GM Service Manual Online
For 1990-2009 cars only

Accessing the DIC Main Menu (Base Audio System)

There are two different procedures for accessing the DIC main menu depending upon whether or not your vehicle has the optional Navigation system.

To access the main menu of the DIC, do one of the following:

    • Using the Base audio system, press the TUNE/SEL knob once. Turn the knob clockwise or counterclockwise to scroll through the menu items.
    • Refer to the CTS Entertainment and Navigation System Supplement supplied with your vehicle for more information on the accessing DIC main menu and descriptions of the menu items for the Navigation system.

The DIC main menu for the Base audio system consists of the following menu items:

    •  BASS - MID - TREBLE
    •  EQ
    • DSP
    • AVC
    • H/A
    • AUTO STORE
    • PTY
    • TA
    • RDS MSG
    • AF
    • SEEK LOCAL/DISTANT
    • ENGLISH UNITS/METRIC UNITS
    • TCS
    • SET CLOCK
    • SETUP

DIC Main Menu Item Descriptions (Base Audio System)

The following descriptions are for the Base audio system. For information pertaining to the Navigation audio system, see "Navigation Audio System" in the Index of the CTS Entertainment and Navigation System Supplement supplied with your vehicle.

BASS - MID (Midrange) - TREBLE: This menu item allows you to adjust the levels for the bass, midrange, treble, balance, and fader features of the audio system. For more information, see Audio System(s) .

EQ (Equalizer): This menu item allows you to choose among five preset equalizations for the audio system. See "Equalizer" under Audio System(s) for more information.

DSP (Digital Signal Processing): This menu item allows you to select the DSP type that you want on the audio system. You may choose Normal, Talk, Spacious, Rear Seat or Driver Seat. Press the TUNE/SEL knob to scroll through these choices. Once the desired choice is displayed, turn the knob to set your DSP choice and continue scrolling through the main menu. See "DSP" under Audio System(s) for more information.

AVC (Automatic Volume Compensation): This menu item allows you to turn the AVC feature on and off. Press the TUNE/SEL knob once to turn AVC on and off. When AVC is on, an X will be in the box next to AVC on the menu. The X disappears when AVC is off. See "AVC" under Audio System(s) for more information.

H/A (Home/Away Preset Stations): This menu item allows you to switch back and forth between your home and away preset radio stations. Press the TUNE/SEL knob to switch between home and away. See "Home and Away Preset Stations" under Audio System(s) for more information.

AUTOSTORE: This menu item allows you to automatically store radio stations with the strongest signals as presets. See Audio System(s) for more information.

PTY (Program-Type Mode): This menu item allows you to select radio stations based on preset program-types. To turn the PTY feature on, press the TUNE/SEL knob once. When PTY is on, an X will be in the box next to PTY on the menu. The X disappears when PTY is off. See Audio System(s) for more information.

TA (Traffic Announcement): This menu item allows you to turn the TA feature on and off. To turn the TA feature on, press the TUNE/SEL knob once. When TA is on, an X will be in the box next to TA on the menu. The X disappears when TA is off. See "RDS Messages" under Audio System(s) for more information.

RDS (Radio Data System) MSG (Message): This menu item allows you to view an RDS radio station message broadcast by a radio station. To view the message, press the TUNE/SEL knob once. The message will appear on the screen. See "RDS Messages" under Audio System(s) for more information.

AF (Alternate Frequency): This menu item allows you to turn the AF feature on and off. To turn on AF, press the TUNE/SEL knob once. When AF is on, an X will be in the box next to AF on the menu. The X disappears when AF is off. See "Using RDS" under Audio System(s) for more information.

SEEK LOCAL/DISTANT: This feature instructs the audio system to seek only local radio stations with the strongest signal or to seek all radio stations with a strong signal in a large area. Use LOCAL when you are in urban areas where there are several strong radio station signals and you want to limit the number of stations to those with the strongest signals only. Use DISTANT when you are in rural areas where there are fewer radio station signals available. To switch between LOCAL and DISTANT, press the TUNE/SEL knob. Your choice will be set when you press BACK and return to the main menu.

English/Metric Units


Object Number: 829297  Size: A1

Use this menu item to adjust the measurement units.

You can choose between ENGLISH UNITS and METRIC UNITS. To switch between the two, press the TUNE/SEL knob. Once your choice is displayed, turn the knob to set your choice and continue scrolling through the main menu.

The measurement units that you choose will be reflected on all the vehicle system displays, not just the DIC information. For example, the climate control panel will display degrees Celsius if you choose METRIC UNITS.

TCS (Traction Control System): You can enable or disable the traction control system using this menu item. Press the TUNE/SEL knob to switch between on and off. You can also turn the traction control system off using the traction control button located in the glove box or by programming one of the steering wheel controls (1, 2, 3 or 4) or audio system softkeys to enable/disable the TCS. See Reconfigurable Steering Wheel Controls (SWC) and "Configurable Radio Display Keys" under Audio System(s) for more information. When you disable the traction control system, the Traction Suspended message will appear on the DIC and the traction control system warning light on the instrument panel cluster will come on. See DIC Warnings and Messages and Traction Control System (TCS) Warning Light for more information.

Set Clock


Object Number: 829292  Size: A1

Use this menu item to set the time on the vehicle's clocks.

See Setting the Clock for more information.

SETUP: When you select this menu item, the following submenu is available:

    • Personalization
    • Configure Display Keys
    • Configure SWC (Steering Wheel Control) Keys
    • Clear Tape Hours

You can use the items on this submenu to customize your vehicle's audio system and optional memory features. See DIC Vehicle Personalization , Reconfigurable Steering Wheel Controls (SWC) and Care of the Cassette Tape Player for more information on these menu items.