2014 Cadillac ATS power train problems

“In August 2026, at approximately 99,639 miles, my 2014 Cadillac ATS was taken to an authorized Cadillac dealership for service. During the inspection, the dealership discovered and diagnosed a leaking right rear axle shaft seal. I was not aware of the leak beforehand and did not receive a warning light or message indicating the condition. The dealership’s written repair order states that the right rear axle shaft seal was leaking and that the right rear axle seal was replaced. The repair was completed at my expense. I have the dealership repair order and invoice documenting the diagnosis, mileage, parts replaced, and repair. After the repair, I researched this issue and found other NHTSA consumer complaints involving rear axle/differential seal leakage on 2014 Cadillac ATS vehicles. I also found GM manufacturer communications addressing rear axle leakage on certain Cadillac ATS vehicles. I am reporting this failure so NHTSA has a record of another rear axle seal leak involving a Cadillac ATS and can determine whether this condition may represent a broader defect or safety trend. I do not know the specific underlying cause of the seal failure and am not…”

“My 2014 Cadillac ATS experienced a transmission shift cable/linkage failure. After driving normally, I pulled into my garage and moved the shifter to Park. The physical shifter was in Park, but the instrument cluster continued to indicate Drive (D). The vehicle would not recognize Park, the shifter became stuck, and the vehicle would not restart because the transmission was still being detected as being in Drive. The vehicle was towed to an authorized Cadillac dealership for diagnosis. The dealership confirmed that the range selector lever cable had detached from the shift shaft. Their written diagnosis states that the plastic retainers securing the cable failed, causing the shifter to show the wrong drive mode. The dealer recommended replacement of the range selector lever cable. I later learned that this vehicle was previously subject to GM Safety Recall 14179 / NHTSA Recall 14V-338 concerning the automatic transmission shift cable. GM records show the recall was completed in 2014 through inspection; I was informed that no replacement part was installed at that time because none was required. I am reporting this because the vehicle has now experienced a shift…”

“I was driving the car and trying to put the car in park at the stop light. The car shifter moved, but the shifter wasn't going into any other gear. The shifter moves forward and back, but nothing happens. I almost got in an accident and my dad had to help me park the car. I saw this is a past recall issue and I called Cadillac and they stated I needed to tow my vehicle there and there are no open recalls, so it will be out of pocket. They can't even see my car until the 31st at the soonest. I could've been seriously injured or injured someone else.”

“After routine maintenance (oil change) at Cadillac of Knoxville on 5/7/2024, I was notified that my rear differential was leaking. After I arrived back home, upon further research, I found that this was a common problem for this make and model of car and that there was a recall for Cadillac ATS' manufactured between 2013-2016. After calling GM's customer service line, the representative expressed that my VIN did not register under the specific recall and therefore would not qualify for a replacement rear differential. This is a problem in which can total my vehicle, though no problems besides the leak have occurred as of my knowledge. There was no indication before the oil change on 5/7 of a leak, no warning lamps or other telling signs. If I had not brought my vehicle for its routine maintenance, I would not be aware of the situation.”

“My engine RPM would randomly lock to 4000 rpms while driving, i could rev the car or apply the brakes but it will sit their until it decides to respond. This has happened a few times and mostly down hill and flats. Difficult to replicate. Cooling system has been a plague at around 80k miles i've had to replace a clamp at the back near the water outlet flange which i was quoted $2000 for just the labor alone as the engine would need to be removed.And the water pump failed at around 82000 miles. Also plagued with P06DE "Engine Oil Pressure Control Circuit Stuck On" error code a few times now.”

“What are the cooling hoses that carry coolant from the engine to the radiator busted not once but twice. It has many electrical problems even when cleared with an OBD2 sensor they will still come on. The power steering is completely off and malfunctions.”