When may you use hazard warning lights while you're driving?
- A Instead of sounding the horn in a built-up area between 11:30pm and 7am
- B On a motorway or unrestricted dual carriageway, to warn of a hazard ahead
- C On rural routes, after a sign warning of animals
- D On the approach to toucan crossings, where cyclists are waiting to cross
Why this is the answer
When there’s queuing traffic ahead and you have to slow down or even stop, briefly showing your hazard warning lights will help alert the traffic behind to the hazard.
Why the other answers don't fit
- A
- Instead of sounding the horn in a built-up area between 11:30pm and 7am — Hazard lights are not a silent horn.
- C
- On rural routes, after a sign warning of animals — A warning sign is not a reason to switch them on.
- D
- On the approach to toucan crossings, where cyclists are waiting to cross — You slow down and stop. You do not signal with hazard lights.
Where this comes from
- Driving: the essential skills — section 6
- The Highway Code — rule 116
Rule numbers link to The Highway Code on gov.uk.
Where this question comes from
The question, its options and the explanation are reproduced word for word from the DVSA revision question bank under licence. The licence requires them to appear unaltered, so we cannot reword them and neither can anyone else — that is why you will meet the same wording on other sites. Everything else on this page is written by Theory Hub: the explanation of why each wrong answer is wrong, the topic guide and the revision notes.
Asked in: Car
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