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
| N202303030 | 2020-08-10. Service bulletin. PARKING BRAKE; EQUIPMENT. Service Update - Certain 2020 model year Chevrolet Corvette vehicles may be missing the park brake caliper guide pin retention clip. A dislocated pin may damage the wheel. Dealers will inspect for retaining clip, and if necessary, replace the missing clip. |
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| PIC6388B | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS; LANE DEPARTURE: BLIND SPOT DETECTION. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, and CT5 Side Blind Zone Module. |
| PIC6403B | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer that programming modules must be done in OFF power module using MDI2 on 2020 Cadillac CT4,CT5, and Chevrolet Corvette. |
| PIC6391B | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Electronic Brake Boost Control Module and Valve Kit, Brake Pressure Modulator. |
| PIP5693B | 2020-08-10. Service bulletin. ENGINE. The Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for the E99 Engine Control Module. The dealer technician is advised to call the GM Product Quality Center for further assistance. |
| 990089019T | 2020-08-10. Service bulletin. EQUIPMENT. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. |
| 110089005O | 2020-08-10. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only). |
| 20NA140 | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a Service Procedure for dealers/technicians on Service Front Leveling System Message - DTC U3000 SYM49 Stored. |
| 20NA138 | 2020-08-10. Service bulletin. POWER TRAIN. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management. |
| 20NA133 | 2020-08-10. Service bulletin. SEATS. This informational bulletin provides information for dealers/technicians on the removal of the Z51 spoiler to install the high wing accessory spoiler. |
| 20NA125 | 2020-08-10. Service bulletin. STRUCTURE. This technical bulletin provides repair information to correct a customer concern of hearing a rattle or creak noise from the quarter panel area while traveling at highway speeds. |
| 20NA124 | 2020-08-10. Service bulletin. STRUCTURE. This technical bulletin provides repair information to correct a customer concern of seeing a small front fascia paint chip below one or more headlamps. |
| 20NA123 | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the technicians to clear DTCs and allow the vehicle to go into sleep mode to correct the Malfunction Indicator Lamp (MIL) Illuminated and to stop DTCs setting. |
| 20NA018 | 2020-08-10. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP). |
| 19NA010 | 2020-08-10. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:ADAS:HUD:SOFTWARE. This informational bulletin provides information for dealers/technicians on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Having Rotational Feature that Allows for Adjusting of Angle of HUD Image. |
| PIE0571 | 2020-06-22. Service bulletin. STRUCTURE; EQUIPMENT. This engineering information (EI) is requesting information from the field to determine the root cause and validate a field fix for a hood alignment panel being sub-flush to fenders. |
| 070849020Q | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the IPC odometer programming method quick reference guide. |
| 060089029T | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 060089029S | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 030089006R | 2020-06-22. Service bulletin. EQUIPMENT. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores. |
| 20NA098 | 2020-06-22. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC. |
| 19NA218 | 2020-06-22. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a service procedure to correct a condition of Ticking Noise from the Engine. |
| 16NA383 | 2020-06-22. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This technical 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. |
| PIC6407B | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier. |
| PIC6403A | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer that programming modules must be done in OFF power module using MDI2 on 2020 Cadillac CT4,CT5, and Chevrolet Corvette. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.