NHTSA Complaint #11441072 — 2016 CHEVROLET CORVETTE

Rear rim (20 inch by 12 inch, cast aluminum) cracked in two places. These are the fifth and sixth cracks I've had in two rear rims. Reported it to the dealer and they effectively said "sue GM", won't help me. When the rim cracks, the tire looses air pressure and the car's sensors tell me the air pressure is low. These cracks appear on the inside of the rear wheels without any trauma to the rim. I do have the rim available for inspection upon request. Obviously a cracked rim could result in the rim coming apart while I'm driving resulting in an uncontrollable car and an accident that could be life threatening. Mileage at the moment is 37,201. Pictures of the original cracking were sent to a metalurgy professor who opined the rim was obviously defective. GM refuses to acknowledge the cracking issue with these Z06 rims and now won't even find me a replacement rim.