For a feature that was supposed to enhance road safety, DRL sure created a serious hazard. Since they come on with the engine, many drivers take off at night not realizing they did not turn the light switch on to have full lighting power in the front, and more importantly, any kind of tail lights. Or they keep driving past twilight thinking the lights are on all around -- same result. DAshlight should be a clue but seemingly that's not enough. Cars built since ca. 2010 have a daylight sensor that eliminates this problem, but there are still many older cars, and distracted drivers, on the roads.