2020 Chevrolet Corvette

The 2020 Chevrolet Corvette C8 marked a significant shift for the iconic sports car, transitioning to a mid-engine layout for the first time in its history. The standard engine option is the 6.2L LT2 V8, producing 490 horsepower and 465 lb-ft of torque (or 495 horsepower and 470 lb-ft with the optional Z51 package). The sole transmission option is an 8-speed dual-clutch automatic (DCT). Many owners praise the C8’s performance, handling, and striking design, making it a strong value proposition. However, some common complaints include electronic glitches, issues with the DCT, and some build quality concerns.

Engine

6.2L LT2 V8

• Active Fuel Management (AFM) Lifter Failure
  • Description/Symptoms: Ticking or knocking noise from the engine, particularly at idle or low speeds. This can lead to misfires, reduced power, and potential engine damage if left unaddressed. DTC codes related to cylinder misfires are often present.
  • Solution: Replacement of the affected AFM lifters, and potentially the camshaft if damage is severe. Installation of updated lifters is recommended to prevent recurrence. Some owners choose to disable AFM entirely to prevent this issue.
  • Estimated Cost to Fix: $3,000 - $6,000+
  • Recalls: None Found
• Valve Spring Failure
  • Description/Symptoms: Misfires, rough idling, and a noticeable loss of power. In more severe cases, a broken valve spring can cause significant engine damage.
  • Solution: Replacing the valve springs is the standard fix.
  • Estimated Cost to Fix: $1,000 - $3,000+
  • Recalls: None Found

Transmission

8-Speed Dual Clutch Transmission (DCT)

• Harsh Shifting/Hesitation
  • Description/Symptoms: Jerky or abrupt shifts, particularly at lower speeds. Hesitation or delays when accelerating, especially when downshifting.
  • Solution: DCT transmission flush, recalibration of the transmission control module (TCM). In more severe cases, valve body replacement might be necessary.
  • Estimated Cost to Fix: $300 (flush/recalibration) - $2,000+ (valve body replacement)
  • Recalls: None Found
• Clutch Slippage/Failure
  • Description/Symptoms: Noticeable clutch slippage during acceleration, especially in higher gears. Difficulty engaging gears or complete failure to shift.
  • Solution: Replacement of the DCT clutch pack. Requires specialized tools and expertise due to the complexity of the DCT.
  • Estimated Cost to Fix: $5,000 - $8,000+
  • Recalls: None Found

Suspension

• Front Lift System Issues (if equipped)
  • Description/Symptoms: Failure of the front lift system to raise or lower the front of the vehicle. Error messages on the infotainment screen related to the front lift system.
  • Solution: Inspection and replacement of faulty hydraulic components, sensors, or control modules associated with the front lift system.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Electrical

• Infotainment System Glitches
  • Description/Symptoms: Freezing, crashing, or unresponsive touch screen. Bluetooth connectivity issues. Loss of audio or navigation functionality.
  • Solution: Software updates, resetting the system, or replacement of the infotainment unit.
  • Estimated Cost to Fix: $0 (software update) - $1,500+ (unit replacement)
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: The vehicle’s battery drains quickly, especially when left parked for extended periods. Difficulty starting the engine.
  • Solution: Identification and correction of parasitic draws. Replacement of the battery if necessary.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found

Exterior

• Convertible Top Issues (if equipped)
  • Description/Symptoms: Failure of the convertible top to open or close properly. Noises or binding during operation. Leaks when closed.
  • Solution: Adjustment or replacement of hydraulic components, sensors, or seals.
  • Estimated Cost to Fix: $300 - $1,500+
  • Recalls: None Found

Interior

• Air Conditioning Malfunction
  • Description/Symptoms: Inconsistent cooling, failure to blow cold air, or unusual noises from the A/C system.
  • Solution: Leak test, refrigerant recharge, or replacement of faulty components such as the compressor, condenser, or evaporator.
  • Estimated Cost to Fix: $200 - $1,500+
  • Recalls: None Found

Summary

The 2020 Chevrolet Corvette C8 is a groundbreaking sports car, but it’s not without its flaws. The most concerning issues revolve around the engine (AFM lifter failure) and the DCT (harsh shifting, clutch issues), which can lead to costly repairs. Electrical glitches and convertible top malfunctions (if equipped) are also relatively common. While some issues can be addressed with software updates or minor repairs, others require more extensive and expensive work. Potential buyers should be aware of these potential problems and thoroughly inspect any prospective purchase. While no recalls are currently listed for these issues, it’s important to check the NHTSA website for the most up-to-date recall information.