Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2011 Chevrolet Corvette owners, lightly cleaned up (personal details are redacted by NHTSA).
Same fuel smell issue as what GM kinda covered with Bulletin #[redacted] However that is a 10 year / 120,000 miles limit. I'm under the miles but over on time. Just purchased the vehicle (was told "there are no recalls" because they were allow to all it a "Special Warranty Adjustment". Of course the previous owner didn't get this addressed ... nor WOULD they if the smell started later. So ... still a fire hazard ... even the fix offered is replacing plastic parts with same plastic parts and crossing fingers. Dealers are quoting over 16 hours ALONE for a fix pushing costs to over $3000. And this can reoccur in the future when that plastic also fails. Metal fittings for fuel ... seems like a better choice costing only a few dollars more. Please do something for us chumps that bought the unfixed cars used. At least require dealer to fully inform buyers. …
My entire garage is filled with gas fumes after I filled my car up to full yesterday. I drive my car once every 2 weeks and this is filling my garage with fumes. There are no visible leaks, there is a technical service bulletin regarding a gas tank issue that expired. What component or system failed or malfunctioned, and is it available for inspection upon request? UNKNOWN, the vehicle is available for inspection. How was your safety or the safety of others put at risk? I could smell gas fumes from inside my garage door. Has the problem been reproduced or confirmed by a dealer or independent service center? It will be tomorrow. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Not yet. Haven't got that far. …
I purchased this 2011 corvette on December 31st, 2021. I drove it home and parked it in the garage. The next day I smelled gas but couldn't find any leaks. Yesterday I had the car on a lift and changed the transmission filter and fluid. While I was underneath it, I noticed liquid streaks on the left fuel tank and possibly on the right tank also. Today I googled corvette C6 gas leaks and found all the information on the problems regarding plastic on fuel pumps cracking or seals failing. I am sure that my car is having the same problem. It sounds like GM sent owners letters (possibly in 2017) which stated they would extend the warranty for 20 years or 120,000 miles. Many owners stated that their cars were over the time limit or miles when they received the letter. I feel GM should recall these cars since a fuel leak has to be the most dangerous item out there. …
The fuel component on this vehicle is the concern. The fuel vapor is very strong inside the car and especially outside around the driver's side. When parked in the garage, the fuel smell would seep into the house. I am afraid to park it inside the garage due to strong fuel vapor coming out of the vehicle. I am afraid that the strong fuel vapor might ignite due to other power sources inside the garage. This issue is well known in the Corvette community, on Corvette Forum. I have scheduled to bring it into a Chevy dealership on 6/8/21 for an inspection and repair. There is no drivability issue with vehicle. It starts and drives fine, just the fuel smell that is overwhelming. There is no sign on fuel leaks on the floor. There is no warning lamps, nothing that would indicate a fuel system issue. The car only has less than 19k miles as of this writing.
My 2011 Grand Sport Corvette fuel system was repaired on 2/14/22 at no cost to me by special policy 15682-03. Now, 4 years later, the same problem has occurred again. I notice fuel smell in my garage with the tank nearly full after fill-up, and upon inspection, I notice evidence of fuel leaking along the side of the primary tank behind the driver's seat which is the same problem encountered before. GM tells me no additional help for repair is not forthcoming due to the age of the vehicle. My originating dealer has first quoted me $4000.00 and later quoted me $3400.00 to repair the car. I am reluctant to discard my Corvette which remains in excellent condition otherwise. I am currently filling the car 2/3 full so I can continue using and enjoying it without wasting fuel or creating a dangerous vapor condition in my garage.
Upon filling fuel tank and returning home and parking vehicle in garage, fuel smell and leak was confirmed on floor of garage. Vehicle was taken to a automotive center to have inspected and automotive center stated " fuel leaking when filling with fuel." Automotive center states "was able to inspect with an inspection camera and found that top of fuel tank is leaking at the fuel pump module seal to the tank. Also can see the vapor valve is wet from fuel as well. Recommend both pumps and evap valve." Concerned for safety of vehicle when driving and parked.
Strong odor of gas fumes in driver compartment, seems to eminate from driver side. Plastic flange on top of fuel pump is cracked and spews gas to surrounding area. Smell is constant regardless of fuel level. GM has been aware of problem for years but has yet to issue recall. They did issue temporary special coverage adjustment not adequate for earlier model years where issue was systemic. Yes my car is available for inspection. This is health and safety issue which should warrant a recall. Fire hazard as well. No warning lamps appear on dash.
I bought a 2011 Grand Sport Corvette and if I fill the tank over half full the gas smell is unbearable. Some one needs to recall these cars. This issue is very serious. Fuel leaks out the top of the tanks, and will then drip down the back side onto the hot exhaust. If ignored this could result in a fire and possible death. If parked overnight in a garage, the vapor will fill the garage and could easily be triggered into an explosion and fire from a gas water heater or other ignition source.
I bought this vehicle in [redacted] with about 39k miles. About a year after purchase, I began smelling gasoline in my garage after I filled the tank. I have consulted Corvette forum ([redacted]) and find this is a common problem. If I fill the tank more than halfway, it seems to occur consistently. I recognize this car has no warranty, but this seems to be both common and a serious safety concern.
Gasoline drips out under the car after fill up. About 1/2 quart comes out and makes a puddle about 5 foot in diameter. Happens after every fill up. I turned in a NTHTSA complaint about fuel vapor smells after fill up on 9/6/2020 but heard nothing back. The problem has obviously progressed to leaking liquid gasoline on the ground.
Fuel System complaints in other Corvette years
Frequently asked questions
How common are fuel system problems on the 2011 Chevrolet Corvette?
NHTSA has 49 complaints about the fuel & propulsion system of the 2011 Chevrolet Corvette, 58% of the model year's 85 complaints.
Is there a recall for 2011 Chevrolet Corvette fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2011 Chevrolet Corvette, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2011 Chevrolet Corvette fuel system problems start?
Half of the complaints with a recorded mileage happened before about 50,000 miles, and 22% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.