The what3words app divides the world into 3-metre squares and gives you a unique combination of three words, wherever you are.
We’ll ask you to use what3words if you’ve broken down so we can find you easily and help you on your way.
The words are easy to say and share, for example – rest.easy.now – and they're just as accurate as GPS coordinates.
Once you've downloaded the app, you don't even need mobile data or Wi-Fi to use it!