Car Will Not Accelerate problems of the 2014 Mazda MAZDA3

Tl-the contact owns a 2014 Mazda m3s. The contact stated that while driving at approximately 50 mph, the speedometer dropped down to zero and the gas pedal was depressed but the vehicle did not accelerate as all of the warning indicators illuminated on the dash panel. The failure recurred four times. The vehicle was taken to a dealer where it was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 6,700. Sg.