GM Service Manual Online
For 1990-2009 cars only

The driver information center (DIC) displays the DIC Welcome message for 5 seconds when it first powers up. The DIC then returns to the last display status before no power condition.

There are 3 button functions for the DIC.

    • Customisation
    • Set/Reset
    • Trip/Fuel

Trip/Fuel

Cycle through the following vehicle parameters by pressing the TRIP button.

    • Average Fuel Economy (AFE)
    • Average Vehicle Speed (AVS)
    • Fuel Range
    • Fuel Used
    • Instantaneous Fuel Economy (IFE)
    • Odometer
    • Trip A
    • Trip B
    • Trip Time

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
    • TPMS
    • Language
    • Park Assist
    • Navigation

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

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.
    • Fuel Used = The accumulated fuel delivered since the last reset of this value

The ECM sends the fuel range value to the IPC. The IPC receives a GMLAN message with fuel information. 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 DIC 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 more than 3 seconds. The value of this mode is retained during ignition OFF.

Instantaneous Fuel Economy (IFE)

Instantaneous fuel economy (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. The distance information is calculated by the IPC using the vehicle speed information from the ECM. These values are retained during ignition OFF. The IFE display cannot be reset.

Tire Pressure Monitoring System

The IPC receives a GMLAN message from the tire pressure monitoring system (TPMS) for front and rear tire pressure data. The DIC will display the pressure for each of the front and rear tires. When a tire with low air pressure is present, the DIC displays XXXX XXXX TIRE PRESSURE LOW.

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).

Fuel Display

Parameter

Update Rate

Range

Reset Value

Units

Average Fuel Economy

1 second

0.0-99.9

99.9

L/100 KM

Instant Fuel Economy

2 seconds

0-70

N/A

L/100 KM

Fuel Range

1 second

0-999

N/A

KM

Fuel Used

1 second

0-999.9

0.0

L

Language

The driver information centre (DIC) is capable of displaying in 2 languages

    • English
    • Portuguese