DSP (Digital Signal Processing) Settings
For vehicles with DSP, it is used to provide a choice of different listening experiences.
The DSP settings for the radio with CD are:
• normal - Select this setting to adjust the audio for stereo mode. This provides the best sound quality for the driver seat first, with the front passenger second.
• hk surround - Select to enable hk surround. This produces a true 6.1 matrix surround from any two channel digital source.
This feature is not available in AM/FM radio mode.
The DSP settings for the radio with CD/DVD and MEM are:
• 2.0 normal - Select this setting to adjust the audio for stereo mode. This provides the best sound quality for the driver seat first, with the front passenger second.
• hk surround - Select to enable hk surround. This produces a true 6.1 matrix surround from any two channel digital source.
This feature is not available in AM/FM radio mode.
To adjust the DSP settings:
1. Press the TONE button.
2. Select DSP.
3. Select the setting.
Press the 
BACK button to go
back to the Tone Settings menu.
See also:
Radio Reception
You may experience frequency interference and
static during normal radio reception if items
such as cellphone chargers, vehicle convenience
accessories, and external electronic devices
are plugged ...
Reprogramming Universal Home
Remote Buttons
Any of the three buttons can be reprogrammed by
repeating the instructions. ...
Reporting Safety Defects to General Motors
In addition to notifying NHTSA
(or Transport Canada) in a situation
like this, please notify General
Motors.
Call 1-800-521-7300, or write:
Buick Customer Assistance Center
P.O. Box 33136
...