WenmarOpen by Wenmar Pro

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
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.
PIT5569B2022-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
PIT4261H2022-08-15. Service bulletin. EQUIPMENT; TIRES. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
PIC6441A2022-08-15. Service bulletin. SUSPENSION:FRONT; ELECTRICAL SYSTEM. This Preliminary Information communicates programming direction for replacing the K218 module in this vehicle.
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.
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.
PIC5260F2022-07-25. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
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.
PIT5099F2022-07-25. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
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.
PIC6390B2022-07-25. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a parts restriction is in place for the Central Gateway Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
22-NA-0432022-07-25. Service bulletin. EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE; EQUIPMENT:ELECTRICAL. Phone Left In Wireless Cellphone Charger Reminder.
19-NA-2182022-07-20. 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-1352022-07-12. Service bulletin. EQUIPMENT. This warranty admin bulletin covers information on Essential Tools that include Consumable Parts.
12-01-37-001F2022-07-12. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
PIE0700A2022-07-12. Service bulletin. POWER TRAIN. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Malfunction Indicator Lamp (MIL) Illuminated, Service Rear Axle Message On Driver Information Center (DIC), Transmission Shifting Concerns.
22-NA-1322022-07-12. Service bulletin. 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.
22-NA-1312022-07-12. Service bulletin. EQUIPMENT. This service bulletin provides information on an Accessory Lighted Sill Plate that Does Not Illuminate or Intermittently Illuminates.
22-NA-1152022-07-12. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides information for U.S. dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
22-NA-0702022-07-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.

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