Whisper mode is for relaxed driving and adverse weather conditions. This is the best mode for driving in slippery conditions. This mode decreases accelerator response at partial inputs. Steering tunes for comfort. When you release the accelerator pedal, your vehicle slowly decelerates allowing for a more comfortable ride. The interior sound turns off and the ambient lights and cluster graphics are set to blue with a graphic that starts to illuminate blue as you drive efficiently at consistent speeds.