Chevrolet Corvette LS2

The Chevrolet Corvette LS2 has a reliability score of 78/100, rated "GOOD". Proven V8 muscle, watch the early gremlins

The most frequently reported issues are Crankshaft Balance & Harmonic Balancer Failure, Electrical System Wiring & Fuse Box Issues, Active Handling / Brake System Unintended Activation, Power Steering Hose Failure, among others. See the Known Issues section above for symptoms, affected mileage, and repair costs.

Yes, this is a documented issue on the LS2, typically appearing around 80,000-160,000 km. Community reports flag the LS2 crankshaft going out of balance, which can damage the torque tube and harmonic balancer. This is a recurring topic among experienced LS2 owners on CorvetteForum and is specific enough to warrant inspection before purchase, though it is not a universal failure across the production run. Typical repair cost: €600-2,200. DIY difficulty: Hard.

Yes, this is a documented issue on the LS2, typically appearing around 50,000-150,000 km. NHTSA complaints document melted fuse boxes, flickering and inoperable headlights, and a formal GM recall covering 2005-2007 Corvette wiring. Electrical faults can cascade into other system failures if left unaddressed. Typical repair cost: €400-1,800. DIY difficulty: Moderate.

Yes, this is a documented issue on the LS2, typically appearing around Any mileage. Multiple NHTSA complaints describe the active handling system deploying brakes without driver input, including at low-speed intersections. A related recall covers rear brake hydraulic lines that can contact exhaust heat and potentially fail. Typical repair cost: €300-1,500. DIY difficulty: Hard.

Yes, this is a documented issue on the LS2, typically appearing around 60,000-140,000 km. GM issued a recall for out-of-spec power steering hoses that can rupture under extreme steering maneuvers. Hose deterioration can also occur with age and heat cycles independent of the recall. Typical repair cost: €200-600. DIY difficulty: Moderate.

Yes, this is a documented issue on the LS2, typically appearing around Any mileage. GM recalled 2005-2006 Corvettes for a steering column defect affecting tilt column integrity. Typical repair cost: €300-900. DIY difficulty: Hard.

Yes, this is a documented issue on the LS2, typically appearing around Any mileage. GM recalled 2005-2007 Corvettes with removable roofs for potential roof and pillar structural concerns. Latching or sealing failures may also develop with age separate from the recall. Typical repair cost: €200-800. DIY difficulty: Low.

The LS2-powered C6 Corvette is a genuinely reliable performance car when maintained correctly, but it was only fitted from 2005 to 2007 before GM switched to the LS3 for 2008 onward, so these are now the oldest and highest-recall-exposure cars in the C6 range. The harmonic balancer and wiring faults are the two items most likely to catch new owners off guard, neither is catastrophic if caught early, but both can become expensive if ignored. Prioritize examples with documented service history and confirmed recall completion over low-asking-price cars with unknown histories. A pre-purchase inspection by an LS-familiar independent shop is money well spent on any LS2 Corvette.

Before buying, check: Run the VIN through NHTSA to confirm all 5 recalls (wiring, steering column, roof, brake lines, power steering hose) have been completed; Inspect the fuse box and wiring harness under the dash for any signs of heat damage, melting, or burnt smell; Start the engine cold and listen carefully for harmonic balancer vibration or drivetrain shudder, rev it and feel for unusual vibration; During the test drive, confirm the active handling system does not trigger unexpectedly at low speed or in normal cornering; Check oil level before purchase and monitor it over a short drive, blue smoke on cold start or deceleration indicates valve stem seal wear.

There's no fixed mileage limit, it depends on maintenance. The parts worth budgeting for proactively are: Harmonic Balancer (80,000 km), Rear Brake Hydraulic Lines (Any mileage), Fuse Box / Main Wiring Harness (Any mileage on 2005-2007 cars), Power Steering Hose (60,000 km). Engines that clear these checkpoints with documented maintenance commonly continue well beyond typical ownership periods.

Wiring defect on 2005-2007 Corvettes may cause electrical failures, fire risk, or loss of vehicle functions Remedy: GM dealer inspection and wiring repair/replacement at no cost

Steering column defect on 2005-2006 models may compromise steering control Remedy: GM dealer steering column inspection and replacement of affected components

Removable roof panel on 2005-2007 models may have structural or latch integrity issues Remedy: GM dealer inspection and repair or replacement of roof panel components

Rear brake hydraulic lines may contact exhaust heat and fail, reducing braking performance Remedy: GM dealer replacement of affected rear brake hydraulic lines

Estimated ownership cost is €4,500-9,000 over 3 years, covering consumables, insurance, and typical repair frequency on a well-maintained example, based on known issues and typical service needs.

Community-reported real-world usage suggests changing oil every 8,000 km using GM 6094M spec 5W-30 full synthetic originally, later Dexos1 Gen2 5W-30 or 5W-40 full synthetic is backward compatible, often more conservative than the official service schedule.

The LS2 is also found in: Holden Monaro V2/VZ, Pontiac GTO (2005-2006), Cadillac CTS-V (2006-2007, Gen 1), Saab 9-7X Aero, Chevrolet TrailBlazer SS, Various LS-swap project vehicles.

Broadly positive. Forum and Reddit users consistently describe the LS2 as a reliable, strong foundation for the C6. The main concerns raised are early electrical issues on 2005-2007 cars and the harmonic balancer/crankshaft balance topic flagged on CorvetteForum. High-mileage examples with modification history attract more caution, while stock low-mileage cars are generally praised.