Use your horn or remote locking device only when necessary, because the noise they produce can be a nuisance. Excessive honking could result in a fine.
Transport Canada requires all new vehicles sold in Canada to have a working horn. However, in accordance with the Highway Safety Code, horns should be used only when necessary.
You should avoid honking to express your impatience during a traffic jam, and not just because it is rude.
A peace officer could give you a fine of up to $281 if you honk your horn for no good reason.
Remote keyless locking systems make noises that are generally less annoying than the sound of a horn.
However, you should restrict their use, to avoid annoying neighbours or startling pedestrians and cyclists.
It is usually possible to deactivate the sound warning device. Check your vehicle owner's manual or contact your vehicle dealership to find out how to do so.
You can always reactivate this function if you need to.