This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
full bulletin at NHTSA ↗2011 Chevrolet Corvette powertrain problems
severe Owners of the 2011 Chevrolet Corvette have filed 10 NHTSA complaints about the powertrain, typically surfacing around 25,500 miles at roughly $2,500 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Failure mileage
Complaints
10
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2007 Corvette | 52 |
| 2008 Corvette | 30 |
| 2009 Corvette | 6 |
| 2010 Corvette | 4 |
| 2011 Corvette (this page) | 10 |
| 2013 Corvette | 3 |
| 2014 Corvette | 8 |
| 2015 Corvette | 18 |
1crash
When does it fail?
Of the 10 powertrain complaints filed for the 2011 Chevrolet Corvette, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
full bulletin at NHTSA ↗This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
full bulletin at NHTSA ↗GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
full bulletin at NHTSA ↗This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2011 Corvettes describe multiple powertrain failures that pose safety hazards. The most alarming involve shifter and linkage systems: inability to shift out of park, shift linkage cables with broken plastic grommets or bushings that prevent gear selection, and shifters stuck in drive requiring engine shutdown to stop the vehicle. These problems occurred at mileages as low as 32,000 miles.
Torque tube and bearing issues created rattling noises that sounded like marbles or loose bearings, especially when stopped. One owner had the entire torque tube assembly replaced after a propeller shaft bolt came loose and damaged the bearing; this occurred one week after GM's five-year drivetrain warranty expired.
Manual transmission owners reported clutch pedal problems: one pedal that would not return to normal height while still functioning, another that went hard to the floor during stop-and-go traffic, leaving the vehicle without power in an active traffic situation.
Transmission park-position failures allowed vehicles to roll forward while parked on level ground, and one Corvette with an automatic transmission would not start in park but continued rolling.
One owner reported a P0442 EVAP code with strong fuel odor at low speeds despite replacing the gas cap twice.
Same Chevrolet Corvette powertrain reports on nearby years: 2008
Failure modes owners describe
Torque tube/propeller shaft bearing failure
Propeller shaft bolt inside the torque tube assembly comes loose, damaging the bearing and creating rattling noises. One owner reports the entire torque tube assembly required replacement.
When: One reported at 5+ years (one week after 5-year warranty expiration); another at unspecified mileage
Symptoms owners cite: Rattling noises from under vehicle; Rattle noise sounds like loose bearing or marbles; Noise occurs when car in drive at stop light or parked
Repairs/costs cited: Torque tube assembly removal and replacement required in at least one case
Recalls/TSBs owners mention: One owner notes failure occurred one week after expiration of GM's five-year drivetrain warranty
Automatic transmission shift linkage cable failure
Plastic grommets or bushings in the shift linkage cable system break or wear, preventing proper gear selection. Multiple owners report inability to shift out of park or loss of shifter control.
When: One at 34,000 miles; another at under 32,000 miles; timing not specified on others
Symptoms owners cite: Unable to shift out of park; Shift linkage becomes loose; Cannot shift into desired gear despite selection; Vehicle continues to roll forward in park position
Repairs/costs cited: Broken bushing and stretched shifter cable identified in at least one case
Transmission park position failure (rollaway)
Vehicle will not hold park position and rolls on its own despite transmission being in park. Vehicle will not start with transmission in park but continues to roll forward.
When: While parked in parking lot
Symptoms owners cite: Vehicle rolls forward while parked on level ground; Vehicle will not start with transmission in park; Vehicle continues to roll forward with transmission in park position on its own
Repairs/costs cited: Vehicle required towing; no repair details provided
Clutch pedal failure (manual transmission)
Clutch pedal does not return to normal position or does not return fully, reducing pedal throw. In one case, pedal became stuck mid-height during operation.
When: One observed at 40 mph during driving; timing not specified on others
Symptoms owners cite: Clutch pedal does not return to normal height; Pedal stuck at approximately half height from floor; Minimal pedal throw; Clutch system works correctly despite pedal position issue
Clutch failure under load (manual transmission)
Clutch pedal goes to floor during heavy traffic stop-and-go driving and cannot complete gear change, leaving vehicle without power in traffic.
When: During heavy traffic stop-and-go operation after 30 minutes of driving; gear change from second to third at 25 mph
Symptoms owners cite: Clutch pedal goes to floor hard during gear change; Unable to complete gear change; No power to vehicle in traffic
Gear shifter stuck in drive
Gear shifter becomes stuck in drive position with no ability to shift, requiring driver to shut off engine to stop vehicle motion.
When: Timing and mileage not specified
Symptoms owners cite: Gear shifter stuck in drive; Unable to shift gears; Owner notes similar failures reported on low-mileage Corvettes
EVAP system leak (P0442 code)
Check engine light illuminates with P0442 fault code indicating small EVAP leak. Strong fuel odor present, especially at low speeds and stops. Issue persists after replacement of gas cap twice.
When: Timing not specified; vehicle fuel smell described as outstanding and potent
Symptoms owners cite: Check engine light with P0442 code; Strong fuel odor especially under 10 mph and at stops; Smell increases after filling fuel tank
Codes mentioned: P0442
Repairs/costs cited: Gas cap replaced twice without resolving issue
Synthesized from 10 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
I have a bad rattle noise coming from under the car. It sounds like some bearing, or marbles are loose. It happens when car is in drive and at a stop light or parked. My personal mechanic pinpointed the issue to the torque tube/ flex plate bearings.
Gear shifter failed. Stuck in drive...had to shut car off to stop motion and avoid collision. Other reports indicate numerous similar failures on low mileage corvettes.
Had powertrain trouble with your 2011 Chevrolet Corvette?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2011 Chevrolet Corvette?
It's a meaningful issue. 10 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 8 complaints that reported odometer mileage, most powertrain failures cluster between 17,000 and 39,000 miles, with the median around 25,500. A quarter of owners report trouble before 17,000; a quarter make it past 39,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2011/Chevrolet/Corvette.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.