Signal to warn others of your intention and to help other road users.
Remember that people could be using the road in a variety of ways.
Signal clearly and in good time.
Give only the signals shown in The Highway Code.
Help other road users to understand your intention by
A signal with the left indicator means ‘I am going to turn left’ or ‘I am going to stop on the left’.
Avoid using your left indicator before a left-hand junction if you intend to stop on the left just after the junction. A driver waiting at that junction might think you’re turning left and drive out into your path.
If you’re waiting to emerge and a vehicle seems to be indicating its intention to turn left, wait until you can see that it’s actually going to turn before you pull out. Otherwise, you might drive into its path.
There are very few situations in which you’ll need to use the horn.
Using the horn doesn’t
Sound it only if
Avoid using a long blast on the horn, as this can alarm pedestrians. If a pedestrian doesn’t react to a short signal on the horn, it could mean they’re deaf. If possible, avoid sounding the horn near animals; it may increase the danger because their reaction will be unpredictable.
Never use your horn to signal your unhappiness at another driver’s actions.
Don’t use it to attract the attention of someone at the side of the road, to signal your arrival to someone, or as a farewell.
Unless a moving vehicle poses a danger, it’s illegal to use your horn
This is an alternative to the horn and has the same meaning: to warn others that you’re there.
Don’t flash your headlights at anyone to indicate that they should go ahead or turn.
Before you act on the signal, make sure
Never assume it’s a signal to proceed.
Ask yourself
Take your time and watch for other road users who may think the signal was for them.
If you think a warning is necessary, flashing your headlights is usually better than using your horn. Be alert for such warnings from other drivers.
If a driver behind starts flashing their headlights and driving dangerously close
Move back to the left as soon as you can do so safely, without cutting in on vehicles that you’ve overtaken.