Revision question · Leaving the vehicle

When may hazard warning lights be used while driving?

Revision material from the imported DVSA bank includes source-checked Lanekind learning corrections. These corrections are not newly issued official examination questions, and practice does not reproduce a live test paper.

Answer options

To thank a driver who has let you move back to the left after overtaking

As a warning to drivers that you're towing another vehicle

To show you want to go ahead when your position suggests otherwise

When on motorways or dual carriageways, to warn drivers behind of a hazard ahead

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When on motorways or dual carriageways, to warn drivers behind of a hazard aheadThis was the right answer

Use your hazard warning lights on a motorway or unrestricted dual carriageway to warn following drivers of an obstruction or hazard ahead. This will alert drivers who may not be able to see the hazard due to the size of your vehicle.

Reviewed reading for this question

Rule 116Highway Code rule · Use a brief hazard warning for an obstruction ahead on a motorway or unrestricted dual carriageway, not as thanks or an excuse for illegal parking.

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