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BDifficulty 2/5

Because of an emergency you travel below the minimum speed on a motorway and risk being struck from behind. Which light warning must you use?

Correct answer

Hazard lights: all direction indicators flashing together.

Use all direction indicators together as hazard lights, under Article 49.3. A single-sided turn signal or fog light is not the warning. Because of the emergency and abnormally low speed, leave at the first exit if safe to continue; otherwise take safe immobilisation measures. Warning lights do not authorise continuing in an unsafe vehicle.

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  • Only front fog lights, even without reduced visibility.

  • Only the right turn signal, as though turning.

  • Hazard lights: all direction indicators flashing together.

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