Highway 401 is one of the busiest stretches of road in North America, and a breakdown there puts a driver in a genuinely dangerous position within seconds.

The First 60 Seconds: Get Off the Travel Lane

If the truck can still move under its own power, get it onto the paved shoulder or an emergency pull-off area. Once stopped, engage hazard flashers immediately.

Triangles, Visibility, and Staying Out of the Lane

Warning triangles should be placed within 10 minutes of stopping — one about 3 meters behind the vehicle, and two more roughly 30 meters ahead and behind. Exit the cab on the side away from traffic and stay behind the guardrail while waiting.

What Information To Have Ready When You Call

Having your direction of travel, nearest exit number, which shoulder or lane you're on, unit and trailer type, and a plain description of the problem ready speeds everything up.