Use Your Headlights!
One of my pet peeves is drivers who do not have lights on during the day .... particularly when it is foggy, raining very hard, or there is a very dark overcast. On our last trip we saw many vehicles with no tail lights on. It was very dark out because of low, thick clouds and rain and the lack of lights is a recipe for an accidental meeting.
This reader raises an important question: when daytime running lights were mandated in Canada, why didn't some vehicle manufacturers turn on all the lights instead of just some of the lights? Many drivers assumed that when the headlights were on the tail lights were on also because this was the normal state of affairs at the time. The lack of tail lights left them dangerously unprotected.
Daytime running lamps were legislated to reduce head on collisions by making vehicles approaching each other more conspicuous. There was no need to have rear lamps on to accomplish this, so the federal standards did not mandate that they had to turn on with the daytime running lights. Some manufacturers chose to turn them on as part of the daytime running light system and some chose not to. It was up to the buyer to choose the system they wanted as part of their vehicle purchase.
Of course when weather conditions are poor, the lights on our vehicles help us see and be seen by other drivers. It is important to turn them all on when needed and maintain them so that they function properly. If the daytime running light system doesn't turn all lights on automatically, you must be alert to the need and do it yourself.