Assuming you are talking about older vehicles that had ignition points, the acc mode would let you listen to the radio while parked with the engine off without burning up the points.
Press the ENGINE START/STOP button once without depressing the brake pedal
To play the radio in auxiliary mode with a push-button start vehicle, first, ensure the vehicle is in the "accessory" or "auxiliary" position by pressing the start button without pressing the brake pedal. This will power the electrical systems, including the radio. Next, switch the radio to auxiliary mode, usually by pressing the "Media" or "Aux" button, and then connect your external device via the auxiliary input. Once connected, you can play audio from your device through the car's speakers.
Push the tow mode button
Yes, there are current Chrysler models with push button start.
you push the button again
push the lock button then push the power button
push the DISPLAY button!!!!
How do you start and stop a motor only using one push button?
you press the button start
To set the clock: 1. Push the "SELECT" button and "RESET" button together for at least two seconds. 2. When the hour digits start flashing, push the "RESET" button to set the hour. 3. Push the "SELECT" button, and the minutes digits will start flashing. 4. Push the "RESET" button to set the minutes. 5. Push the "SELECT" button and then release it to start the clock.
push in the power button
If you are referring to push button start almost every manufacture sells cars with this feature.