Lot 6600B: 2010 Chevrolet Corvette Grand Sport 3LT

Great question! The 2010 Corvette Grand Sport with the LS3 V8 and TR6060 6-speed manual is generally a very reliable performance car, but like any vehicle, it has a few known weak points to watch for:

Engine & Drivetrain:

• Valve spring failures – Early LS3 engines (including some 2010s) had occasional valve spring issues that could cause excessive valve noise, compression loss, or internal damage if not addressed. If you’re hearing ticking, it’s worth investigating.
• Oil consumption – Some LS3 engines consume a bit more oil than expected. Keep an eye on levels between changes.
• Pilot bushing – On manual cars like this one, the pilot bushing can wear and cause input shaft issues, though this is more common with hard use.

Interior & Electrical:

• Airbag light – A very common issue: the connector under the driver’s seat can work loose, causing the airbag light to illuminate. Usually fixed by unplugging, applying dielectric grease, and reconnecting.
• CD player failures – The 6-disc changer can display “CD Mechanical Error” or lock up, sometimes taking the clock and radio functions with it.
• Steering column lock – The electronic steering column lock can fail, preventing the car from starting (this was a recall item, so check if it’s been addressed).

Body & Exterior:

• Cloudy/ Sandblasted headlights – The headlight lenses tend to get pitted and cloudy over time, especially at highway speeds (70-80 mph). The clearcoat on the bumpers actually holds up better than the plastic lenses.
• HVAC blend door actuators – The temperature control actuators can fail, causing hot or cold air to blow when you don’t want it.

Transmission Quirks (not failures):

• Skip shift – The TR6060 forces 1st to 4th shifts at low RPM to save fuel. Most owners delete this with an inexpensive eliminator.
• Clutch delay valve – There’s a valve in the clutch hydraulics that softens engagement. Some owners remove it for a more direct feel.

The Good News: The LS3 in the Grand Sport is actually more reliable than the LS7 in the Z06 (which had known valve drop issues). With only 27,452 miles, this particular car has very low mileage for its age, which is a big plus—many of these issues show up with hard use or high miles.

Would you like me to help you dig deeper into any of these issues, or perhaps pull up some comparable Grand Sports so you can see what else is out there?