2015 Cadillac Cts

In about mid November 2021 a grinding noise became noticeable from the rear of my car and quickly became louder. From experience, I thought it was probably bearing failure. The car was parked at that time and has not been driven since. Today is 12/20/21, so the car has been out of service for one and a half months at this point. An ASE certified mechanic inspected the vehicle and found the rear differential to be defective, it was identified as the obvious source of the noise and had metal particles in the fluid. Doing research I found that rear differential failure was common in Cadillac CTS's and a GM safety recall N192279370 had been issued with the bad units being replaced at "no charge". The Cadillac designated model in question is the CTS-V with the 3.6l twin turbo V6 engine. My car is a 2015 CTS with a 4L turbo engine. I haven't found a recall issued on this model and I don't understand why it hasn't been done. I feel that a differential failure in my vehicle would be just as dangerous as that in the designated recall vehicle, it's basically the same car with a different engine. The vehicle was inspected by one mechanic only, but his findings reveal an obvious fault. A review of the incidents with the designated vehicle involved show that very serious safety problem exists which would threaten the driver and passengers if this vehicle was put back in service. I expect that GM must recognize that this safety fault affects a wider range of their vehicles and it has to be included in their recall. I ask NTSHA to intercede.

The rear differential started making a loud whining noise around 53,000 miles. It then turned into a grinding noise. I had it checked by a mechanic and he confirmed it was rear differential that needed replacing. He recommended not driving the vehicle since the differential could completely fail and cause an accident. Not having any mechanical experience, the noise was the only indication of a problem. No warning lights or sensor faults.

THE CUE SYSTEM IS CRACKING AND NON RESPONSIVE TO ANY TOUCH INPUT. I HAVE FOLLOWED THE INSTRUCTIONS FOR RESETTING THE SYSTEM BUT THIS DOES NOT CORRECT THE LACK OF RESPONSE NOR THE SCREEN CRACKING.. I CANNOT CONTROL THE NAVIGATION SYSTEM, RADIO, SPECIFIC CLIMATE SETTINGS, LANGUAGE OF THE INSTRUMENTATION (CURRENTLY STUCK IN FRENCH). THIS IS NOT COVERED NOW THAT OUT OF WARRANTY AND THE DEALERSHIP WANTS $2000.00+ TO REPLACE THE ENTIRE UNIT WITH AN IDENTICAL ONE THAT WILL DEVELOP THE SAME PROBLEM. THIS IS A DESIGN DEFECT AND THESE SHOULD ALL BE RECALLED. NY WIFE IS DISABLED AND RELIED ON THE NAVIGATION SYSTEM TO FIND DIRECTIONS TO LOCATIONS.

THERE WAS A VERY LOUD NOISE COMING FROM THE BACK OF MY VEHICLE WHILE DRIVING. MECHANIC SHOWED ME THE REAR DIFFERENTIAL FLUID HAS METAL SHAVINGS IN IT AND HE SAID THE CAR WAS DANGEROUS TO DRIVE. DEALERSHIP TOLD ME TO CALL GENERAL MOTORS AT (800) 222-1020 AND THEY TOLD ME TO TAKE IT TO THE DEALERSHIP AND GAVE ME FILE NUMBER 9-6712786810. IT IS AT IG BURTON, MILFORD, DE, NOW FOR DIAGNOSIS.

TL* THE CONTACT OWNS A 2015 CADILLAC CTS. THE CONTACT STATED THAT THE BRAKE DIFFERENTIAL EXPERIENCED A GRINDING AND RUBBING SOUND. THERE WAS NO WARNING LIGHT ILLUMINATED. THE CONTACT CALLED CAPITAL CADILLAC (2210 COBB PKWY SE, SMYRNA, GA 30080, (770) 884-7397) AND INFORMED THE DEALER OF THE FAILURE. THE CONTACT SCHEDULED AN APPOINTMENT WITH THE DEALER WHICH WAS STILL PENDING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 125,000.

TL* THE CONTACT OWNS A 2015 CADILLAC CTS. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V038000 (POWER TRAIN) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE VEHICLE WAS TAKEN TO BARKLEY BUICK GMC CADILLAC, INC, (3575 SKYLAND BLVD E, TUSCALOOSA, AL 35405), WHERE THE VEHICLE WAS REJECTED TO BE SERVICED DUE TO PARTS NOT BEING AVAILABLE FOR THE REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PART DISTRIBUTION DISCONNECT.