GM Service Manual Online
For 1990-2009 cars only

DIC Switches

FUEL DOOR

Refer to Fuel Fill Door Description and Operation in Body Rear End.

INFO (SKIP)

Pressing the INFO (SKIP) button briefly will scroll down to the next driver information center (DIC) display parameter.

INFO RESET (NO)

Pressing the INFO RESET (NO) button briefly will acknowledge the currently displayed DIC message or reset the currently displayed DIC parameter. When a parameter that can not be reset is displayed, and the INFO RESET (NO) button is pressed, the DIC enters the recall mode. When in the recall mode, the DIC displays any messages that have been enabled during the last ignition cycle. If no messages have been enabled, the MONITORED SYSTEMS OK indicator is displayed.

TRIP RESET (YES)

Pressing the TRIP RESET (YES) button for approximately one second will reset the trip odometer.

TRUNK

Refer to Luggage Compartment Description and Operation in Body Rear End.

Indicators and Warning Messages

Refer to Indicator/Warning Message Description and Operation for further information on the indicators and warning messages.

Vehicle Information Display

The vehicle information display parameters are available to the driver during the RUN power mode. The driver navigates through the various parameters displayed in the DIC by briefly pressing the INFO (SKIP) button. Some parameters can be reset by pressing the INFO RESET (NO) button for approximately one second.

Some parameters require information from other modules via class 2 serial data messages. If the instrument cluster (IPC) has not received data for a parameter when the time has come to display the parameter, the IPC will blank the data on the DIC. If the IPC has determined that a class 2 communication failure with one of the modules exists when the time has come to display the parameter, the IPC will display dashes in the DIC.

The vehicle information display parameters are displayed in the following order:

  1. RANGE
  2. MPG AVG
  3. MPG INST
  4. FUEL USED
  5. AVG MPH
  6. TIMER
  7. BATTERY VOLTS
  8. OIL LIFE LEFT
  9. ENGLISH/METRIC reset
  10. FEATURE PROGRAMMING
  11. Blank display

RANGE

The fuel range is the estimated distance the vehicle can travel under the current fuel economy and fuel level conditions. The fuel range parameter is displayed in the DIC in one of the following formats:

    • RANGE XXX MILES
    • RANGE XXX km
    • LO RANGE

The XXX represents the calculated range value. The units of the display will correspond to the current IPC setting. The LO RANGE message is displayed when the range is calculated to be less than 65 km (40 miles). The fuel range parameter cannot be reset by the driver.

MPG AVG (L100km AVG)

The average fuel economy is the distance travelled divided by the fuel used since the parameter was last reset. The average fuel economy parameter is displayed in the DIC in one of the following formats:

    • XX.X MPG AVG
    • XX.X L/100km AVG

The XX.X represents the calculated average fuel economy value. The units of the display will correspond to the current IPC setting. Briefly pressing the INFO RESET (NO) button of the DIC will reset the average fuel economy parameter when the MPG AVG (L100km AVG) message is displayed in the DIC. The DIC will display 0.0 for the English mode and 99.9 for the metric mode when the average fuel economy parameter is reset.

MPG INST

The instantaneous fuel economy is distance travelled divided by the fuel used over a short period of time. The instantaneous fuel economy parameter is displayed in the DIC in one of the following formats:

    • XX MPG INST
    • XX L/100km INST

The XX represents the calculated instantaneous fuel economy value. The units of the display will correspond to the current IPC setting. The instantaneous fuel economy parameter cannot be reset by the driver. The DIC will display 0 for the English mode and 99 for the metric mode after the battery has been disconnected and then reconnected.

FUEL USED

The fuel used parameter is the amount of fuel that has been used since the parameter was last reset. The fuel used parameter is displayed in the DIC in one of the following formats:

    • XX.X GAL FUEL USED
    • XXX.X L FUEL USED

The XXX.X represents the calculated fuel used value. The units of the display will correspond to the current IPC setting. Briefly pressing the INFO RESET (NO) button of the DIC will reset the fuel used parameter when the FUEL USED message is displayed in the DIC. The DIC will display a range of 0.0 to 99.9 GAL in the English mode and a range of 0.0 to 999.9 L for the metric mode.

AVG MPH

The average miles per hour/kilometers per hour is the average vehicle speed since the last parameter reset. The average vehicle speed parameter is displayed in the DIC in one of the following formats:

    • XXX.X AVG MPH
    • XX.X AVG km/h

The XXX.X represents the calculated average vehicle speed value. The units of the display will correspond to the current IPC setting. Briefly pressing the INFO RESET (NO) button of the DIC will reset the average vehicle speed parameter when the AVG MPH message is displayed in the DIC.

TIMER

The timer is used to record elapsed time. The timer is displayed in the DIC in one of the following formats:

    • XX:XX:XX TIMER ON
    • XX:XX:XX TIMER OFF

The first XX represents hours elapsed. The second XX represents minutes elapsed. The third XX presents seconds elapsed. The maximum range of the timer is 99 hours, 59 minutes, and 59 seconds. After the maximum timer range is reached, the timer will reset to 00:00:00. The timer is turned ON or OFF by briefly pressing the INFO RESET (NO) button of the DIC. Pressing the INFO RESET (NO) button of the DIC for greater than one second will reset the timer when the timer is displayed on the DIC.

BATTERY VOLTS

The DIC displays the battery voltage in the following format: XX.X BATTERY VOLTS. The XX.X represents the monitored battery voltage. The battery voltage will range between 9.0 and 17.0 volts. The battery voltage parameter cannot be reset by the driver.

OIL LIFE LEFT

The engine oil life is calculated by the PCM. The PCM sends the information to the IPC via class 2 serial data messages. The engine oil life is displayed as XXX% OIL LIFE LEFT. The XXX represents the calculated engine oil life value. The value will range between 100% and 0%. When the engine oil life parameter reaches 0% the CHANGE ENGINE OIL message is displayed in the DIC. Once the oil has been changed, perform the engine oil monitor reset procedure. Refer to GM Oil Life System Resetting in Maintenance and lubrication.

ENGLISH/METRIC Reset

When the ENGLISH/METRIC reset message is displayed in the DIC, the IPC display units can be changed between English and metric by briefly pressing the INFO RESET (NO) button of the DIC.

FEATURE PROGRAMMING

Personalization features can be set for the vehicle or for the driver. Vehicle features do not change with each driver. Specific drivers are recognized by the vehicle through the keyless entry transmitters or the memory buttons.

For more information on personalization features for this vehicle, refer to Personalization Description and Operation in Personalization.