Active Noise Cancellation Description and Operation: Notes

The entertainment system on this vehicle may have several different configurations. To determine the specific configuration of the vehicle, please see the Service Parts ID Label, and refer to RPO Code List (Buick) .

The Active Noise Cancellation system is a method used to reduce the perception of certain undesirable sounds generated by the engine. The active noise cancellation system analyzes the noise signal and outputs a cancellation signal audio tone to moderate the engine noise and make the vehicle cabin seem quieter and without vibration