Driver Information Center (DIC) Description and Operation
Table 1: Trip Display
In the lower middle of the instrument cluster, an additional
display is installed. Its task is to give additional information,
such as an odometer, select gear or error codes/warning messages
refer to
Indicator/Warning Message Description and Operation . This part
of the instrument cluster is available in 3 different variants,
mostly depending on the assembled engine.
There are 4 switch functions for the driver information
center.
Menu
The Menu switch is used to navigate between the Vehicle
Information Menu and the Trip/Fuel Information Menu. Cycle through
the following vehicle parameters by successive pressing of the Menu
switch.
Up and Down
The Up and the Down switches are used to navigate within the
menus. Cycle through the following menu parameters by successive
pressing of the Down switch. Some menus are optional.
Vehicle Information Menu
| • |
Ambient Air Temperature
|
Trip/Fuel Information Menu
| • |
Instantaneous Fuel
Economy |
Trip 1/2
The trip odometer 1 or 2 can be accessed through the driver
information center switch Up/Down function.
Trip Display
Driver Information Center Trip Display
|
Range
|
Europe-SI
|
USA
|
GB
|
TRIP 1
|
####.# km
|
####.# miles
|
####.# miles
|
TRIP 2
|
####.# km
|
####.# miles
|
####.# miles
|
|
| |
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 instrument cluster. 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 engine control module (ECM) sends the fuel range value to
the instrument cluster. The instrument cluster receives a GMLAN
message with fuel information. The fuel range value is retained
during ignition OFF and can be changed between Europe-SI, USA and
GB units by accessing the driver information center Units menu. The
Fuel Range display cannot be reset. LOW is displayed when fuel
range is below a predetermined value.
Average Fuel Economy
Average fuel economy is calculated using the equation: Average Fuel
Economy = 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 ECM sends the average fuel economy GMLAN message to the
instrument cluster. The value of this mode is retained during
ignition OFF and can be changed between English units and metric
units by selecting from the driver information center options
menu.
Instantaneous Fuel Economy
The ECM sends the instantaneous fuel economy GMLAN message to the
instrument cluster. The value of this mode can be changed between
English units and metric units by selecting from the driver
information center options menu.
Average Vehicle Speed
Average speed is calculated using the equation: Average Speed =
Average Speed Distance/Average Speed 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. |
Timer
The timer records elapsed time starting from activation. When the
driver information center displays the timer, pressing the
Set/Reset switch for longer than 1 s the driver information center
resets the timer. Pressing the Set/Reset button on the driver
information center switch for approximately 1 s starts and stops
the timer. The driver information center displays the timer in one
of the following formats:
The driver information center 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 h, 59 min, and 59 s. After the
maximum range is reached, the timer displays zeros in all
positions. (00:00:00).
Outside Air Temperature
The outside air temperature can be accessed through the driver
information center Trip/Fuel switch function. The driver
information center shows the outside air temperature as a damped
value.
Units Menu
The unit mode is used to toggle between Europe-SI, USA and GB units
and can be accessed through the driver information center Menu
switch and the driver information center Set/Reset switch.
Tire Pressure Monitor
The instrument cluster receives a GMLAN message from the tire
pressure monitoring system for front and rear tire pressure data.
The driver information center will display the pressure for each of
the front and rear tires. When a tire with low air pressure is
present, the driver information center displays a warning, CHECK XX
TIRE PRESSURE.
Oil Life Remaining
The ECM sends the oil life remaining percentage to the instrument
cluster via a GMLAN message. The instrument panel cluster receives
a GMLAN message indicating the engine oil life remaining. The
driver information center displays the current percentage of the GM
Oil Life System as determined by the ECM. When the oil life
remaining percentage drops below 5%, the driver information center
displays CHANGE ENGINE OIL SOON. When the engine oil is changed,
reset the GM Oil Life System. Refer to
GM Oil Life System Resetting .
Odometer
The instrument cluster displays the vehicle odometer in the
driver information center. The ECM send a distance rolling count
message on GMLAN to the body control module (BCM). The BCM uses
this information to calculate the vehicle odometer. This odometer
value is then sent to the instrument cluster on GMLAN. The
instrument cluster does not calculate the odometer. The odometer
displays miles or kilometers as selected in the Units menu.
The odometer value is stored in multiple modules. The instrument
cluster is a secondary storage module for the odometer, while the
BCM is the primary storage and accumulator.
In addition to storing the odometer value for the vehicle, the
instrument cluster and the BCM store the VIN. Software checks are
performed to ensure these modules, and their stored odometer
information, can not be move or transferred between different
vehicles.
If the VINs do not match, the instrument cluster will go into an
error mode and display "----" (dashes). If the VIN mismatch exists
over a calibrated distance, the instrument cluster will "lock" the
odometer display and only show dashes, even if the VIN mismatch is
subsequently correct. The only way to clear or "unlock" the
instrument cluster is to perform a BCM programming event using
SPS.
Gear Indication
If the vehicle is equipped with an automatic transmission the
driver information center displays the actual gear. The instrument
cluster receives a GMLAN message with actual gear information from
the automatic transmission module.
Park Assist Menu
If the parallel parking assistant is activate, the parallel
parking assist menu is displayed in the driver information center.
The driver information center displays the current state of the
parallel parking assist until the instrument cluster receives a
message indicating otherwise.
Language
The driver information center is capable of displaying in
different languages, corresponding to the radio language settings.
The instrument cluster receives a GMLAN message with language
information from the radio.
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