NHTSA Complaint #11663588 — 2017 CADILLAC ATS

1. The transmission shudders at high speeds and at low speeds it either hesitates to shift gears or it lurches forward causing a rough shifting of gears. 2. I feel as though when I am braking and my car lurches forward, sometimes I have to brake even harder just to get the car to stop in time. This has caused me to almost hit pedestrians and/or other car. At high speeds, when the transmission shudders, I feel as though I have to slow down in order to stop the aggressive shaking, making others driving behind me have to slow down. 3. A former family mechanic has tried to resolve the transmission issue for me and he was unsuccessful in doing so. I have not taken it to a dealer or a big name mechanic. 4. The vehicle has not been inspected by insurance, police or the manufacturer. Only a family mechanic. 5. As far as I know, there was no prior indicating symptoms of the issue as I bought the car how it currently is. I was told upon purchase that the transmission has a shudder at high speeds and at hesitation of shifting gears at low speeds