When it is safe, move your vehicle to the side of the road, out of traffic. If your vehicle cannot be driven, leave your hazard lights on or use cones, warning triangles, or flares, as appropriate.

When any vehicle or trailer is disabled, stalled, broken down, or in a collision, you should quickly and calmly do whatever is necessary to ensure the safety of yourself, your vehicle, and other motorists.

If your vehicle can be moved, move it as far off of the road as you can. If it’s safe to take a picture of the scene before doing so, it is a good idea to do that first, but if emergency personnel (or your own instincts) tell you that safety depends on moving your vehicle off the road, do so. This is especially important on busy and high-speed roads where it may be dangerous to leave your vehicle in a driving lane.

Turn on your vehicle’s hazard lights. When visibility is limited, your vehicles low-beam headlights must be on. If you can’t move from the road, place one type of emergency warning device (such as a flag, flare, or pylon) in front and behind your vehicle, if you have any. This is especially important in times of low visibility.

Turn on your vehicle’s emergency flashers/hazard warning signals.

During times when visibility is limited, your vehicle’s low-beam headlights must be turned on.

In a speed limit zone greater than 60 km/h, if you cannot move your commercial vehicle off the roadway, you are required to set out one type of emergency warning device approximately 30 metres (100 ft.) to both the front and rear of your vehicle during times when visibility is limited.

It is recommended to use emergency warning devices for all emergencies, whether they occur during the day or night, or on or off the road, to ensure everyone’s safety.