Lucerne V6-3.9L (2009)
Press the Set/Reset button on order to set or acknowledge any of the switch menu options.
Average Fuel Economy
Average fuel economy is calculated using the equation: AFE = Distance/Fuel
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Distance = The accumulated distance travelled since the last reset of this value
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Fuel = The accumulated fuel consumption since the last reset of this value
The ECM sends the average fuel economy serial data message to the IPC for accumulation. 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 vehicle information menu.
Average Speed
Average speed is calculated using the equation: Average Speed = AVS Distance/AVS Time
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Distance = The accumulated distance travelled since the last reset of this value
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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.
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Range Distance = The accumulated distance travelled since the last reset of this value.
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Fuel Used = The accumulated fuel delivered since the last reset of this value
The ECM sends the fuel range value to the instrument panel cluster (IPC). The fuel range value is retained during ignition OFF and can be changed
between English and Metric units by accessing the English/Metric menu. The Fuel Range display cannot be reset. LOW is displayed when fuel range is
below a predetermined value.
Engine Oil Life Index
The engine control module (ECM) sends the engine oil life remaining information via serial data circuit to the IPC for display. When the ECM detects
that the oil life remaining percentage has dropped below 5 percent, it sends the IPC a serial data message to display CHANGE ENGINE OIL SOON.
When the engine oil is changed, reset the GM Oil Life System. Refer to GM Oil Life System Resetting (See: Oil Change Reminder Lamp/Service and
Repair).
Tire Pressure Monitor
The instrument panel cluster (IPC) receives a serial data message from the tire pressure monitoring (TPM) system for the front and rear tire pressure. The
driver information center (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 XX TIRE PRESSURE LOW.
Reset Tire Pressure System
Press the vehicle information button until PRESS TO RESET TIRE SYSTEM displays. This display allows you to reset the tire pressure system. Once in
this display, press the set/reset button to reset the system. The message TIRE PRESSURE SYSTEM RESET will display after the system has been reset.
Park Assist Menu
The park assist menu is displayed in the DIC. The DIC displays the current state of the park assist - ON/OFF. The IPC receives a serial data message
indicating the state of the park assist system. The DIC displays (- - -) when communication with the park assist system is lost.
English/Metric Button
The English/Metric button is used to toggle between English and Metric unit system and can be accessed through the vehicle information switch.
Trip A/B
The trip odometer A or B can be accessed through the Trip/Fuel switch.