The driver information center (DIC) displays XLR for 3 seconds when it first powers up. The DIC then returns to the last display status before no power condition.

There are 4 buttons on the DIC.

The DSPL MODE button is used in order to change the instrument cluster display based on the option available on the vehicle.

The Info Navigation button is used in order to navigate through the following driver information center (DIC) displays:

Average Fuel Economy

Average fuel economy is calculated using the equation: AFE = Distance/Fuel

The IPC receives a class 2 message from the engine control module (ECM) regarding fuel usage information. The value of this mode is retained during ignition OFF and can be changed between English units and metric units by pressing the English/Metric button on the DIC switch. Press and hold the Reset button on the DIC switch for three seconds in order to reset the AFE display.

Average Speed

Average speed is calculated using the equation: Average Speed = Distance/Ignition On

Ignition on time is measured from the time that the ignition is turned ON to the time when the ignition is turned OFF. The value of this mode is retained during ignition OFF. Press and hold the Reset button on the DIC switch for three seconds in order to reset the average speed display.

Battery Voltage

The IPC receives a class 2 message from the body control module (BCM) for battery voltage data. The gage on the IPC displays similar battery voltage values. When the battery voltage is within the normal operating range of 9.5-16 volts, the DIC displays NORMAL and the actual battery voltage. When the battery voltage is below the normal operating range, the DIC displays LOW and the actual battery voltage. When the battery voltage is greater than the normal operating range, the DIC displays HIGH and the actual battery voltage. The charging system indicator also illuminates when the battery voltage is outside the normal operating range.

Check Oil Level

This message indicates that a low oil level exists. To reset the CHECK OIL LEVEL message, the ECM must detect a temperature reduction of the engine coolant of at least 22°C (39°F) in between ignition cycles. The ECM uses the engine coolant temperature (ECT) sensor in order to detect the temperature of the engine coolant. Perform the following in order to reset the Check Oil Level message:

1. Verify the correct engine oil level after repairs.
2. Start the engine and allow to reach operating temperature.
3. Turn the engine OFF and allow the engine coolant temperature to achieve the desired coolant temperature reduction.

NOTE: confirmation of coolant temperature reduction can be accomplished with the use of a scan tool.

4. Turn the ignition ON (Run/Crank) for at least 1 second. Do not start the engine.
5. Turn the ignition OFF until the ECM de-energizes.
6. Start the engine.
7. Confirm the CHECK OIL LEVEL message is no longer displayed. If the message is displayed, check the engine oil dipstick level and add oil as needed.

Coolant Temperature

The ECM sends engine coolant temperature data to the IPC via class 2 serial data messages. The gage on the IPC displays similar engine coolant temperature values. When the engine coolant temperature is lower than the normal operating range -10°C , the DIC displays COOLANT TEMP-LOW. When the engine coolant temperature is above the normal operating range, the DIC displays COOLANT TEMP-HIGH.

Oil Life Remaining

The ECM sends the oil life remaining percentage to the IPC via class 2 serial data messages. The DIC displays the current percentage of the GM Oil Life System as determined by the ECM. When the oil life remaining percentage is above 10 percent, the DIC displays NORMAL. When the oil life remaining percentage drops below 10 percent, the DIC displays CHANGE OIL. When the engine oil is changed, reset the engine oil life in order to clear the oil life remaining percentage display. Press and hold the RESET button on the DIC switch for 5 seconds until the DIC displays NORMAL 100 percent.

Fuel Range

This message indicates the estimated distance that the vehicle can travel under the current fuel economy and fuel level conditions since the last reset of the value. Fuel Range is calculated using the equation: Fuel Range = Distance Sum/Fuel Sum.

The IPC receives a class 2 message from the ECM with fuel information. The value of this mode is retained during ignition OFF and can be changed between English units and metric units by pressing the English/Metric button on the DIC switch. The Fuel Range display cannot be reset. Whenever the calculated fuel range is less than 30 miles as displayed in the DIC and/or the powertrain control module (PCM) sends a fuel volume less than 4.6 liters, RANGE-LOW is displayed.

Fuel Used

The IPC calculates and displays the total amount of fuel used since the last reset of the value.

The IPC receives a class 2 message from the ECM with fuel information. The value of this mode is retained during ignition OFF and can be changed between English units and metric units by pressing the English/Metric button on the DIC switch. Press and hold the RESET button on the DIC switch for one second in order to reset the Fuel Used display.

Instantaneous Fuel Economy (IFE)

Instantaneous fuel economy is calculated using the equation: IFE = Distance/Fuel.

The IPC receives a class 2 message from the ECM with fuel information. The distance information is calculated by the IPC using the vehicle speed signal from the ECM. The value of this mode is retained during ignition OFF and can be changed between English units and metric units by pressing the English/Metric button on the DIC switch. The IFE display cannot be reset.

Oil Pressure

The IPC receives a class 2 message from the ECM indicating the engine oil pressure. The gage on the IPC displays similar engine oil pressure values. When the engine oil pressure is within the normal operating range, the DIC displays NORMAL and the actual oil pressure. When the engine oil pressure is below the normal operating range, the DIC displays LOW and the actual engine oil pressure.

Oil Temp

The IPC monitors the signal circuit of the engine oil temperature sensor in order to determine the engine oil temperature. The DIC displays the engine oil temperature in one of the following formats:

The XXX represents the engine oil temperature value. The engine oil temperature display cannot be reset by the driver.

The Day/Date/Time display returns to January 1, 2002 12:00 AM after a battery reconnect.

The range of the clock is from January 1, 2002 to December 31, 2099.

Timer

The timer records elapsed time starting from the time that it is activated. When the DIC displays the timer, pressing the INFO RESET button on the DIC resets the timer. Pressing the ON/OFF button on the DIC switch starts and stops the timer. The DIC displays the timer in one of the following formats:

The first XX represents hours elapsed, the second XX represents minutes elapsed, and the third XX represents seconds elapsed. The ON or OFF indicates whether the timer is currently running. The maximum range of the timer is 99 hours, 59 minutes, and 59 seconds. After the maximum range is reached, the timer displays all zeros (00:00:00).

Tire Pressure Monitor

The IPC receives a class 2 message from the Tire Pressure Monitoring (TPM) System for front and rear tire pressure data. The DIC will display the psi for each of the front and rear tires. When a tire with low air pressure is present, the DIC displays LOW TIRE PRESSURE XX. Press and hold the RESET button on the DIC switch for at least 5 seconds in order to reset the tire pressure display.

Press the Reset button on the driver information center (DIC) switch for three seconds in order to acknowledge and/or reset the current DIC display.

Press the ON/OFF button on the driver information center (DIC) switch in order to turn the DIC display ON and OFF. Holding the ON/OFF button for greater than 3 seconds toggles the IPC and the DIC displays between English and metric units. The DIC sends a class 2 message to the instrument panel cluster (IPC) indicating the current setting, and the km/h indicator or the MPH indicator illuminates in the IPC accordingly. The DIC displays either ENGLISH MODE or METRIC MODE for 2 seconds.

Personalization features may be set for the vehicle or the driver. Vehicle features do not change with each driver. Specific drivers are recognized by the vehicle through the keyless entry transmitters, the memory buttons or the driver information center (DIC).

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