Driver Information Center (DIC) Description and Operation Radio
The radio displays driver information center (DIC) information when it first powers up. The uplevel radio shows the time and ambient air temperature on the first line of the display and DIC information on the second line of the display.
There are 3 DIC buttons on the radio.
ENTER
The ENTER button is used in order to acknowledge a warning message, reset an option, or to select an option.
INFO
The INFO button is used in order to navigate through the following driver information center (DIC) information modes:
AV SPEED
Average speed is calculated using the equation: Average Speed = Distance/Ignition On
| • | Distance = The accumulated distance travelled since the last reset of this value |
| • | Ignition On = The accumulated ignition on time since the last reset of this value |
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 period. Press and hold the ENTER button on the radio for one second in order to
reset the average speed display.
ECON
Average fuel economy is calculated using the equation: AFE = Distance/Fuel
| • | Distance = The accumulated distance travelled since the last reset of this value |
| • | Fuel = The accumulated fuel consumption since the last reset of this value |
The instrument panel cluster (IPC) receives a serial data message from the body control module (BCM) regarding fuel usage information. The value of this mode is retained during ignition OFF period and can be changed between English units and Metric units.
Press and hold the ENTER button on the radio switch for one second in order to reset the ECON display.
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.
| • | Distance Sum = The accumulated distance travelled since the last reset of this value. |
| • | Fuel Sum = The accumulated fuel delivered since the last reset of this value |
The radio receives a serial data message from the BCM with fuel information. The value of this mode is retained during ignition OFF and can be changed between English units and metric units. The FUEL RANGE display cannot be reset.
OIL LIFE
The engine control module (ECM) sends the oil life remaining percentage to the BCM via a serial data message. The radio receives a serial data message from the BCM indicating the remaining oil life. The radio displays the current percentage of the GM Oil
Life System as determined by the ECM.
TRIP A and TRIP B
The instrument panel cluster (IPC) contains a season odometer and a trip odometer. Momentarily press the trip/reset switch in order to toggle between the season odometer and the trip odometer. Press the trip/reset switch for greater than 2 seconds,
while the trip odometer is displayed, in order to reset the trip odometer. The IPC displays the vehicle mileage and trip mileage as determined by the IPC. The IPC calculates the mileage based on the vehicle speed from the engine control module (ECM). The odometer
will display 'error' if an internal IPC memory failure is detected.
MENU
The MENU button is used in order to navigate through the following personalization modes:
OIL-LIFE RESET
The engine control module (ECM) sends the oil life remaining percentage to the body control module (BCM) via the serial data circuit. The radio receives serial data messages from the BCM indicating the remaining oil life. The radio displays the current
percentage of the GM Oil Life System as determined by the ECM. When the oil life remaining percentage drops below 10 percent, the radio displays CHANGE ENGINE 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 ENTER button for 5 seconds until the radio displays ACKNOWLEDGED.
For more information on the rest of the personalization modes, refer to Owner Manual.
Ambient Air Temperature
The body control module (BCM) reads the ambient air temperature sensor. The temperature sensor is a 2-wire negative temperature co-efficient thermistor. The BCM provides 5 volts to an internal input resistor that is connected to the ambient air
temperature sensor. The ambient air temperature is displayed in the driver information center (DIC) located in the radio. The ambient air temperature information is transmitted by the BCM for display in the DIC via the serial data circuit. The BCM provides the
ambient air temperature information in Celsius. The radio converts the temperature to Fahrenheit, if required.
Indicators and Warning Messages
For more information on driver information center (DIC) warning messages, refer to
Indicator/Warning Message Description and Operation.
