When overtaking a truck on the highway, you should be most mindful of space, visibility, and speed management to avoid blind spots and sudden conflicts with such a large, slow‑to‑react vehicle. Trucks need more distance to brake and have big blind areas along their sides and directly behind, so planning and patience matter more than raw speed.

Key things to watch

  • Leave extra space in front and behind the truck; do not follow closely before starting the overtake because you will not see the road ahead and have less time to react.
  • Always overtake on the left on multi‑lane roads (in countries where that is the normal passing side), where the truck driver’s visibility is better and blind spots are smaller.
  • Check mirrors and blind spots carefully before pulling out; make sure no one behind you is already starting to overtake the truck.
  • Commit to the maneuver: accelerate decisively, avoid lingering alongside the truck, and keep a steady speed so the driver can predict your movement.
  • While parallel to the truck, keep a safe lateral gap in case of wind buffeting, road debris, or the truck making a gentle drift or lane change.
  • Do not cut back in too early; only return to the lane when you can see the truck’s full front in your mirror, which indicates you have left enough stopping distance.
  • Avoid overtaking near junctions, sharp curves, hills, or when visibility is limited (rain, fog, night without good lighting), as judging speed and gaps becomes harder.
  • Be patient: if the gap in the oncoming lane or adjacent lane is not clearly safe, wait rather than forcing a risky pass just to get ahead of one truck.

Mini scenario: doing it right

Picture this: you are behind a slow truck on a straight highway section with good visibility and dry pavement. You drop back until you can fully see the truck’s mirrors and the road ahead, check your own mirrors, signal, then move out and accelerate smoothly, passing without hanging beside the trailer and coming back in only when the truck fills your rearview mirror with a good cushion of space.

Common mistakes to avoid

  • Sitting in the truck’s rear blind spot, especially at night or in rain, and then suddenly pulling out.
  • Trying to “squeeze in” ahead of the truck with minimal distance after overtaking, forcing it to brake hard.
  • Passing on a downgrade where the truck may gain speed unexpectedly, making your overtake longer and riskier.
  • Overtaking even though oncoming traffic is near and you have not accounted for the extra time needed to clear a long vehicle.

TL;DR: When overtaking a truck on the highway, stay out of its blind spots, leave more room than you think in front and behind, pass decisively on the correct side, and never cut back in early.

Information gathered from public forums or data available on the internet and portrayed here.