DRIVING ON HIGHWAY, HIT DEER. FRONT AIRBAGS DEPLOYED. CAR SWERVED ONTO MEDIAN AND FRONT PASSENGER SIDE CRASHED INTO GUARDRAIL. SIDE AIRBAG DID NOT DEPLOY. UNCLEAR WHY SIDE AIRBAG DID NOT DEPLOY. FRONT PASSENGER HIT HEAD ON PASSENGER DOOR WINDOW AND SHATTERED WINDOW, SUSTAINED CONCUSSION.