I WAS DRIVING WEST ON RIO RD. IN CHARLOTTESVILLE, VA, AT ROUGHLY 35 MPH. AT APPROXIMATELY 6:00 PM, A DEER EMERGED FROM THE PASSENGER SIDE OF THE VEHICLE. IT HAPPENED INSTANTANEOUSLY AND AVOIDING THE DEER WAS NOT AN OPTION. IMMEDIATELY AFTER STRIKING THE DEER AT THE FRONT RIGHT BUMPER (UNDERNEATH HEADLIGHT), THE SIDE AIRBAGS DEPLOYED IN MY 2011 CHEVY TAHOE. HOWEVER, THE AIRBAG THAT WAS SUPPOSE TO DEPLOY FROM THE DRIVERS SEAT (ON THE SIDE NEAR SEATBELT) DID NOT DEPLOY. ADDITIONALLY, THE FRONT TWO AIRBAGS (FROM STEERING WHEEL AND DASHBOARD) DID NOT DEPLOY AS WELL. MOREOVER, APPROXIMATELY THREE MONTHS BACK, ANOTHER FAMILY MEMBER ALSO HIT A DEER WITH THE SAME VEHICLE (2011 CHEVY TAHOE) AND AT THAT TIME NO AIRBAGS DEPLOYED. IN THIS INCIDENT THE VEHICLE WAS TRAVELING 70 MPH AND THE DEER STRUCK THE LEFT SIDE OF THE FRONT BUMPER AND NO AIRBAGS DEPLOYED. AT THE TIME, WE DIDN'T EVEN THINK ABOUT DEFECTIVE AIRBAGS, BUT NOW, WE ARE VERY, VERY CONCERNED THAT THERE'S A DEFECT. WE SIMPLY DO NOT KNOW WHAT TO DO. I HAVE CONTACTED CHEVROLET DIRECTLY AND THEY ASSURE ME SOMEONE WILL COME OUT AND LOOK AT THE VEHICLE THIS WEEK SOMETIME. I WOULD BE RELIEVED IF SOMEONE FROM THE NHTSA ALSO INVESTIGATES THESE TWO SCENARIOS. WHAT IS CHEVROLET'S RESPONSIBILITY TO ME AND MY FAMILY IN THESE TWO CASES? AND WHAT IS THE BEST COURSE OF ACTION? FURTHERMORE, I CAN ARRANGE FOR MY INSURANCE ADJUSTOR TO GATHER ANY DOCUMENTATION FROM THE FIRST INCIDENT (WHERE AIRBAGS DID NOT DEPLOY) SUCH AS PHOTOS, REPORTS