Known problems
- C7 cast wheel cracking or bendinghigh
Many C7 owners, especially with wide-body Z06 and Grand Sport cars, report cracked or bent factory cast wheels, often after potholes. Cracks are usually on the inside barrel, out of sight. Low-profile tires and big wheels leave little cushion.
- Wheel bearing / hub failurehigh
C5, C6 and C7 Corvettes use sealed hub bearing assemblies. They wear over time, especially with wide tires, track use or impacts. A failing hub causes a hum or growl that changes with speed and cornering.
- Classic four-piston brake caliper leakscritical
From 1965 the Corvette used four-wheel disc brakes with four-piston calipers. Over time, moisture in the brake fluid pits the caliper bores and the seals start leaking. A common fix is rebuilding the calipers with stainless steel sleeves, which resist pitting.
- C5 "Service Column Lock" no-starthigh
The C5 uses an electronic steering column lock. When the lock motor or its sensing fails, the Driver Information Center can show "Service Column Lock" and the car may refuse to start or keep the steering locked. It's one of the best-known C5 problems.