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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
PIP5709G2021-01-25. Service bulletin. POWER TRAIN. This Preliminary information communicates the transmission used in the 2020 Corvette is on exchange with the supplier for early root cause analysis.
N2023196602020-12-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.
N2023168802020-12-21. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Service Update - Certain 2020 model year Chevrolet Corvette vehicles may have a condition where diagnostic trouble codes (DTC?s) P1967 and/or P1968 may falsely set in the transmission control module (TCM) due to an internal software misalignment. GM will update the software in the TCM. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
PI0754D2020-12-21. Service bulletin. VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS; VISIBILITY:GLASS, SIDE/REAR. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
990851001E2020-12-21. Service bulletin. EQUIPMENT; STRUCTURE. Thins informational bulletin provides information on Paint-less Dent Repair Process.
060089031F2020-12-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
000310002L2020-12-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; WHEELS. This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.
20NA2172020-12-21. Service bulletin. ELECTRICAL SYSTEM; STEERING. This service bulletin provides information/service procedure for dealers/technicians on Improved Electronic Limited Slip Differential (ELSD) Calibration.
20NA1232020-12-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated with DTCs U1961, U1983 setting.
18NA2632020-12-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only).
PIP5752G2020-12-14. Service bulletin. ENGINE; EQUIPMENT; ELECTRICAL SYSTEM. This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506, Possible valve spring concern
PIT5782A2020-12-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates and issue with programming a replacement side object detection module and engineering is working on the issue.
PIT57992020-12-14. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This Preliminary information communicates a cocnern where a flashing spot can intermittently show up on the radio display while in reverse. The PI advises that engineering is investigating the concern.
PIP5733F2020-12-14. Service bulletin. ENGINE. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
PIP5703A2020-12-14. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This Preliminary information communicates that the transmission control module is on restriction to help engineering root cause any early issue. Part restriction ended on 11/17/2020.
PIT3271K2020-12-14. Service bulletin. WHEELS; TIRES. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
PIP5759A2020-12-14. Service bulletin. ENGINE. This Preliminary information communicates 6.2L engine restriction, Contact TAC
PIP5757A2020-12-14. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates an anomaly in the transmission control module to erroneously set diagnostic trouble codes.
PIP5709F2020-12-14. Service bulletin. POWER TRAIN. This Preliminary information communicates the transmission used in the 2020 Corvette is on exchange with the supplier for early root cause analysis.
130310001G2020-12-07. Service bulletin. TIRES. This service bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use.
060089026Q2020-12-07. Service bulletin. EQUIPMENT. This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
N2023039402020-11-30. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Service update - certain vehicles have an incorrect radio-frequency (RF) identification number on the RF label affixed to the back of the radio display. Dealers are to print the insert and place it in the owner manual.
N2023142602020-11-30. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS; ELECTRICAL SYSTEM:SOFTWARE. Service Update - certain vehicles may have a condition when the front trunk is open and the vehicle speed is above 1.8 mph / 3 km/h the DIC message may indicate ?Hood Open Speed Limited to 26 MPH? or ?Hood Open Speed Limited to 82 MPH? depending on the level of software present in the vehicle. Dealers will reprogram the instrument panel cluster control module.
N2023083202020-11-30. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Customer Satisfaction Program - Certain 2020 model year Cadillac CT4, CT5, and Chevrolet Corvette vehicles, equipped with the Cadillac User Experience with embedded navigation or the Infotainment 3 premium system w/navigation (RPO IOT), may have a condition where the radio display is non-functional except for the backup camera. The embedded Multi-Media Controller (eMMC) firmware contains a defect that could cause a continuous rebooting condition. Rebooting will continue even after shutdown, resulting in a battery drain for the affected vehicle, and possibly a dead battery and a no-start condition. Dealers will replace the radio receiver.
20NA2142020-11-30. Service bulletin. STRUCTURE:BODY:DOOR; ELECTRICAL SYSTEM; VISIBILITY:GLASS, SIDE/REAR. This informational bulletin provides information for dealers/technicians on a customer concern of a front side door window intermittently auto reverses when going up or down.

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