GM Service Manual Online
For 1990-2009 cars only

The DIC has different displays which can be accessed by pressing the DIC buttons located on the left side of the steering wheel. The DIC displays trip, fuel, vehicle system information, and warning messages if a system problem is detected.

DIC Buttons


Object Number: 2037686  Size: G7
(Trip/Fuel): Press this button to go through the displays and the select the information.

(Thumbwheel): Use the thumbwheel to scroll through the available options.

(ENTER to Reset/Select): Press the thumbwheel to set or reset certain functions and to turn off or acknowledge messages on the DIC.

Trip/Fuel Menu Items

Press to scroll through the following menu items:

    • Speedometer
    • UNITS
    • Tire Pressure
    • Customize Options
    • Odometer/Trip Odometer
    • Distance/Time To Go
    • Range
    • Avg (Average)Speed/Avg (Average) Fuel
    • OverSpeed

Speedometer

Press until the speedometer is displayed.

The speedometer shows how fast the vehicle is moving in either miles per hour (MPH) or kilometers per hour (km/h). To switch between English and metric measurements, see "UNITS" later in this section.

The digital speedometer display can be enabled or disabled. See "Digital Speedometer" under DIC Vehicle Customization for more information.

UNITS

Move the thumbwheel up or down to highlight English or Metric when the UNITS display is active. Press to confirm the setting. This will change the displays on the cluster, DIC, and the temperature display in the mirror to either English or metric measurements.

Tire Pressure

Press until Tire Pressure is displayed.

The display will show a vehicle and the approximate pressures of all four tires. Tire pressure is displayed in either pounds per square inch (PSI) or in kilopascal (kPa).

This display can be customized. See DIC Vehicle Customization for more information.

Customize Options

See DIC Vehicle Customization for more information.

Odometer/Trip Odometer

Press until the Odometer/Trip Odometer is displayed.

The odometer display shows the distance the vehicle has been driven in either miles (MI) or kilometers (km). To switch between English and metric measurements, see "UNITS" earlier in this section.

The Trip Odometer display shows the current distance traveled since the last reset for the trip odometer. The trip odometer can be reset to zero by pressing and holding while the trip odometer value is highlighted. If is only pressed briefly, the Avg Speed/Avg Fuel will be reset as well.

Distance/Time To Go

Press until To Go is displayed. If this item doesn't display, check that the display is turned on through the Customize Options menu. See DIC Vehicle Customization for more information.

At the start of a trip, estimate the distance to arrival (for example, from maps, road signs). Move the thumbwheel up or down until the display shows the estimated trip distance. When driving, the computer constantly updates the time to arrival, based on changing driving speeds. Use the thumbwheel to adjust the distance any time this display is shown. Time to go is shown in hours and minutes and is only shown if the distance to go is more than zero.

This display can be turned on or off and the default setting can be changed.

Range

Press until Range is displayed. This display shows the approximate distance the vehicle can be driven without refueling. The fuel range estimate is based on an average of the vehicle's fuel economy over recent driving history and the amount of fuel remaining in the fuel tank. Fuel range cannot be reset.

Avg (Average)Speed/Avg (Average) Fuel

Press until Avg Speed/Avg Fuel is displayed.

Avg Speed shows the average speed (while the engine is running) since the last reset.

Avg Fuel shows average fuel used since the last reset.

To reset only the Avg Speed or Avg Fuel, press and hold while either value is highlighted. If is only pressed briefly, the Trip Odometer will be reset as well.

OverSpeed

OverSpeed allows the driver to set a speed that they do not want to exceed. OverSpeed will illuminate in the display and a chime will sound to warn that the vehicle’s speed is equal or has exceeded the preselected value. During an OverSpeed warning, the OverSpeed display is shown, allowing the driver to make adjustments.

To set the OverSpeed warning press when OverSpeed is displayed to highlight the OverSpeed mode. Move the thumbwheel up or down to scroll through and highlight one of the following options:

Off: No OverSpeed warning set.

Manual: Allows you to manually set the OverSpeed warning. See "Manual OverSpeed" following.

Preset 1: Default setting 30 MPH (48 km/h)

Preset 2: Default setting 45 MPH (72 km/h)

Preset 3: Default setting 55 MPH (89 km/h)

Preset 4: Default setting 70 MPH (113 km/h)

The selection is set automatically after a few seconds.

The corresponding value of the presets will be shown on the display.

The preset OverSpeed warnings can be reprogrammed. See "Programming the OverSpeed Presets" later in this section.

Manual OverSpeed

To manually set the OverSpeed warning:

  1. Use the thumbwheel to select Manual for OverSpeed.
  2. Press to highlight the current value.
  3. Use the thumbwheel to adjust the value in 5 MPH or km/h increments and press to confirm the setting.

To set the OverSpeed warning to the vehicle's current speed:

  1. Use the thumbwheel to select Manual as described in the OverSpeed section.
  2. Press to highlight the current value.
  3. Press and hold for more than 3 seconds to set the value to the nearest 5 MPH or km/h above the current vehicle’s speed.

Programming the OverSpeed Presets

While the vehicle’s speed is 6 MPH (10 km/h) or below, each of the presets can be altered and values can be stored for future use.

To reprogram the OverSpeed presets:

  1. Use the thumbwheel to select the desired preset and press .
  2. Move the thumbwheel up or down to adjust the value in 1km/h increments.
  3. Press to confirm the setting.

Adjusting the Setting During an OverSpeed Warning

While the OverSpeed warning is displayed move the thumbwheel up or down to adjust the value when in Manual mode or to select a different preset when in Preset mode. Press and hold for more than 3 seconds to set the value to the nearest 5 MPH or km/h above the current vehicle’s speed. If Preset mode was selected, this will change it to Manual mode.

Underspeed Chime

If an OverSpeed warning appeared and the vehicle’s speed drops below the set value, you will hear a chime. The underspeed chime can be turned on or off through the vehicle customization. See DIC Vehicle Customization for more information.