYDRAULIC. This service bulletin provides information for cleaning the brake calipers that may have staining/discoloring on the paint of the brake caliper.
03-00-91-001I2023-11-22. Service bulletin. WHEELS; POWER TRAIN; STEERING; SUSPENSION; ENGINE AND ENGINE COOLING. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
22-NA-1732023-11-15. Service bulletin. POWER TRAIN. This service bulletin provides information help guide technicians to known areas of possible transmission fluid leaks.
20-NA-1592023-11-15. Service bulletin. WHEELS. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
23-NA-1892023-11-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
23-NA-1882023-11-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. This service bulletin provides repair information to correct a customer concerns of transmission related issues.
19-NA-2182023-11-15. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
22-NA-1732023-11-10. Service bulletin. POWER TRAIN. This service bulletin provides information help guide technicians to known areas of possible transmission fluid leaks.
19-NA-0422023-11-10. Service bulletin. EQUIPMENT; STRUCTURE. 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.
22-NA-0812023-11-06. Service bulletin. EXTERIOR LIGHTING; STRUCTURE. This service bulletin provides repair information to correct a customer concern of paint peeling or chipping on the front fascia at the headlamp or fender seam.
17-NA-2392023-11-02. Service bulletin. SERVICE BRAKES, HYDRAULIC. This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time.
13-03-10-001K2023-10-29. Service bulletin. EQUIPMENT; WHEELS. This service bulletin provides information on summer tire performance and tire cold weather cracking.
05-00-89-029F2023-10-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
99-00-89-019Y2023-10-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
23-NA-1762023-10-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This service bulletin advises the technician to take a screen shot of the park position sensor and send it to TAC, where they will determine trans replacement or vehicle repair to correct customer concerns of a Dead Battery, No Start, and/or Vehicle Will Not Shut Down.
22-NA-0412023-10-25. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Air Conditioning Not Blowing Cold Air.
17-NA-1702023-10-25. Service bulletin. WHEELS. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
01-06-01-011O2023-10-25. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

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