2004 Chevrolet Colorado

Tire size 245/45R20 I purchased a set a 4 Cooper Discoverer H/T Plus tires for my truck in 2022. I haven't driven a lot of miles on them due to the fact that I live on the Island of Oahu, in Honolulu, Hawaii and have a lot of thread life left. I noticed that the sidewalls on 2 of 4 tires are cracking and separating. I removed them from the vehicle due to the risk of tire blowout and injury in the event of an accident. I've emailed Cooper tires for information and warranty resolution and have yet had a reply.

TL* THE CONTACT OWNS A 2004 CHEVROLET COLORADO EQUIPPED WITH TBC TIRES, TIRE LINE: SIGMA SHADOW, AND TIRE SIZE: P225/75R15. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, THERE WAS AN ABNORMAL NOISE COMING FROM THE FRONT PASSENGER SIDE TIRE. THE CONTACT DISCOVERED THAT THE FRONT PASSENGER SIDE TIRE TREAD SEPARATED FROM THE SIDE WALL OF THE TIRE. THE TIRE WAS NOT REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE TIRE AND VEHICLE FAILURE MILEAGE WAS 79,166.

TL*THE CONTACT OWNS A 2004 CHEVROLET COLORADO EQUIPPED WITH COOPER COBRA G/T RADIAL TIRES, TIRE SIZE P255/70/15. THE CONTACT WAS DRIVING APPROXIMATELY 35 MPH AND THE VEHICLE BEGAN TO VIBRATE. THE VEHICLE WAS TAKEN TO A TIRE CENTER WHERE THEY INFORMED THAT THE REAR PASSENGER SIDE TIRE TREAD BELT EXHIBITED BUBBLING. THE TIRE WAS REPLACED. THERE WAS A RECALL UNDER NHTSA CAMPAIGN ID NUMBER 06T016000 (TIRES:TREAD/BELT). THE DOT NUMBER WAS NOT INCLUDED IN THE RECALL. RECENTLY, THE FRONT PASSENGER SIDE TIRE TREAD EXHIBITED A SIMILAR DEFECT. THE CONTACT WAS IN THE PROCESS OF REPLACING THE TIRE. THE FAILURE MILEAGE WAS 69,000.

THE FIRST AND ONGOING PROBLEM GRINDING IN FRONT LEFT, DRIVER, SIDE WHEEL AREA. MANY ATTEMPTS HAVE BEEN MADE TO FIX THIS PROBLEM, THEY STARTED OUT CHANGING THE WHOLE FRONT END, ALONG WITH ALIGNMENTS, AFTER SOME ADJUSTING THE PROBLEM WILL SEEM TO GO AWAY ONLY TO RETURN WITH IN 2 MONTHS SECOND, TIRES WORN FROM INSIDE OUT ALIGNMENT, NEW TIRES, I WAS TOLD ONE REASON WAS THE TRUCK WAS DIRTY. I DO NOT FEEL THIS IS A REASON FOR TIRE WEAR. NEW TIRES SAME PROBLEM. THIRD, TRUCK NOT ENGAGING WHEN SHIFTED INTO GEAR. THIS IS ON GOING, WE HAVE TAKEN IT IN MANY TIMES, THE MODULAR FOR THE 2-4H-4L DRIVE WAS CHANGED, STILL HAVE PROBLEM, THEY CLAIM CAN NOT FIX IF IT DOES NOT HAPPEN WITH THEM,, I VIDEO TAPED IT, THEY WILL NOT LOOK AT VIDEO. PROBLEM IS INTERMITTENTLY, AND HAVE BEEN ASKED TO DO DIFFERENT THINGS TO THE TRUCK WHEN IT HAPPENS, THE PROBLEM IS HAPPENING MORE OFTEN NOW, THE PROBLEM SEEMS TO BE GROWING. AND STILL NO ANSWER TO THIS OR OTHER PROBLEMS, THE DEALER SHOULD HAVE TOOK BACK THE TRUCK AND REPLACED IT, IF THEY CAN NOT BE FIXED. *TR

I NOTICED UNEVEN WEAR ON MY TIRES. SO, I STOPPED AT A GARAGE AND I WAS TOLD THE TIRES WERE UNDER INFLATED EVEN THOUGH I HAD THE TIRES AT THE RECOMMENDING PSI. I PUT THE PSI IN THAT THE TECHNICIAN RECOMMENDED AND THE PROBLEM SEEMED TO GO AWAY. I WENT IN TO HAVE A ROUTINE OIL CHANGE DONE AT A LOCAL SHOP A YEAR AFTER THIS, AND I NEEDED TO REPLACE ALL 4 TIRES. THEY HAD WORN DOWN ON THE INSIDE TREAD TO THE STEEL WITHIN ONLY 26K MILES. THE VEHICLE HAS BEEN DRIVEN CONSERVATIVELY, AND MOSTLY HIGHWAY MILES BY MY WIFE. SO I PUT FOUR NEW TIRES AND HAD AN ALIGNMENT. *TR

VEHICLE CAUSING EXCESSIVE TREAD WEAR ON INSIDE OF TIRE, EXISTS ON MULTIPLE SETS OF TIRES. TREAD WORN COMPLETELY THROUGH, EXPOSING INNER LAYERS OF TIRE. IF NOT NOTICED WHEN IT WAS THERE WAS A RISK OF COMPLETE FAILURE FOR ALL 4 TIRES. MANUFACTURER REFUSED TO MAKE ADJUSTMENTS TO VEHICLE AFTER FIRST 4 TIRES FAILED (30K MILES), CONTINUES TO REFUSE SERVICE AFTER NEXT 4 SHOWING SAME PROBLEM (15K MILES). *TR

DT: CONTACT STATED VEHICLE CAME OFF OF THE ASSEMBLY LINE MISALIGNED. SHE HAD TO REPLACE ONE TIRE AT HER EXPENSE. THE FIRST TIRE TO BLOW OUT WAS THE REAR DRIVER'S SIDE TIRE ON 6-11-05 WHILE DRIVING 20 MPH, GOING UPHILL. THE SECOND TIME TIRE BLEW OUT WHILE DRIVING ON THE HIGHWAY AT 65 MPH. SHE SAID THE CAR FELT AS IF IT WAS FLOATING. CONSUMER TOOK VEHICLE TO THE GARAGE AND THEY TOLD HER THE CAR CAME OFF OF THE ASSEMBLY LINE MISALIGNED. THEY REPLACED ANOTHER TIRE AT THEIR EXPENSE. THE DEALERSHIP TOLD CONSUMER THEY WOULD REIMBURSE HER FOR THE FIRST TIRE. THE MANUFACTURER OFFERED HER AN EXTENDED WARRANTY. SHE IS STILL WAS CONCERNED WITH SAFETY. THEY TOLD HER THEY MAY HAVE TO REPLACE THE OTHER TWO TIRES AT THE DEALERSHIP'S EXPENSE. ALSO ON 6-6-05 THE CHECK ENGINE LIGHT KEPT COMING ON. THE DEALERSHIP REPLACED VALVE SPRINGS, PER BULLETIN. THE FRONT AXLE SEALS AND FRONT SHOCKS WERE DEFECTIVE, AND THEY REPLACED THE FRONT AND REAR SHOCKS. THIS SERVICE WAS PERFORMED ON 6-23 AND 6-24-05. ON 6-29-05 THE CHECK ENGINE LIGHT CAME BACK ON. SHE SAYS THE CAR FELT LIKE IT WAS FLOATING. SHE TOOK IT BACK IN 7-7-05 AND THEY HAD TO REPLACE A BRACKET FOR THE SQUEALING BELT. ON 7-13-05 SHE TOOK IT FOR A SIX MILE ROUND TRIP AND THE CHECK ENGINE LIGHT CAME ON AND THE TRUCK SMELLED LIKE IT WAS BURNING. SHE TOOK IT BACK ON 7-14-05. THEY SAID THEY DID NOT KNOW WHAT WAS WRONG, AND THEY WOULD HAVE TO CONSULT WITH THE GM ENGINEERS. *AK