How do you program the start button on BMW 745i?

To program the start button on a BMW 745i, first ensure you have the key fob inside the vehicle. Press the brake pedal, then press the start/stop button without pressing the gas pedal to turn on the electrical systems. If you want to program specific functions or features related to the start button, consult the vehicle's owner manual for detailed steps, as this can vary by model year and configuration. If necessary, use the iDrive system to access settings related to vehicle functions.