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.

• 10217096Jul 29, 2022Transmission and drivetrain. This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
• 10217091Jul 29, 2022Transmission and drivetrain. This service bulletin provides a procedure to perform a transmission solenoid clean procedure 3 times depending on what DTC has set.
• 10217075Jul 29, 2022Engine cooling. 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.
• 10217043Jul 22, 2022Equipment. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
• 10217069Jul 21, 2022Engine cooling. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
• 10217048Jul 18, 2022Equipment. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10217774Jul 15, 2022Visibility (wipers, defrost, mirrors). 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.
• 10216049Jul 11, 2022Engine cooling. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
• 10217764Jul 5, 2022Equipment, Brakes, Electrical system. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
• 10217762Jul 1, 2022Tires, Equipment. 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.
• 10217761Jul 1, 2022Suspension, Electrical system. This Preliminary Information communicates programming direction for replacing the K218 module in this vehicle.
• 10216376Jun 29, 2022Engine 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.
• 10215655Jun 28, 2022Equipment. This warranty admin bulletin covers information on Essential Tools that include Consumable Parts.
• 10215643Jun 27, 2022Equipment, Engine cooling, Visibility (wipers, defrost, mirrors). This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
• 10215628Jun 24, 2022Equipment. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
• 10215639Jun 23, 2022Transmission and drivetrain. 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.
• 10215635Jun 23, 2022Equipment. This service bulletin provides information on an Accessory Lighted Sill Plate that Does Not Illuminate or Intermittently Illuminates.
• 10215629Jun 23, 2022Engine cooling, Electrical system. 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.
• 10216372Jun 22, 2022Visibility (wipers, defrost, mirrors). 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.
• 10215636Jun 22, 2022Suspension. 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.
• 10215626Jun 21, 2022Equipment. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen.
• 10214869Jun 15, 2022Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10216362Jun 14, 2022Seat 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.
• 10216361Jun 13, 2022Visibility (wipers, defrost, mirrors). 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.
• 10216360Jun 9, 2022Electrical system, Transmission and drivetrain. This Preliminary information communicates an anomaly in the transmission control module to erroneously set diagnostic trouble codes.
• 10214508Jun 8, 2022Engine cooling. This engineering information (EI) closure ends the need for further information from the field in regards to the Service Engine Soon (SES) lamp illuminated on the driver information center (DIC) and DTC P0101, U060F and/or U1346 Set.
• 10216354Jun 6, 2022Other or unknown. This Preliminary information communicates a parts restriction is in place for the Central Gateway Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
• 10214501Jun 6, 2022Wheels. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10213700Jun 1, 2022Equipment, Steering. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
• 10213818May 31, 2022Body and structure. This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
• 10213535May 27, 2022Engine cooling, Electrical system. 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.
• 10213816May 26, 2022Fuel system. This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable diesel fuel.
• 10213252May 19, 2022Equipment. This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires.
• 10213034May 19, 2022Engine cooling. This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
• 10213799May 18, 2022Body and structure, Equipment. This Preliminary information communicates a diagnostic tip to a technician working on a convertible with an inoperative header latch.
• 10211929May 17, 2022Equipment. Service Update Bulletin. Certain vehicles that had the Serial Data Gateway Module (SDGM) replaced in service, may not have been programmed correctly resulting in an incomplete registration of the new module. Dealers are to reprogram the SDGM.
• 10213036May 16, 2022Fuel system, Engine cooling, Brakes, Wheels. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
• 10213022May 16, 2022Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 10212954May 13, 2022Transmission and drivetrain. 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.
• 10213795May 11, 2022Equipment. This Preliminary information communicates additional diagnostics for P1789.
• 10212910May 11, 2022Wheels. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10211940May 6, 2022Transmission and drivetrain. This engineering information (EI) closure ends the need for further information from the field in regards to a Transmission Hot message displayed on DIC and/or Vehicle Will Not Disengage from Park, DTCs P0606, P0607 Set.
• 10211657May 6, 2022Transmission and drivetrain, Wheels. This informational bulletin provides information to address a chatter noise during low speed tight turn conditions (i.e. parking lot, driveway, etc.) primarily during cooler ambient temperatures.
• 10211658May 2, 2022Engine, Equipment. This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
• 10210834Apr 21, 2022Engine cooling. This service bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P2251 and/or DTC P2254 Set.
• 10210849Apr 20, 2022Engine cooling. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
• 10210841Apr 20, 2022Equipment. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
• 10211770Apr 19, 2022Visibility (wipers, defrost, mirrors). 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.
• 10211769Apr 19, 2022Electrical system. This Preliminary Information communication provides information to the technician with the correct way to remove the front shock electrical connector terminals. Technician will need to slightly bend the end of the J-38125-12A release tool. There is a purple Terminal Position Assurance that will align itself in the release position when the release tool is inserted into the release hole.
• 10211768Apr 19, 2022Electrical system. This Preliminary Information communicates diagnostic information for a dealership technician to address a paint chip in the front fascia near the headlamp capsule.

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