2020 Chevrolet CORVETTE problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
34 owner complaints analyzed
4 distinct recall campaigns
1,100 mi median reported failure mileage
Scope: 2020 model year. Data snapshot: . 19 complaints include usable failure mileage.
Most common problems
Structure:Body is the most frequently named component, appearing in 10 of 34 complaints (29.4%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 6 | 17.6% |
| Electrical and battery issues | 4 | 11.8% |
| Transmission and shifting | 3 | 8.8% |
| Engine operation | 1 | 2.9% |
| Fuel system concerns | 1 | 2.9% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Structure:Body | 10 |
| Power Train | 6 |
| Unknown Or Other | 5 |
| Engine | 4 |
| Visibility/Wiper | 4 |
| Electrical System | 3 |
| Service Brakes | 3 |
| Back Over Prevention: Rearview System Braking | 1 |
Structure:Body: 10; Power Train: 6; Unknown Or Other: 5; Engine: 4; Visibility/Wiper: 4; Electrical System: 3; Service Brakes: 3; Back Over Prevention: Rearview System Braking: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 18 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 18; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (18). 15 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2020 | 19 |
| 2021 | 2 |
| 2023 | 3 |
| 2025 | 4 |
| 2026 | 6 |
2020: 19; 2021: 2; 2023: 3; 2025: 4; 2026: 6
Pattern summary
Structure:Body leads the component reports. Braking behavior appears in 6 complaint narratives. Electrical and battery issues appears in 4 complaint narratives. Transmission and shifting appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11328387 · 2020-06-11 (June 11, 2020)
THE 2020 CHEVROLET CORVETTE IS TRULY A UNIQUE LOOKING AUTOMOBILE AND IT ATTRACTS ATTENTION EVERYWHERE YOU GO. ALMOST EVERYBODY WANTS TO LOOK AT IT. ON 04/30/2020, I WAS AT A LOCAL SHOPPING CENTER AND SEVERAL PEOPLE WERE ADMIRING THE CAR AND LOOKING AT IT. THE VEHICLE WAS SITTING STATIONARY IN A PARKING SPACE, THE ENGINE WAS RUNNING AND THE VEHICLE WAS IN PARK. WHEN THE PEOPLE HAD FINISHED ADMIRING THE CAR, I GOT INTO IT AND PROCEEDED TO THE EXIT. FROM THE EXIT, I TURNED ONTO THE MAIN ROAD (A US DESIGNATED HWY) AND ACCELERATED. WHEN I REACHED…
Owner-reported narrative. 950 miles reported. Look up ODI 11328387 at NHTSA ↗
Owner report 11343025 · 2020-08-03 (August 3, 2020)
I JUST GOT MY 2020 CORVETTE DELIVERED LAST WEEK. I AM THE FIRST OWNER OF THE CAR AND TODAY I WAS DRIVING UP PCH TOWARDS MALIBU. WENT UP TO 80-90 MPH AT TIMES. DROVE FOR ABOUT 100 MILES. I STOPPED TO GET SOMETHING TO EAT. GOT BACK IN MY CAR AND PROCEEDED UP THE CANYONS FOR SOME SPIRITED DRIVING. THE CAR IS ALREADY BROKEN IN AT 1300 MILES. I DECIDED TO PULL OFF THE ROAD TO TAKE SOME PICTURES OF THE CAR. I PUT THE CAR IN PARK WITH THE PARKING BRAKE ON AND LEFT THE ENGINE RUNNING WITH THE KEY FOB IN THE CUPHOLDER. AFTER I GOT THE SHOTS I WANTED,…
Owner-reported narrative. 1,260 miles reported. Look up ODI 11343025 at NHTSA ↗
Owner report 11343348 · 2020-08-04 (August 4, 2020)
I TRIED TO REGISTER THE VEHICLE AND CANNOT REGISTER THE CAR. IT FAILS SMOG. 02 SENSOR NOT READY. THE BATTERY HAS NOT BEEN DISCONNECTED SINCE IT'S FIRST MILE DRIVEN.
Owner-reported narrative. 1,304 miles reported. Look up ODI 11343348 at NHTSA ↗
Owner report 11385542 · 2020-12-29 (December 29, 2020)
AT THE TIME OF INCIDENT THE VEHICLE HAD 660 MILES. MOST OF THE ACCUMULATED MILES ARE: 60% STREET AND 40% HIWAY. I WAS INSPECTING THE WHEELS AND TIRE WHEN I SPOTTED A SIGNIFICANT AMOUNT OF GREY/BLACK COLORED GREASE RANDOMLY COVERING THE INNER WHEEL. UPON FURTHER INSPECTION I NOTICED THAT THE GREASE WAS SPLATTERED ON THE EMERGENCY BRAKE UNIT, SENSORS AND WIRING HARNESS. THE GREASE WAS ISOLATED TO THE REAR PASSANGER AXLE. I SUSPECT THAT THE GREASE CAME FROM A DEFECTIVE CV BOOT. TOOK VEHICLE IN TO CHECKOUT THE PROBLEM AND THEY DETERMINED THE GREASE…
Owner-reported narrative. 660 miles reported. Look up ODI 11385542 at NHTSA ↗
Owner report 11531051 · 2023-07-08 (July 8, 2023)
I had a complete transmission failure while on a road trip over July 4th. I just read that GM was doing a recall on the Transmission Control Module but it does not include my car, which is what failed on my car at 19,000 miles. My trip was interrupted, we spent two days paying for hotel & rental car in Springfield, MO and now my car is fixed with new TCU in Springfield, but I live in DFW area. If my car had a recall I would have had it fixed before our trip and this all could have been avoided. Now I have to figure out how to get my …
Owner-reported narrative. Look up ODI 11531051 at NHTSA ↗
Owner report 11561551 · 2023-12-22 (December 22, 2023)
The contact owned a 2020 Chevrolet Corvette. The contact stated that while driving at an undisclosed speed, the contact came to a complete stop at a stop sign. The contact stated that the light turned green, the accelerator pedal was depressed, and the vehicle started jerking with a rumbling sound coming from the engine compartment. In addition, the engine independently shut off, however the transmission failed to properly shift, pressure level at zero, check engine light, idle creeping disabled, and service transmission warning lights illumin…
Owner-reported narrative. 7,200 miles reported. Look up ODI 11561551 at NHTSA ↗
Owner report 11737257 · 2026-05-12 (May 12, 2026)
The dual clutch transmission on my 2020 C8 Corvette has a diagnostic code of p1955. This was determined after the service light on the vehicle illuminated and it was taken to service at the dealership. Other codes that stored included p0868 and p0869 which indicate low hydraulic pressure and high hydraulic pressure respectively. The p1955 code is an internal fault that requires complete replacement of the transmission according to GM service bulletins. This bulletin also advises that no repair attempts are to be made except for complete rep…
Owner-reported narrative. Look up ODI 11737257 at NHTSA ↗
Owner report 11385574 · 2020-12-30 (December 30, 2020)
THERE IS A STRONG SMELL OF GASOLINE IN THE TRUNK. THE SMELL IS STRONGER WHEN THE GAS TANK IS RECENTLY FILLED OR FULL.
Owner-reported narrative. 1,000 miles reported. Look up ODI 11385574 at NHTSA ↗