2020 Chevrolet Corvette TSBs
921 manufacturer communications for the 2020 Chevrolet Corvette sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2020 Corvette problem report covers complaints, recalls, and investigations.
What the bulletins cover
Warranty extensions, campaigns & software updates
Worth checking your VIN against — these can mean free or reimbursed work if your vehicle qualifies.
Certain vehicles listed above may have a condition in which drivers may not be notified of a rear turn-signal lamp failure. GM will update software calibrations in the vehicle’s exterior lighting control module. For vehicles that are capable of receiving software changes using…
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from…
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from…
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The…
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
Most recent service bulletins
The 20 most recent of 921 communications on file. The complete set is searchable on NHTSA's page for this vehicle.
PI to help diagnose A/C concern
This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates that characterizing certain parts is no longer required, the service instruction was changed but technicians are still trying to perform the function causing further confusion.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an event like a lightning strike, battery jump started backwards, failure over the air update, etc.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical…
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
New Vehicle Monitoring Programs Section in IVH
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
This PI communicates that previously not serviced parts in the transmission are now allowed to be serviced.
This PIC assists dealership technicians in diagnosing a folding top concern in which he/she may want to command the folding top header latch to operate using the scan tool.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.