The contact owned a 2009 Mercedes-Benz GL 550.The contact stated that while driving at 15- 20 MPH, the driver in front of him was attempting to turn but swerved to the left in his lane, the brake pedal was applied but delayed to respond. The contact crashed into an unknown minivan. There were no warning lights illuminated. The air bags did not deploy. There was no reported fire. A police report was filed. The passenger occupant sustained injuries to her back and shoulder and medical attention was provided. The vehicle was towed to a tow lot. The contact received NHTSA Campaign Number: .2V315000 (Service Brakes, Hydraulic). after the failure was experienced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure but provided no additional assistance. The manufacturer requested that he preserve the vehicle. The vehicle was deemed a total loss. The failure mileage was approximately 200,000.