2021 Chevrolet Corvette: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 7 owner complaints for the 2021 Chevrolet Corvette that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11702491 (filed 12/02/2025): “Noise from the rear of the vehicle. took vehicle in to dealership. the determined that it was a left side loose axle nut. this is clearly a safety issue. it may not have been torqued properly at the factory. the vehicle is a 2021 with only 5500 miles. they did the repair/tightened the axle nut…”
- NHTSA complaint ODI #11574448 (filed 02/28/2024): “The contact owns a 2021 chevrolet corvette. the contact stated that upon starting the vehicle, the transmission warning light illuminated on the instrument panel. the vehicle was taken to the dealer, who diagnosed a failure with the transmission filter. the vehicle was repaired, but the failure reoc…”
- NHTSA complaint ODI #11564334 (filed 01/09/2024): “The contact owns a 2021 chevrolet corvette. the contact stated that an unknown warning light illuminated while driving at an undisclosed speed. the contact also stated that while the vehicle was parked, there was condensation seen underneath the rear of the vehicle. the vehicle was taken to a dealer…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Diagnosis needs a scan tool; repair or replacement needs a lift, transmission jack and the manufacturer's fluid fill/relearn procedure. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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