Both rear rims (wheels) cracked, resulting in repeated loss of tire pressure. Discovered at 13,500 miles, still under bumper to bumper warranty, GM declines warranty coverage stating it must have occurred from a road hazard. Corvette forums discuss multiple 2018 grand sports with similar cracked rims. Documentation from dealer available on request.

- Santa Clarita, CA, USA

I just purchased the vehicle 11-04-2019. The trunk pops open when I get in the car and sit down. There is also a problem when backing up to pull off and turning to the left or right, the car will start jerking and there's a popping sound.

- Atlanta, GA, USA

While getting new tires installed, the technician noticed one of my wheels was cracked. I had not hit any potholes or anything that would cause major stress to the wheel. If I had not needed new tires, the crack likely wouldn't have been found until it catastrophically failed.

- Elgin, TX, USA

My 2018 Corvette ZO6 upon inspection of the tire losing air, dealership found both right side wheels to be bent..theses are chrome aluminum wheels with 6,513 miles on the car. Date of service was Jun 4, 2019. I payed to have them repaired.. next time, on Sept. 17, 2019, tire was losing air. This time the dealership found the rim to be cracked..I then had to pay for a new rim. Dealership doesn't stand behind there customers and neither does GM. Absolutely a problem in the manufacturing.. that happened with only 8716 miles on my car..

- Wakefield, MA, USA

At approximately 5700 miles on October 10, 2019, inflate tire alert came on indicating there was only 17 lbs of air in driver's rear tire. This was a drop of 13lbs pressure in 2 days. Upon inspection at local tire shop, it was revealed that the left (driver's) rear wheel had two cracks near he tire bead sealing area on the inner side of the wheel, allowing air to slowly leak out of the tire.

- Brownstown, MI, USA

Vehicle was at highway speed when dash indicator showed that the passenger rear tire was rapidly losing air pressure. Car was taken to the local Chevrolet dealership where their technician discovered that the passenger rear wheel was cracked. The crack was not due to striking road debris or a pothole. The vehicle has not been in an accident. The dealer refused to acknowledge that the cost of a replacement wheel should have been covered as part of the vehicle warranty because of a manufacturer's defect.

- Brookeville, MD, USA

9-23-19 was told by discount tires that my rear wheel is bent, and there is crack on one of the front wheel. Car is only 9200 miles. And GM won't cover it under their bumper to bumper warranty.

- Hacienda Heights, CA, USA

07/08/19 ' I took the vehicle to coggin Chevrolet at 10,053 miles for a problem right rear tire going flat. They could find no problem. 09/17/19 ' took vehicle to tires plus in ponte vedra fl to analyze why passenger side rear tire is losing air at a rapid pace. It lost 34 lbs. Of air in 10 days. They advised that the wheel was cracked. 09/19/19 - I just received a call at 3:18 P.M. from melanie vergotz, service advisor, coggin Chevrolet. She says GM refuses to fix the wheels (there are now 2 with cracks and are bent, (the right front and rear). GM claims the damage is a result of impact. That's what I figured they would say. I told the service advisor that she should inform the service manager that they are telling me I must drive an unsafe vehicle. I have never, never, hit a pothole or any road condition that would cause these wheels to be damaged.

- Ponte Vedra, FL, USA

While on a road trip noticed a vibration through steering wheel. Took into dealer for diagnosis. All 4 wheels were bent. 2018 Corvette grand sport 4,450 miles.

- Denton, TX, USA

The contact owns a 2018 Chevrolet Corvette. The contact noticed that the rear passenger side tire was not holding air. The vehicle was taken to grand prize Chevrolet Buick GMC (32 NY-304, nanuet, NY 10954, (845) 623-6060) and was informed that the vehicle was not covered under warranty. The vehicle was later taken to an independent mechanic who diagnosed that the rear passenger side wheel was fractured and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and provided case number: [xxx]. the approximate failure mileage was 4,450. The consumer stated the manufacturer was out of the necessary tires and was unaware when they would be available. The consumer purchased after market wheels. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- New City, NY, USA

While driving at highway speeds, noticed vibration that appeared to be coming from wheels. Scheduled appointment with classic Chevrolet grapevine tx. Was advised by service department that all four wheels were bent. Wheels has no visible damage however, the wheels are bent. Vehicle only had around 8500 miles when I noticed the issue. Made contact with Chevrolet Consumer Affairs regarding issue. Was advised issue not covered under warranty. Chevrolet offered $750 voucher for the purchase of accessories. I am aware of the class action lawsuit being filed in California regarding the same issues on the Corvette grand sport (which I have) and the Corvette ZO6.

- Fort Worth, TX, USA

At 21,000 miles, I have now replaced 3 rear wheels due to cracking. These are the stock wheels. I am a frequent freeway and surface road driver.

- Houston, TX, USA

Moving at 55 mph on highway and hit a slight bump in the road causing the rear passenger side rim to crack.

- Morrill, NE, USA

Hi, I have a 2018 Corvette (grand sport). I have aprox 8000 miles and brought in for service to a local GM dealer(bill buck Chevrolet). They told me one of my rear wheels is bent. They also told me they can't get me a replacement (they don't know why) and my car has been there for two weeks. I have a case open with GM, but so far have not received any help from them. I am shocked that my wheel is bent as there are no pot holes around and I only drive around town and do not race or ever ran over anything, etc. I have heard a lot of other Corvette owners complain about their wheels bent or cracked as well, so feel this is a major safety issue. I felt the need to make sure you are aware of this. Thank you.

- Venice, FL, USA

Drove approx 800 mi on interstate roads. Parked car for 2 days, started car lo tire pressure light 23#. did not drive it, waiting to take to Chevy dealer next morning as we were planning our return 800 mi trip back home. Low tire pressure warning now at 20#, right rear passenger tire. Go to hendrick Chevy, charleston SC, approx 1 mi from hotel. They come back and tell us nothing wrong w/ tire, the inside of the rim is cracked. Less than 5500 miles on 2018 gs; black rims. Ordered new rim to be shipped in. Bringing damaged rim back to in to show to dealer where we purchased car from, ed martin Chevrolet, anderson, in. To the best of our knowledge we did not hit any potholes or road debris on the drive down. Low tire pressure light did not come on at any time during the 2 days of driving the 800 mile trip from in to SC. The car was parked at the hotel on the evening of 5/19 and was not moved or started until the evening of 5/14 when we were packing up in anticipation of heading home on 5/15. That is the first time the light came on dash and onstar sent a message to our phones & emails. Car is in shop now, expected to be replaced late today; will take pics of the rim w/ crack.

- Indianapolis, IN, USA

After driving on normal road conditions city and highway I noticed my tire pressure to be dropping after taking it to the dealership they informed me that the wheel/rim was cracked.

- Fremont, CA, USA

My father ([xxx]) drove his 2018 Corvette Z06 (18K miles and still under Chevrolet/GM manufacturer's factory warranty) to a doctor's appointment on April 11, 2019. Upon concluding his appointment and returning to his car, he noticed his tire pressure senor instrumentation indicated that one of his rear tires had low pressure. He immediately drove to the dealer (jn Chevrolet - honolulu, Hawaii) as he suspected he had a leak. Upon arriving at the dealership and having their service team looking at the tire, they discovered small cracks in the rear rim. There were/are no other signs of damage or impact. They also discovered that the other rear rim had similar cracks. The dealer said it was probably due to hitting potholes and it would not be covered under the warranty. We requested the warranty claim be escalated to GM. GM responded (reference attached pdf) that it was not covered under the warranty. They failed to provide any reasons as to why it was not covered. I also personally elevated to GM and the verbally responded that it was considered normal wear and tear'not a warranty item. This seemed an odd response especially since there was no visible signs of damage and nothing to indicated there was impact to cause a crack. In reviewing other complaints, this seems to be a common safety issue and my sense is GM is not willing to address due to the scope of the problem. Hoping this report can be used to inform any ongoing discussions. Thank you. [xxx] registered owner: [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Kapolei, HI, USA

Wheels cracked and bent at less than 3500 miles. Known problem within Corvette community. GM wont do anything about it. Front bumper paint peeling off, where the bumper meets fenders. This is a known factory defect.

- Pleasant Hill, CA, USA

Two separate wheels have now cracked or warped on the vehicle at no fault of my own. This is happening in normal driving conditions (commuting) without any accident, severe pot-holes, or impact damage. It appears that GM has known about this for some time, as the technician at the dealership informed me that "that's just the way these cars are, expect to replace a lot of rims". when it happens, you can either gradually or suddenly lose complete air pressure in your wheel. That is dangerous. My vehicle has less than 10K miles with two cracked rims. Cost $800 each, and GM refuses to cover it under warranty.

- Los Angeles, CA, USA

Rear wheel bent/cracked. Dealer/Chevy blames the roads and won't cover under warranty.

- La Mesa, CA, USA