In AE we have directional signals which are actuated by a kind of "lever," but I've never heard it called that. When it's referred to at all, it's simply called "directional." "Put your directional on."
Well, If I knew what these devices do I'd know if they are exactly the same or different.
I only know they are mechanical parts of a car (that's for sure), but I don't know if they can be used interchangeably. My doubt is because "steering" and "direction" are usually synonyms in the automotive field, but I don't know about this particular case.
Someone with knowledge about mechanics should know the answer (It's not my case)
Where did you see this list? What is its purpose?
What country is it from, or in what variety of English is it written?
The names for car parts vary from country to country, and technical writing may contain terms that are unfamiliar to anyone outside that particular field.
Some very old cars were steered by levers, like this one. Some futuristic design concepts use levers for steering, like this one. However, the concept of a "steering lever" does not apply to any car produced for general sale in at least the past 75 or so years, or that will probably be produced for general sale in the near future. It is not a phrase that anyone uses.
Electric cars that do not have the usual type of transmission have a lever that selects forward (D, for Drive) or reverse (R) motion*. (This picture shows the lever in a Toyota Prius.) This could be called a "direction lever," though I've never heard it called that. Most people call it a "transmission lever" by analogy with gasoline- and diesel-powered cars.
*Or N for Neutral, or B for forward motion with added engine braking when the driver removes his or her foot from the accelerator pedal.