Why do truck drivers in movies honk their horns by pulling on a rope above their heads? Do trucks not have the button to activate the horn inside the steering wheel like normal cars?

Question

Why do truck drivers in movies honk their horns by pulling on a rope above their heads? Do trucks not have the button to activate the horn inside the steering wheel like normal cars?

In: 2818

Answer 1

As a kid riding in my parents’ car, used to mimic the cord pulling as we passed a truck to get the trucker to blow his horn.