I was in an accident going about 35mph. I slammed into a vehicle that turned in front of me. His vehicle was totaled with all of his airbags deployed. My issue is NOT with my airbags. My issue is that the seatbelt pretensioner system (which is designed to prevent whiplash) the emergency braking system and the hazard lights ALL did not active during, and/or after the crash. My vehicle is equipped with the safety features and collision avoidance that consists of seatbelt pretension, auto hazard lights and auto braking in the event of or to prevent a collision. Ironically, a few months before my accident, the seatbelt compression system erroneously activated during a right hand turn in my neighborhood that I make multiple times a day. Volvo the manufacturer had been contacted and did a diagnostic on it.