The contact owns a 2018 Cadillac ATS. The contact stated while driving at undisclosed speeds, there was an abnormal growling sound coming from the vehicle. The contact looked underneath the vehicle, checked the tires, and checked the inside of the vehicle but found no failure. The contact continued to drive the vehicle and heard an abnormal winding or rubber sound. There were no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed and determined that the differential needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 84,000.

- Duluth, GA, USA

Unexpected shutter of vehicle, loss of power, unpredictable forward motion, erratic movement, delayed acceleration.

- Mooresville , IN, USA

2018 cadillac ats (most of the cadillac vehicles reported same issue). The transmission fluid is wrong fluid by manufacturer and driving at regular speed all of a sudden it starts shuddering and loses power or slows down at freeway speeds or any local roads. took the car for inspection to a local dealer and they said it is the transmission fluid which has to be upgraded and charged me hundreds of dollars. But how it is not recalled by GM since they sold the cars with wrong transmission fluid which is causing these issues?

- Westland, MI, USA

Transmission shudder noticed between 42 to 48 mph. It appears the transmission is shaking, it seems to be continually shifting between gears in the 42 to 48 mph range.

- South Range, WI, USA

High pressure fuel pump

- Doha, OH, USA