Every C8 Corvette uses an eight-speed dual-clutch transmission (DCT) mounted behind the engine. There's no manual option. If you're coming from an older Corvette with a conventional automatic or a manual, the DCT feels different, and knowing how it works will help you get the most from it.
How a DCT works
A dual-clutch transmission is essentially two gearboxes in one case. One clutch handles the odd gears, and the other handles the even gears. While you're in one gear, the next gear is already pre-selected, so shifts can happen very quickly. The clutches are computer-controlled, so there's no clutch pedal.
Everyday behavior
- Low-speed manners. DCTs don't have a torque converter, so low-speed creeping and parking-lot maneuvers can feel less smooth than a conventional automatic. That's normal behavior.
- Hills. Avoid holding the car still on a hill with throttle. Use the brake, and let the car's hill hold feature do its job. Holding on throttle makes the clutch slip and adds heat.
- Neutral. Selecting neutral works differently than in a traditional automatic. Read the owner's manual so you know how to do it, and how to prepare the car for a car wash or for being pushed.
- Manual mode. The paddles let you shift yourself. The car may still shift on its own to protect the engine or transmission.
- Launch control. It's fun, but repeated launches add stress and heat. Use it sparingly.
Service and maintenance
- Follow the service schedule in your owner's manual for transmission fluid and filter service.
- DCTs are sensitive to the correct fluid. Only use what the owner's manual specifies.
- Software updates are part of normal DCT life. Ask your dealer whether any updates apply to your car.
- Keep the battery healthy. Many electronic systems, including transmission controls, depend on good voltage.
Things to watch for
Contact a dealer if you notice:
- A transmission warning message
- Harsh, delayed or unusual shifts that are new
- A burning smell after normal driving
- Fluid leaks under the rear of the car
Some owners of early cars have reported transmission concerns that were handled under warranty. Check for open recalls using the official NHTSA VIN lookup or by asking a dealer, especially on a used car.
Buying a used C8
- Ask for service records, including any transmission repairs or software updates.
- Ask whether the car has been tracked or launched frequently.
- During a test drive, pay attention to low-speed engagement, smooth upshifts and downshifts, and any warning messages.
Safety note
If you get a transmission warning that limits power or says the car is not safe to drive, pull over in a safe place and follow the guidance in your owner's manual.