2007 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO VEHICLE EMERGENCY BRAKE FAILURE. *SMD THE CONSUMER STATED THE VEHICLE SUDDENLY STOPPED OPERATING. HE TRIED TO THE STOP THE VEHICLE, BY APPLYING THE BRAKE, BUT TO KNOW AVAIL. AS A RESULT, HE COLLIDED WITH ANOTHER VEHICLE. ALSO, THE AIR BAGS FAILED TO DEPLOY. THE CONSUMER ATTACHED A RECALL NOTICE, REGARDING THE IGNITION SWITCH. *JB