2014 Cadillac CTS: grinding or squealing brakes

Filed Nov 14, 2023 · Transmission · 84,000 miles · SC

The contact owns a 2014 Cadillac CTS. The contact stated while driving at various speeds, there was a grinding sound coming from rear end of the vehicle. The vehicle was taken to the local service center who discovered metal shavings inside in the rear differential fluid and informed the contact that the rear differential needed to be replaced. The vehicle was not yet repaired. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 84,000.

Filed Oct 27, 2023 · Transmission · NY

The gears inside the rear-differential of a 2014 CTS Luxury 3.6 liter Cadillac, with 48,000 miles, failed to the point where the whole differential had to be replaced. This defect is extremely dangerous to the owner of the vehicle, as well as others on the road. If the differential fails to the point where the tires lock up, the driver can lose control of the car. There were no warning messages relating to the problem and the problem did not come on gradually. There was a sudden loud grinding noise that came from the rear of the car, while driving, and the car was immediately taken to a Cadillac dealership for inspection. The dealership mechanic/technician determined that the rear differential completely failed and needed to be replaced. (The oil was drained from the differential and there were metal shavings inside the oil.) Upon research on the internet, it was determined that this rear-differential defect is an extensive problem, as other 2014 Cadillac CTS owners are experiencing a similar problem. Cadillac has recalled the 2014 CTS-V for this rear differential defect but has not acknowledged the same problem with the 2014 CTS 3.6 liter (it appears to be the same product/part design.)

Filed Jul 6, 2023 · Transmission · 50,000 miles · PA

The contact owns a 2014 Cadillac CTS. The contact stated that while driving at various speeds, an abnormally loud grinding sound was coming from the rear end of the vehicle. The vehicle was initially taken to an independent mechanic and the contact was informed of a fault with the rear differential. The mechanic referred the contact to the dealer for assistance. Once at the dealer, it was confirmed that the rear differential had experienced internal grinding and needed to be replaced. The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 50,000.

Filed Jan 17, 2023 · Transmission · 78,000 miles · AL

The contact owns a 2014 Cadillac CTS. The contact stated while driving at approximately 50 MPH, a loud grinding sound came from the rear of the vehicle. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed that the rear tires needed to be replaced. The contact had both rear tires replaced; however, the loud grinding noise recurred and was also heard a sound when starting the vehicle, shifting into drive(D) and slowly accelerating. The contact took the vehicle back to the same dealer who determined that the rear differential needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 78,000.

Filed Jan 8, 2023 · Transmission · VA

Rear Differential is failing, making a loud grinding, howling, screeching sound. Cadillac has already recalled rear diff on same year CTS-V (some models), but not for this or other CTS models, but finding replacement parts is almost impossible because a LOT of people are having the exact same failure.

Filed Nov 11, 2022 · Suspension, Transmission · FL

Rear Carrier Assembly is making grinding noise. Mechanic says that driving car could be life threatening. GM and Cadillac dealership has no parts. So car is useless. The car has 56,000 miles. There should be a recall and remedy for this Model, 2014 Cadillac 3.6L CTS. Especially when the V version of this car already has a recall. GM should be held accountable for this design flaw.

Filed Oct 19, 2022 · Transmission · TX

• Rear Differential is malfunctioning and is making a loud roaring,grinding noise. Is available for inspection. • Safety concern is no warning lamps notify you of malfunction and if differential goes out while driving wheels can lock up and increase the chance of a crash, And is a danger to passengers as well. • Called Dealer and was told part was discontinued probably because they know it is a bad part. Was told to rebuild or find a used part from junkyard. 2 independent service centers confirmed differential is malfunctioning. • No warning lamps to notify you , loud roaring,grinding noise can be heard .

Filed Aug 11, 2021 · Suspension, Wheels · PA

Our mechanic told us that the differential is making a grinding sound and he add differential fluid, but said the problem would only get worse. The car only has 62k miles on it and it is VERY EXPENSIVE to have the differential replace/repaired. I feel that this is a defect of the car and should be recalled by Cadillac to have the differential replaced. For the differential to go bad at 60k miles is unacceptable and is terrible reliability.

Filed May 28, 2021 · Transmission · 70,000 miles · ME

The contact owns a 2014 Cadillac CTS. The contact stated that the rear differential was making a loud grinding sound. The contact stated there was no warning light illuminated. The vehicle was diagnosed and the contact was informed that the rear differential needed to be replaced. The manufacturer was not informed of the failure. The failure mileage was approximately 70,000.

Filed Mar 22, 2021 · Driver assistance, Transmission · 95,000 miles · NY

2014 cadillac cts awd. Vehicle started hesitating while turning. Which turned into a whine and then grinding from the rear differential. Noise starts at 30 MPH and increases as speed increases. Have seen many cases of cadillac rear differential failing. Issue verified by the dealership february 2021. Now gm has no replacement units or repair parts for this differential. Gm part 84110751

Filed Dec 16, 2019 · Transmission · 90,000 miles · MI

The rear differential in my vehicle had to be replaced. Two of the main bearings failed. We noticed a grinding noise from the back as we drove. In august of 2019, I took it to my regular mechanic and he rode in the vehicle with me. He heard and felt the grinding. He recommended that I take it to a reputable transmission mechanic. I took it immediately to bay area transmissions. My vehicle was on the brink of a catastophic failure according to the transmission mechanic. He took me for the test drive and upon return, immediately put it up on the rack. Removed the plug and showed me the black fluid and metal shavings on the plug. He said that the pinnion and rar bearings were shot and that the whole unit needed to be replaced because the parts for this are non-existant. He found a refurbished unit and replaced it at the cost of $1800.00. I had called our local cadillac dealer service dept. They quoted me a new one for $2600.00 but, didn't have one in stock and couldn't tell me when or if they could get one. The cars drivetrain warranty was expired as we had 90000 miles on our vehicle. We purchased it in october 2018 with 68000 miles on it. We started noticing a noise from the rear back in june of 2019. There were approx. 80000 miles on it at that time. I wrote cadillac a letter and sent them a copy of the bill asking for help on this as I felt that this failure should not happen with a well maintained, luxury vehicle such as cadillac. They returned a call to me saying there was nothing more that they could do. I told them that this failure could have resulted in a major accident and loss of life. They don't seem to concerned. I informed them that I was going to contact the federal safety agency. I'm writing because I've read that this type of failure happens in these vehicles more often than gm would like to admit.