Final answer:
The function that cannot be performed with the steering wheel audio controls is turning off the radio; these controls usually allow for media selection, song choice, and radio station selection.
Step-by-step explanation:
The function among the ones listed that drivers cannot perform using the audio controls located on the steering wheel is turn off the radio. The audio controls on modern vehicles are designed to provide convenience while driving, enabling drivers to perform several tasks without taking their hands off the steering wheel. These tasks often include selecting media, choosing a song, and picking a radio station. The control features are typically limited to tasks related to media and volume adjustments, like changing tracks, stations, and adjusting the volume with a radio volume knob. Other vehicle functions, such as window control, activating cruise control button, or manipulating the gear shifter, do not fall under the purview of these audio controls. Similarly, turning the radio off is more commonly a feature found on the radio itself or the center console, not on the steering wheel audio controls.