“…The names of the symbols presented in this research are horn, battery, turn signal, trunk, fuel, high beam, fan, oil, hood, low beam, temperature, w/s wipe, w/s wash, w/s wash/wipe, parking lights, rear defrost, cigarette lighter, headlamp cleaner, hazard warning, w/s defrost, master lighting, unleaded fuel only, front fog lights, choke, and rear fog lights. Authors in [17] did not classify the symbols according to their function. The only criterion for the selection of those symbols was that they were ISO-approved symbols.…”