Driver Information Center (DIC) Description and Operation
Customisation
The Customisation Menu is used to set features for both the vehicle and the driver. Many of the parameters in the Trip/Fuel menu can be programmed.
| • | Security |
| • | Lighting |
| • | Trip Computer |
| • | Radio Display |
| • | Language |
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.
Average Speed
Average speed is calculated using the equation: Average Speed = AVS Distance/AVS Time
| • | 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 |
Remaining Fuel
The Remaining Fuel provides an indication of the remaining fuel in the vehicles fuel tank and is calculated whenever a changed fuel level message is received from GMLAN, whilst the ignition is ON. The IPC is responsible for filtering fuel information and displaying remaining fuel in the tank. Fuel filtering will be performed in the following circumstances:
| • | Fuel filtering while driving |
| • | Re-fuel detection upon ignition ON |
| • | Re-fuel detection while stationary with ignition ON |
Remaining fuel is calculated using the equation: Remaining Fuel = (Filtered Fuel Level (%) X Fuel Total Capacity (L) ) / 100
| • | Filtered Fuel Level = A value calculated internally by the IPC using a signal received via GMLAN from the ECM. This value is represented as a percentage |
| • | Fuel Total Capacity = Supplied via GMLAN to the IPC. This value is represented in litres. |
The display shows LOW when the fuel percentage received via GMLAN is invalid. The displayed resolution is to the nearest multiple of 5 litres or Gallons. The Remaining Fuel value is not reset when the ignition is cycled.
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 = Average Fuel Economy X Remaining Fuel.
| • | Average Fuel Economy = Refer to the above definition |
| • | Remaining Fuel = Refer to the above definition |
The IPC receives the average fuel economy and remaining fuel level from the ECM via GMLAN and using the above formula calculates the Fuel Range. The fuel range value is retained during ignition OFF. The Fuel Range display cannot be reset. LOW is displayed when fuel range is below a predetermined value.
Fuel Used
The IPC calculates and displays the total amount of fuel used since the last reset operation. You can reset the fuel used mode by depressing and holding the ENTER button for approximately 3 seconds when the fuel used display is visible. The value of this mode is retained during ignition OFF.
Instantaneous Fuel Economy (IFE)
Instantaneous fuel economy (IFE) is calculated internally by the IPC after receiving the Instantaneous Fuel Consumption Rate GMLAN signal sent by the ECM. The IFE is updated on the display when the value changes from the currently stored value.
Instantaneous fuel economy is stored in the IPC as Litres/hour. It is then converted and displayed in the following two formats:
| • | Fuel Used versus TIme = Displayed when travelling at a speed less than 10 km/h. Displayed as Litres Used per Hour (L/hr) or Gallons Used per Hour (Gal/hr) |
| • | Fuel Used versus Distance = Displayed when travelling at a speed greater than 10 km/h. Displayed as Litres Used per 100km (L/100km) or Miles Used per Gallon (MPG). |
Instantaneous Fuel Consumption is calculated using the following equation: Consumption (L/100KM) = Consumption Rate (L/h) / Current Speed (km/h) X 100
| • | Current Speed = Current road speed of vehicle (km/h) |
| • | Consumption Rate = Received via GMLAN from the ECM represented as Litres per hour (L/h). |
The IFE value is set to zero after a power cycle, until a valid value is received after ignition ON. The IFE value is not reset when the ignition is cycled. The IFE value cannot be reset via the trip switches.
Tyre Pressure Monitoring System
The IPC receives the tyre pressures from the remote function actuator (RFA). It receives the tyre pressure in metric units and converts these units to PSI when required. The user can customise the display to allow the units to be shown as either kPa or PSI. The user can also customise the following options:
| • | Enable/Disable TPM Display on the trip computer. |
| • | If TPM display is enabled for the trip computer, the user may also choose to enable/disable the "Tyre Pressure Warnings". Refer to Indicator/Warning Message Description and Operation. |
Trip Time
The timer records elapsed time starting from activation. When the DIC displays the timer, pressing the ENTER button for 1 second on the DIC resets the timer. Pressing the ENTER button on the DIC switch for approximately 1 second 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: HH: MM:SS
The (HH) represents hours elapsed, (MM) represents minutes elapsed, and (SS) 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).
Parameter | Update Rate | Range | Reset Value | Units |
|---|---|---|---|---|
Average Fuel Economy | 30 seconds | 0.0-99.9 | 99.9 | L/100 km |
Instant Fuel Economy | 100 milliseconds | 0.0-99.9 | N/A | L/100 km |
Fuel Range | 1 second | 0-999 | N/A | km or mi |
Fuel Used | 90 seconds | 0-999.9 | 0.0 | L or Gal |
Language
The driver information centre (DIC) is capable of displaying in 2 languages
| • | English |
| • | French |
