2014 Mazda MAZDA6 brakes problems

Tl* the contact owned a 2014 mazda 6. While driving approximately 35 MPH in the rain, another vehicle attempted to pass the contact's vehicle. The contact depressed the brake pedal to avoid crashing into the other vehicle, but the brakes failed to respond. As a result, the contact's vehicle crashed into a tree. The air bags deployed. There were no warning indicators illuminated. The contact sustained injuries that required medical attention. A police report was filed. The vehicle was not taken to a dealer.

While driving on the highway with cruise control on, my car atomatically slammed on the brakes and slowed down rapidly. A short time later, the forward obstruction warning indicator came on and said an inspection was needed. Mazda dealership said "never heard of that" despite similar public comments on user forums. Dealer will not cover full cost of the repair becuase care it out of warranty. I believe this is a serious safety issue that should not fall under normal warranty considerations.