The Mazda cx-5 comes with Automatic Emergency Braking. As I was driving on the highway at about 50mph, I tried to accelerate. As I accellerated, I noticed white smoke in my rear view mirror. Then the car starts slowing down. Suddenly the check engine light turns on and then error messages pop up on the dash. The one that I distinctly remember read "smart brake system malfunction.
I brought to the Mazda service and the tech told me that the air cleaner housing box got loose and that was what causing the car to slow down.
I told him about the smart brake error messages and he said that he didn’t find anything wrong with it.
The NHTSA has a Technical Service Bulletin regarding the smart brake error:
Can the air intake affect the smart brake sensor? or is there something more to this?