GM Service Manual Online
For 1990-2009 cars only

The vehicle has an analog clock and a digital radio clock. To use the digital radio clock and the analog clock, change the setting to enable or disable the radio clock display.

Enabling/Disabling the Digital Radio Clock

For Radios with a Single CD or a Single CD and DVD Player

Turn the radio clock display on or off by following these steps:

  1. Press the (clock) button until the clock and date setting menus appear.
  2. Press the pushbutton located under the forward arrow label until the menu for default clock and date settings appear.
  3. Press the pushbutton located under the currently displayed status of either ON or OFF. The ON display indicates the radio clock display is disabled and the OFF display indicates the radio clock display is enabled. Press this pushbutton to toggle the radio clock display on or off.
  4. If the radio clock display is turned on, the screen displays Radio Clock ON for 10 seconds, then returns to the original clock display menu.

    If the radio clock display is turned off, the screen displays Radio Clock OFF for 10 seconds. The menus for clock and date settings are removed, and ON displays as a current status indicating that the clock display can be turned on, if desired.

The radio clock and analog clock are not synchronized. Use the procedure below to synchronize both clocks.

For a Radio with a Six-Disc CD Player

Turn the radio clock display on or off by following these steps:

  1. Press the MENU button until the (clock) label display appears.
  2. Press the pushbutton located under the label until the clock and date settings appear.
  3. Press the pushbutton located under the forward arrow label until the menu for default clock and date settings appear.
  4. Press the pushbutton located under the currently displayed status of either ON or OFF. The ON display indicates the radio clock display is disabled and the OFF display indicates the radio clock display is enabled. Press this pushbutton to toggle the radio clock display on or off.
  5. If the radio clock display is turned on, the screen displays Radio Clock ON for 10 seconds, then returns to the original clock display menu.

    If the radio clock display is turned off, the screen displays Radio Clock OFF for 10 seconds. The menus for clock and date settings are removed, and ON displays as a current status indicating that the clock display can be turned on, if desired.

Setting the Time and Date

For Radios with a Single CD or a Single CD and DVD Player

This type of radio has a (clock) button for setting the time and date. To set the time and date, do the following:

  1. Press the button and HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year) displays.
  2. Press the pushbutton located under any one of the labels to change it. Every time the pushbutton is pressed again, the time or the date if selected, increases by one.
  3. • Another way to increase the time or date, is to press the SEEK arrow or the FWD (forward) button.
    • To decrease the time or date, press the SEEK arrow or the REV (reverse) button. The (tune) knob, located on the upper right side of the radio faceplate, can also be used to adjust the selected setting.

For a Radio with a Six-Disc CD Player

This type of radio has a MENU button for setting the time and date. To set the time and date, do the following:

  1. Press the MENU button until the (clock) label option is displayed.
  2. Press the pushbutton located under the label and the HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year) displays.
  3. Press the pushbutton located under any one of the labels to change it. Every time the pushbutton is pressed again, the time or the date if selected, increases by one.
  4. • Another way to increase the time or date, is to press the SEEK arrow or the FWD (forward) button.
    • To decrease the time or date, press the SEEK arrow or the REV (reverse) button. The (tune) knob, located on the upper right side of the radio faceplate, can also be used to adjust the selected setting.

Changing the Time and Date Default Setting

For Radios with a Single CD or a Single CD and DVD Player

To change the time and date default setting, do the following:

  1. Change the time default setting from 12 hour to 24 hour or the date default setting from month/day/year to day/month/year, by pressing the (clock) button.
  2. Once the clock and date settings display along with the forward arrow, press the pushbutton located under the forward arrow until the time 12H and 24H, and the date MM/DD/YYYY (month, day, and year) and DD/MM/YYYY (day, month, and year) displays.
  3. Press the pushbutton located under the desired option, then press the button again to apply the selected default, or let the screen time out.

For a Radio with a Six-Disc CD Player

To change the time and date default setting, do the following:

  1. Change the time default setting from 12 hour to 24 hour or the date default setting from month/day/year to day/month/year, by pressing the MENU button.
  2. Once the (clock) label displays, press the pushbutton located under that label until the time and date settings display along with a forward arrow.
  3. Press the pushbutton located under the forward arrow until the time 12H and 24H, and the date MM/DD/YYYY (month, day, and year) and DD/MM/YYYY (day, month, and year) displays.
  4. Press the pushbutton located under the desired option, then press the MENU button again to apply the selected default, or let the screen time out.