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Cadillac Ct5 Transmission Problems

14 owner complaints filed with NHTSA across 3 model years.

Complaints by Year

Worst year: 2020. Best year: 2021.

Owner Reports

A representative sample of complaints filed with NHTSA.

Transmission · 2020 4

While slowing down vehicle felt as if it was put into park momentarily, which cause car to slide on ice. After reading the recall, I am certain that the transmission failed. Car was towed to Ray Skillman cheverolet on south post road in ...

Transmission · 2020 2

The contact owns a 2020 Cadillac CT5. The contact stated that while driving at various speeds, the vehicle shuddered and experienced hard shifts intermittently. There was no warning light illuminated. The contact stated that the failure ...

Transmission · 2023 2

The valve body in the ten speed transmission failed while driving. The transmission did a rough shift and a message popped up on the display saying that power has been reduced along with the check engine light illuminating. The transmiss...

Transmission · 2023 2

I purchased a 2023 Cadillac CT5 from a Cadillac dealership in Cleveland, Ohio on June 24th, 2025 with slightly under 18K miles. On July 30th, I took the car to a local Cadillac dealer due to on a few occasions, while driving down the hi...

Transmission · 2020 2

The contact's sister owns a 2020 Cadillac CT5. The contact stated that while his sister was driving at an undisclosed speed, the rear wheels locked up. The driver was able to pull over to the side of the road. The vehicle was towed to th...

Transmission · 2021 2

Service transmission message showed up on dash. Dealer stated after performance test found P17A5 code for shift control. The dealer stated that the gear shift assembly needed to be replaced and if not, that the car could get stuck in gea...

Transmission · 2020 1

While driving my 2020 Cadillac CT5 at highway speeds, the vehicle suffered a sudden and dangerous total loss of motive power. The transmission completely failed without warning, creating an immediate, severe safety hazard as I was forced...

Transmission · 2020 1

For no apparent reason my vehicle is shifting itself into Neutral while driving. The car will suddenly completely slow down to a stop and in order to restart the car, I have to put it in park. It doesn't matter what speed or the road con...

Transmission · 2021 1

The contact owns a 2021 Cadillac CT5. The contact stated that while driving approximately 42 MPH – 66 MPH, the vehicle was shaking abnormally. The contact stated that while driving at an undisclosed speed, the vehicle jerked and shudde...

Transmission · 2020 1

The contact owns a 2020 Cadillac CT5. The contact stated that while driving at various speeds, the transmission was slipping while shifting gear. Additionally, the contact stated that there was a delay while shifting gear. The check engi...

Transmission · 2020 1

Regarding NHTSA Campaign ID 25V148, GM recall N242480630. The recall was for a potential transmission control valve issue where some vehicles may be susceptible to excess wear over time, resulting in gradual loss of pressure within the v...

Transmission · 2023 1

At 22,000 miles, driving along at approximately 40mph, vehicle felt like it surged - check engine light went on and message of "limited acceleration - drive with care" appeared. Key cycled the car, CEL and message remained. Car would...

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