You’re driving on a motorway and have to slow down quickly due to a hazard ahead. How can you warn drivers behind of the hazard?

Explanation: Using your hazard warning lights, as well as your brake lights, will give following traffic an extra warning of the problem ahead. Only use them for long enough for your warning to be seen.

Category: Motorway rules

References: The Official DVSA Guide to Driving: Section 11, Highway Code: Rule 116