When should you use your vehicle’s horn?

Explanation: Only use your horn to warn people of your presence when they may not have seen you. Don't use it to greet others, to show impatience, or to give or claim priority. Your horn mustn't be used between 11.30 pm and 7.00 am in a built-up area, or when your vehicle is stationary, unless another vehicle poses a danger.

Category: The Driver

References: The Official DVSA Guide to Driving Buses and Coaches: Section 1, The Official DVSA Guide to Driving Buses and Coaches: Section 4, The Official DVSA Guide to Driving Goods Vehicles: Section 1, The Official DVSA Guide to Driving Goods Vehicles: Section 4, Highway Code: Rule 112