My daughter was backing my car into the garage when the car started to roll forward, hitting my other car, I asked if she put it in drive and she told me no. I asked her to place the emergency brake on. I then pushed the car into the garage. I asked a mechanic to come look at the car, in my garage, he told me the axle had broke. I asked him if has ever seen this and he said it was very unusual. He also told me it looks as if has rusted in the spot that broke. I looked on the internet and noticed a recall on Honda accord axles rusting, do to not being rust proofed and the he salt in the Midwest region causing the axle to rust. The component was front axle. Hit another car Not sure if the problem has been reproduced The component has not been inspected by the following. (vehicle or component been inspected by the manufacturer, police, insurance representatives) It has been inspected by a mechanic. No warning lamps or messages.