We're not talking about developing an entire language, we're talking about a button to let someone turn features in their car on and off. An icon can be used globally, just translate the owner's manual instead of making thousand of different cars where the only change is the language on the buttons.
What's the picture for "go" ? What's the picture for "dog" as opposed to a picture for collie?
There are one million words in the English language. Are you going to memorize them all?
Picture languages simply do not work.