ON WEDNESDAY, FEBRUARY 7, I WAS DRIVING OUR 2007 TOYOTA SEQUOIA 4X4 ON A RURAL ROAD THAT HAD HAD FRESH SNOW THE NIGHT BEFORE, BUT NO SAND OR OTHER ROAD SALT WAS LAID DOWN. IT IS A CURVY AND HILLY ROAD. I HAD DRIVEN ON THE ROAD AN HOUR EARLIER WITH NO PROBLEMS. AT APPROXIMATELY 9AM, I ENCOUNTERED A PATCH OF ICE WHERE THERE WAS A CURVE IN THE ROAD AND MY SUV THAT HAD BRAND NEW MICHELIN TIRES ON COLLIDED WITH A TREE THAT WAS PART OF AN ISLAND IN THE MIDDLE OF THE ROAD. THE TREE WAS APPROXIMATELY 15 INCHES IN DIAMETER. THE COLLISION STRUCK DIRECTLY ON LEFT SIDE OF ENGINE BY HEADLIGHT'PLOWING IN APPROXIMATELY 9 INCHES AND DEFLATED FRONT TIRE. FRONT SUSPENSION WAS BROKEN AS IS HOOD ( SEE PICTURE). NO AIRBAGS DEPLOYED?? I WAS GOING APPROXIMATELY 25-30 MPH AT IMPACT. MY AIRBAG ON DRIVERS SIDE WAS RECALLED WITH TAKATA RECALL AND REPLACED , BUT I WONDER IF IT WAS INSTALLED PROPERLY OR WRONG? I SUFFERED A CONCUSSION AND OTHER TRAUMA TOYOTA DEALER BODY SHOP INDICATES THAT ALL SENSORS FOR AIRBAGS ON FRAME ONLY AND SINCE FRAME NOT HIT NO DEPLOYMENT??