ON 9/24/08 I WAS INVOLVED IN AN AUTO ACCIDENT WHERE MY 2007 CHEVROLET TRAILBLAZER'S AIRBAGS FAILED TO DEPLOY. MY VEHICLE IMPACTED ANOTHER WITH MY ENTIRE FRONT END AT APPROXIMATELY 45 MPH. MY TRAILBLAZER WAS TOTALED. NOT ONLY DID MY AIRBAGS FAIL TO DEPLOY, THE ONSTAR SYSTEM DID NOT AUTOMATICALLY GO OFF. I HAD TO HIT THE BUTTON TO SUMMON ASSISTANCE. WHEN WE ASKED THE DEALER ABOUT IT, THEIR RESPONSE WAS "SOMETIMES THEY GO OFF, SOMETIMES THEY DON'T" I SUSTAINED A BROKEN LEFT ARM, NUMEROUS BRUISES, A CUT ON MY ANKLE AND AN ANKLE SPRAIN. I ALSO INJURED MY BACK AND NECK WHICH IS REQUIRING ONGOING CARE. *TR