Every Car Sensor Ranked by How Deadly They Are When They Fail (O2, MAP, TPS, ADAS, AirBags)

Your car has over 100 sensors. Most just annoy you. But a few can kill you — and you'd never see it coming. In this video, we rank every critical car sensor from F tier to S tier based on one thing: how dangerous they are when they fail. From the O2 sensor that just wastes your money to the throttle sensor that literally accelerated cars without driver input and changed federal law forever. This is the video every driver needs to watch. Because one of these sensors might be failing right now — and your check engine light has been on for six months.