My car dashboards (and most cars as far as I know) are actually a good example of avoiding alarm fatigue. Red lights mean that the sensors have detected a stat

My car dashboards (and most cars as far as I know) are actually a good example of avoiding alarm fatigue. Red lights mean that the sensors have detected a state that may damage the car or put you in danger. You should stop immediately. Examples: low oil pressure, overheat, emergency brake still on, low brake fluid. You can safely tell a new driver that if they are driving and they see a red light on the dash it means stop right now. Yellow means that something is operating outside of nominal ranges and you should try and fix it soon. Examples: low tire pressure, low washer fluid, check engine light.