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Driver/Vehicle Information Display: Description and Operation



DRIVER INFORMATION CENTER (DIC) DESCRIPTION AND OPERATION

The driver information center (DIC) displays the DIC WOW for 5 seconds when it first powers up. If enabled through Personalization, the DIC then returns to the last display status before no power condition.
There are 7 switch functions for the DIC.
- INFO
- Maintenance
- Personalization
- Menu
- Set/Reset
- INFO UP
- INFO DOWN

Info
The INFO button is used to navigate between vehicle information parameters. Cycle through the following vehicle parameters by successive pressing of the INFO button.
- Average Fuel Economy (AFE)
- Average Vehicle Speed (AVE)
- Battery Voltage
- English/Metric
- Fuel Range
- Fuel Used
- Instantaneous Fuel Economy (IFE)
- Trip Time
- Trip A
- Trip B
- Off

Maintenance




The Maintenance button is used to navigate between vehicle information parameters. Cycle through the following vehicle parameters by successive pressing of the Maintenance button.
- Oil Life Index (OLI)
- Park Assist Menu
- Front Tire Pressures
- Rear Tire Pressures
- Tire Programming Menu
- Tire Inflation Monitoring System (TIMS) Reset
- Key Fob Programming Menu
- Blank Display

Average Fuel Economy
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 engine control module (ECM) sends the average fuel economy GMLAN message to the instrument panel cluster (IPC). The value of this mode is retained during ignition OFF and can be changed between English units and metric units by selecting from the DIC options menu.

Average Vehicle Speed
Average vehicle speed is calculated using the equation: Average Speed = AVS Distance/AVS Time
- Distance = The accumulated distance travelled since the last reset of this value
- Time = The accumulated time since the last reset of this value

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 battery connection to the IPC. Fuel Range is calculated using the equation: Fuel Range = Range Distance/Range Fuel Used.
- Range Distance = The accumulated distance travelled since the last reset of this value.
- Range Fuel Used = The accumulated fuel delivered since the last reset of this value

The ECM sends the fuel range value to the IPC. IPC receives a GMLAN message with fuel information. The fuel range value is retained during ignition OFF and can be changed between English and Metric units by accessing the DIC English/Metric menu. The Fuel Range display cannot be reset. LOW is displayed when fuel range is below a predetermined value.

Fuel Used
This message indicates the amount of fuel used since last reset. Fuel Used is calculated using the equation: Fuel Used = Fuel Sum.
- Fuel Used = The accumulated fuel used since the last reset of this value.
- Fuel Sum = The accumulated fuel sum since the last reset of this value

The ECM sends the fuel used value to the IPC. The IPC receives a GMLAN message with the fuel information. The fuel used value is retained as long as battery power is available to the DIC. The fuel used value can be changed between English and Metric units by accessing the DIC English/Metric menu.

Instantaneous Fuel Economy (IFE)
IFE is calculated using the equation: IFE = Distance/Fuel Used.
- Distance = The accumulated distance travelled for the last 2 seconds.
- Fuel = The accumulated fuel delivered for the last 2 seconds

The IPC receives a GMLAN message from the ECM powertrain control module (PCM). The distance information is calculated by the IPC using the vehicle speed information from the ECM/PCM. These values are retained during ignition OFF and can be changed between English and Metric units accessing the DIC English/Metric menu. The IFE display cannot be reset.

Elapsed Time
The timer records elapsed time starting from activation. When the DIC displays the timer, pressing the SET/RESET switch for 1.0 seconds on the DIC resets the timer. Pressing the SET/RESET button on the DIC switch for approximately 1.0 seconds starts and stops the timer. The DIC displays the timer in one of the following formats:

The DIC displays the timer in the following format: XX: XX:XX:

The first XX represents hours elapsed, the second XX represents minutes elapsed, and the third XX represents seconds elapsed. 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).

Battery Voltage




Battery voltage data is not determined by the DIC and is not a resetable parameter. The DIC displays (- - -) when an invalid battery data is received or when the IPC experiences a loss GMLAN communications.

Oil Life Index
The Oil Life Index is used to display the estimated percentage of oil life remaining. The ECM sends the oil life remaining percentage to the IPC via GMLAN message. The DIC displays the current percentage of the GM Oil Life System as determined by the ECM. When the oil life remaining percentage drops below 5 percent, the DIC displays CHANGE ENGINE OIL SOON. When the engine oil is changed, reset the GM Oil Life System. Refer to GM Oil Life System - Resetting.

Tire Pressure Monitor




The IPC receives a GMLAN message from the tire pressure monitoring (TPM) system for front and rear tire pressure data. The DIC will display the pressure for each of the front and rear tires. Tire pressure values are not resetable through the DIC.

Park Assist Menu
The park assist menu is displayed in the DIC to indicate the ON/OFF status. The DIC displays the current state of the park assist until the IPC receives a message indicating a status change. The DIC displays (- - -) when communication with park assist is lost.

Key FOB Programming Menu
The key fob programming menu is used to initiate programming of the key fobs. The key fob programming menu can only be achieved with the vehicle transmission in PARK.

English/Metric Button
The English/Metric button is used to toggle between English and Metric unit systems and can be accessed through the DIC MAINTENANCE switch function.

Trip A/B




The trip odometer A or B can be accessed through the DIC INFO switch function.

Language
The DIC is capable of displaying in the languages listed below. However, the DIC is capable of storing at least 3 different languages at any one time.
- English
- French
- Spanish
- Japanese
- German
- Italian

A simultaneous press of the INFO and MENU switches for about 1 second provides a shortcut to change the language without understanding the currently displayed language.
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