I had backed in to a parking space in a parking lot. To exit, I shifted the car into Drive, gently touched the accelerator (which should have accelerated the car to 2 MPH) and turned the steering wheel about 90° clockwise with my left hand to straighten the wheels. In doing so, the base of my left thumb inadvertently pushed the Set button on the cruise control, causing it to set to 15 MPH, its minimum setting, and the car to rapidly accelerate. I jammed on the breaks but wasnât able to stop in time to avoid colliding into the side of a passing car. Because my right knee was locked in my effort to stop my car, the force of the impact was transferred to my hip and, though nothing was broken, I ended up spending two days in the observation unit of my hospital followed by eight days in residential rehabilitation. At the time, I had no idea what had caused the car to suddenly accelerate, seemingly without any input and certainly without my intent. It wasnât until several months later that a similar acceleration event occurred, fortunately not resulting in an accident, and I was able to determine the cause. This problem is not the result of defective parts but of design. I believe the cruise Set button should not be located so close to the steering wheel rim and should not be raised as it is, but the safety issue could also be resolved in software by not allowing the cruise control to engage at very low speeds.