Our 2006 Lincoln Navigator (with 14,500 miles) that we just bought today was parked in our sloping driveway. My husband and I along with our two kids - 4 yr old son and 22 month old daughter just got into the truck to go somewhere and I just turned on the car, put my foot on the brake pedal and changed the gear from park to reverse. And the next thing I know, the truck was rolling down our sloping driveway and road in reverse and I just didn't know why that was happening because I had my foot on the brake. I just kept pressing on the brake pedal and nothing was happening. Since it was downhill, it just kept going really fast and even putting the auto shift back into park didn't slow it down until it swerved and rammed in reverse into a city fence which is what halted the vehicle. My entire family is completely shaken by this. We just called the police, called our insurance, etc. Truck has been removed by cutting the fence, etc and has been towed. Further internet search has revealed (on edmunds) 2006 Lincoln Navigator brake failure. My entire family could have been seriously injured in this incident.

- Fremont, CA, USA