Service bulletins for the 2021 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.
770 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 20NA132 | 2021-12-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
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| 18NA073 | 2021-12-20. Service bulletin. ENGINE. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. |
| 17NA040 | 2021-12-20. Service bulletin. BACK OVER PREVENTION. This service bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. |
| PIP5797B | 2021-12-13. Service bulletin. POWER TRAIN. This Preliminary information communicates the need to replace the transmission assembly for faults related to non-serviceable internal parts.. |
| PIP5818A | 2021-12-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates additional diagnostics for P1789. |
| PIC6434A | 2021-12-13. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. This Preliminary Information communicates diagnostic tips for a technician to diagnose a C103C / C103E set in the K218 Front Suspension Lift System. |
| PIT5841A | 2021-10-25. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information on a No Crank / No Start concern caused by a No Fob Detected message caused by an internal fault of the BCM. Dealer is to replace the BCM to correct this concern. |
| PIT5851 | 2021-10-25. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue. |
| PIC6445 | 2021-09-13. Service bulletin. STRUCTURE; EQUIPMENT. This Preliminary information communicates information to the dealership technician on how to resolve a cosmetic gap in the carpeting near the center console area. |
| PIP5821 | 2021-09-13. Service bulletin. POWER TRAIN; EQUIPMENT. This Preliminary information communicates request to have used filters returned for analysis. |
| PIP5818 | 2021-09-13. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates additional diagnostics for P1789. |
| PIC6444 | 2021-09-13. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Preliminary information communicates a possible SIM issue with vehicles in the middle east. |
| PIC6384G | 2021-09-13. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, Chevrolet Corvette, Suburban, Tahoe and GMC Yukon. |
| PIP5709P | 2021-09-13. Service bulletin. POWER TRAIN. This Preliminary information communicates the transmission used in the 2020 and 2021 Corvette is no longer on restriction with the supplier for early root cause analysis. |
| PIC6384H | 2021-09-13. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE. This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, Chevrolet Corvette, Suburban, Tahoe and GMC Yukon. |
| PIP5797A | 2021-09-13. Service bulletin. EQUIPMENT; POWER TRAIN. This Preliminary information communicates the need to replace the transmission assembly for faults related to non-serviceable internal parts.. |
| PIC6441 | 2021-09-13. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM. This Preliminary Information communicates programming direction for replacing the K218 module in this vehicle. |
| N212332820 | 2021-08-09. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. Service Update. Certain vehicles may not be able to access Apps. A most notable improvement list this software update may correct is located at the end of this bulletin for conditions or concerns a customer may experience. Dealers will reprogram the radio. |
| PIE0643 | 2021-08-09. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp (MIL) illuminated on Driver Information Center (DIC). |
| PIE0625A | 2021-08-09. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a turn signal not canceling and/or mis-canceling. |
| 990420002L | 2021-08-09. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation. |
| 110089002E | 2021-08-09. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period. |
| 080730035E | 2021-08-09. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 010842001N | 2021-08-09. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines. |
| 21NA152 | 2021-08-09. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; EQUIPMENT. This service bulletin provides information for dealers/technicians on glass ultraviolet (UV) Ray protection and tint percentage. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.