Theory Hub UK Theory Test

Why would you flash your headlights to another road user?

Why this is the answer

You should only flash your headlights to warn others of your presence. Do not use them to • greet others • show impatience • give up your priority. Other road users could misunderstand your signal.

Why the other answers don't fit

A
To show that you're giving way to them — Giving way is shown by slowing and stopping, not by a flash.
B
To let them know they need to dip their headlights — A flash does not carry that message, and it may dazzle them further.
C
To show that they made a mistake — Pointing out mistakes with your lights is not what the signal is for.

Where this comes from

  • Driving: the essential skills — section 5
  • The Highway Code — rule 110

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.

More about our sources and licence

Asked in: Driving Instructor (ADI Part 1)

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