2018 CHEVROLET CORVETTE Complaints

8-SPEED AUTOMATIC TRANSMISSION 'BUCKS' AND 'CLUNKS' DURING ACCELERATION OR DURING UP SHIFTING. IT DOES THIS EITHER IN FULL AUTOMATIC OR MANUAL SHIFTING MODE.

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). *TT

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.

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.

THE BRAKES HAVE NOW FOUR TIMES FAILED TO STOP THE VEHICLE. WHEN PRESSED THEY GET HARD, THEN GO DOWN TO THE FLOOR AND THERE'S A PULSATING FEELING. THE VEHICLE JUST CONTINUES TO GO TO THE FLOOR. ON THE THIRD OCCASION THAT IT HAPPENED, THE VEHICLE IN A NON-EMERGENCY SITUATION, WOULD NOT STOP IN TRAFFIC AND REAR-ENDED ANOTHER VEHICLE. IT IS DANGEROUS AND GM IS NO HELP.

REAR WHEEL BENT/CRACKED. DEALER/CHEVY BLAMES THE ROADS AND WON'T COVER UNDER WARRANTY.

WHILE TRAVELING ALONG 240 IN MEMPHIS,TN I HIT AN UNLEVEL PIECE OF PAVEMENT. MY SPEED WAS MAYBE 45 MPH. WHILE THE CAR WAS AT THE DEALER THEY SAID THAT I HAD 4 BEND RIMS. UPON INSPECTION OF THE WHEELS EACH WHEEL HAD BEEN BENT ON THE INSIDE OF THE RIMS. THIS WAS CAUSING THE CAR TO DRIVE POORLY AND CAUSE THE STEERING WHEEL TO VIBRATE.

CORVETTE GRAND SPORT WHEELS HAVE BENT SEVERAL TIMES IN NORMAL DRIVING CONDITIONS. TWO WHEELS -1 FRONT, 1-REAR HAVE BEEN REPLACED BY OWNER. THE WHEELS SEEM TO BE NOT STRUCTURALLY STRONG ENOUGH FOR NORMAL DRIVING CONDITIONS

BOUGHT THE CAR APRIL 7TH 2018 WITHIN 500 MILES NOTICED A BAD VIBRATION, RETURNED TO THE DEALER AND THEY KEPT IT FOR A MONTH DISCOVERING THE LEFT REAR WHEEL WAS OUT OF ROUND /BENT WITH NO VISIBLE DAMAGE. THEY REPLACED IT AT NO CHARGE BECAUSE IT WAS WITHIN A WEEK OF DELIVERY. A COUPLE OF MONTHS LATER THE CAR AT AROUND 4000 MILES DEVELOPED ANOTHER BAD VIBRATION. I TOOK IT TO TIRE DISCOUNTERS WHICH WAS MUCH CLOSER THAN THE DEALERSHIP AND THEY TOLD ME BOTH LEFT SIDE WHEELS WERE OUT OF ROUND WITH NO VISIBLE DAMAGE. THE DEALERSHIP WILL NOT REPLACE THESE DUE TO THE MILES ON THE CAR. I KNOW PEOPLE WITH THESE GRAND SPORT AND Z06 CORVETTES THAT HAVE HAD THESE SAME ISSUES WITH THE WHEELS. THE CORVETTE FORUMS ARE FULL OF SIMILAR STORIES. THESE WHEELS ARE TOO WEAK FOR THESE CARS AND NEED TO BE REPLACED

TWO BRAKE ROTORS ON 2018 CORVETTE GRAND SPORT HAVE PERMANENT RUST BANDS THAT DO NOT WEAR OFF UNDER BRAKING. THEY ARE SCORING AND GROOVING THE BRAKE PADS INSTEAD. GM BLAMES THE DEALER FOR POOR MAINTENANCE BUT NEITHER WILL REPLACE BECAUSE THEY SAY IT'S ONLY 'COSMETIC' ACCORDING TO THEM. THEY DID ADVISE ME TO REPLACE THE ROTORS MYSELF AT A COST OF $4000 ON A BRAND NEW CAR! IT HAS HAD THE BAND SINCE DAY 1! WHEN THE CAR IS WASHED OR THE ROTOR GETS WET IT FUSES TO THE PADS AND LOCKS THE WHEEL. YOU HAVE TO ROCK THE CAR GET IT TO BREAK LOOSE. THEY KEEP REFERENCING A GM SERVICE BULLETIN THAT PROHIBITS DEALERS FROM REPLACING OR RESURFACING RUSTED ROTORS. THIS IS NOT NORMAL SURFACE RUST. IT IS PERMANENT AND IS COMPROMISING THE BRAKE PADS! THIS IS DEFINITELY A SAFETY CONCERN.