The Cadillac CTS utilizes a system that pumps the vehicle’s engine and exhaust sounds into the vehicle using its sound system.
Called Engine Sound Enhancement (ESE), the system amplifies the vehicle’s engine and exhaust sounds through the audio system.
Meanwhile 2.0L turbo models feature active noise cancellation, which uses sound waves to cancel unwanted cabin noise. Models equipped with the available Bose audio system also feature engine sound enhancement, which amplifies the native sounds of the 2.0L turbo engine – and can be disabled based on the driver’s preference.
"its" is a possessive pronoun in this context. Sorry, couldn't help it, please don't hate me.