Thanks for the advice and comments. To comment on a few suggestions that the car was moving too fast, I did have my foot on the brake the entire time and was moving very slowly as my car approached the forward parked car. I have been using the active park assist almost daily for a month without incident. In this instance, I stopped the vehicle before contact was made, but then decided to let the system continue slowly since I had heard of no incidents of the active park assist misjudging distances. Unfortunately it did. At first I thought it might just be off by a fraction of an inch as my car touched the bumper of the car in front, so I let it move some more, which is what causes the damage. Also, the active park assist system will work on the left hand side of the car, you need to turn on the left turn signal and the computer searches the left side of the street. You will see the little radar symbol change on the LCD display to the left side. I've used it several times on my one-way street with success. Update from my original post. I dropped off the car at my Ford dealership and they said they would investigate. Unfortunately, they said there were no error codes and all of their diagnostics said the system was functioning normally. The service manager said he looked up the instructions for using Active Park Assist, and made note of how many times it said the driver is responsible for ensuring the car will not collide with other objects. Basically, if the system misjudges and the driver doesn't catch the error in time, it is the driver's fault. So, I have an estimate for $450 to replace the fender and repaint the area... which is not horrible. I have learned my lesson on trusting the parking system in the future.