In the Fiat Grande Punto, typically, the steering wheel switches do not light up when you turn on the lights. Drivers generally become familiar with the layout of the switches through regular use. This familiarity allows them to operate the switches by touch and memory, even in low-light conditions. It's a common practice with many vehicle controls that aren't backlit.
And most of the cars have similar controls, lights on left side, wipers on right side, etc..
