THE ACCIDENT OCCURRED AS A RESULT OF EVASIVE ACTION TO AVOID STRIKING AN ANIMAL (BELIEVED TO BE A LARGE COYOTE) THAT SUDDENLY APPEARED FROM THE LEFT OF US97N NORTH OF KLAMATH FALLS, OREGON, A TWO LANE ROADWAY. THIS ACTION CAUSED THE RIGHT FRONT WHEEL TO TRAVEL TO THE ROAD SHOULDER. THE SHOULDER WAS COVERED WITH AN ACCUMULATION OF CINDER MATERIAL USED BY THE STATE TO PROVIDE TRACTION ON ICE AND SNOW. IT WAS BUILT UP DUE TO THE ACTION OF SNOWPLOWS. (THE ROAD WAS CLEAN AND DRY AT THE TIME OF THE ACCIDENT). THE WHEEL SANK INTO THE ACCUMULATED CINDERS CAUSING THE VEHICLE TO ENTER A SPIN AND SUBSEQUENTLY TO ROLL DOWN AN EMBANKMENT. NONE OF THE FRONT OR SIDE AIR BAGS DEPLOYED. GM'S CADILLAC DIVISION WAS MADE AWARE OF THIS FACT AND CONDUCTING AN INVESTIGATION OF THEIR OWN. THEY SINCE ADVISED THAT THEY WERE UNABLE TO DETERMINE A CAUSE FOR THE FAILURE. AIR BAG DEPLOYMENT WOULD NOT HAVE PREVENTED THE INCIDENT BUT MAY HAVE LESSENED THE EXTENT OF THE INJURIES SUFFERED BY THE DRIVER AND FRONT SEAT PASSENGER. POST ACCIDENT PHOTOGRAPHS, RESCUE AGENCY REPORTS, POLICE REPORTS AND A READOUT OF THE VEHICLE'S "BLACK BOX" COMPUTER EQUIPMENT ARE AVAILABLE ON REQUEST. INTERESTINGLY ENOUGH, AN E-MAIL DIAGNOSTICS REPORT FROM THE VEHICLE'S ON-STAR SYSTEM DATED JUNE 22, 2010 WAS RECEIVED ALMOST FOUR MONTHS AFTER THE ACCIDENT STATING "NO ISSUES FOUND" WITH THE AIR BAG SYSTEM BUT THAT THE ON-STAR SYSTEM, WHICH ALSO FAILED TO FUNCTION AT THE TIME OF THE ACCIDENT, REQUIRED ACTION. *TR