2020 Chevrolet Corvette Technical Service Bulletins

924 technical service bulletins (TSBs) are on record for the 2020 Chevrolet Corvette. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10185707Dec 1, 2020Transmission and drivetrain. This Preliminary information communicates the transmission used in the 2020 Corvette is on exchange with the supplier for early root cause analysis.
• 10184480Nov 25, 2020Equipment. This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only).
• 10184527Nov 20, 2020Electrical system, Engine. 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.
• 10184135Nov 20, 2020Equipment, Electrical system, Engine. 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
• 10184501Nov 19, 2020Engine, Transmission and drivetrain. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
• 10184130Nov 19, 2020Electrical system, Equipment. This Preliminary information communicates and issue with programming a replacement side object detection module and engineering is working on the issue.
• 10184127Nov 19, 2020Electrical system, Back-over prevention (rear 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.
• 10184120Nov 17, 2020Engine. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10184114Nov 16, 2020Electrical system, Transmission and drivetrain. 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.
• 10184488Nov 13, 2020Equipment, Electrical system. This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated with DTCs U1961, U1983 setting.
• 10184524Nov 12, 2020Transmission and drivetrain, 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.
• 10184499Nov 12, 2020Equipment, Wheels. This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.
• 10184105Nov 11, 2020Wheels, 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.
• 10184496Nov 10, 2020Steering, Electrical system. This service bulletin provides information/service procedure for dealers/technicians on Improved Electronic Limited Slip Differential (ELSD) Calibration.
• 10184504Nov 6, 2020Visibility (wipers, defrost, mirrors). This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
• 10184503Nov 6, 2020Body and structure, Equipment. Thins informational bulletin provides information on Paint-less Dent Repair Process.
• 10184095Nov 5, 2020Engine. This Preliminary information communicates 6.2L engine restriction, Contact TAC
• 10184093Nov 2, 2020Transmission and drivetrain, Electrical system. This Preliminary information communicates an anomaly in the transmission control module to erroneously set diagnostic trouble codes.
• 10184092Nov 2, 2020Transmission and drivetrain. This Preliminary information communicates the transmission used in the 2020 Corvette is on exchange with the supplier for early root cause analysis.
• 10183212Oct 30, 2020Electrical system, Visibility (wipers, defrost, mirrors), Body and structure. 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.
• 10183211Oct 30, 2020Equipment, Engine cooling. This service bulletin provides information on Improved Oil Filter Gasket Design for Spin-On Oil Filters PF63, PF64 and PF48.
• 10182581Oct 29, 2020Equipment. This Preliminary Information communicates helpful information on diagnosing general customer concerns related to a power folding top.
• 10183230Oct 28, 2020Equipment. 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.
• 10182580Oct 28, 2020Engine cooling. 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
• 10182579Oct 28, 2020Brakes, Electrical system. 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.
• 10183198Oct 27, 2020Electrical system. This service bulletin provides information and a service procedure for dealers/technicians on OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes.
• 10183195Oct 23, 2020Engine cooling, Equipment. This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0521 and/or P06DD Set.
• 10182570Oct 23, 2020Engine cooling. 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
• 10182567Oct 22, 2020Engine cooling. 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
• 10182565Oct 22, 2020Engine cooling. This Preliminary information communicates 6.2L engine restriction, Contact TAC
• 10183227Oct 20, 2020Body and structure, Electrical system. 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.
• 10182560Oct 20, 2020Electrical system. This Preliminary information communicates a parts restriction is in place for the Central Gateway Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
• 10183180Oct 19, 2020Engine, Fuel system. This technical bulletin provides a service procedure to correct a customer concern of Fuel Gauge May Intermittently Display Erratic and/or Empty Readings and MIL with DTC P0462.
• 10182555Oct 16, 2020Engine cooling. 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
• 10183124Oct 14, 2020Brakes. This service bulletin provides information for cleaning the brake calipers that may have staining/discoloring on the paint of the brake caliper.
• 10183145Oct 13, 2020Wheels, Electrical system, Equipment. This informational bulletin provides information for dealers, technicians and customers on the eLSD Wheel Slip Display in DIC.
• 10183143Oct 13, 2020Equipment, Wheels. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10182552Oct 13, 2020Engine cooling. 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
• 10182551Oct 13, 2020Transmission and drivetrain. This Preliminary information communicates an anomaly in the transmission control module to erroneously set diagnostic trouble codes.
• 10183133Oct 12, 2020Tires. This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.
• 10182549Oct 12, 2020Equipment. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier.
• 10183781Oct 9, 2020Tires. This service bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use.
• 10183780Oct 9, 2020Equipment. This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
• 10182538Oct 7, 2020Transmission and drivetrain. This Preliminary information communicates the transmission used in the 2020 Corvette is on exchange with the supplier for early root cause analysis.
• 10182535Oct 5, 2020Engine cooling. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
• 10183141Oct 2, 2020Brakes. This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time.
• 10183218Oct 1, 2020Electrical system, Equipment. 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…
• 10181724Sep 30, 2020Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10181675Sep 29, 2020Equipment, Body and structure. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
• 10181171Sep 28, 2020Equipment. 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.

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