Driver Selectable Functions

Pressing one of the IP buttons located next to the instrument cluster commands the instrument cluster to performing the following functions:
^ ENG/MET button toggles the instrument cluster and heater and A/C module between English/metric unit modes. The instrument cluster sends the current selected unit mode status to the heater and A/C module, via the class 2 serial data line and to the Head Up Display (HUD) (optional) via the Serial Parallel Interface (SPI).
^ ODO/TRIP button displays the following odometer information:
- Season odometer/trip odometer #1 (TRIP 1:)
- Season odometer/trip odometer #2 (TRIP 2:)
^ FUEL INFO button scrolls the DIC through the following fuel information messages.
- FUEL ECONOMY AVERAGE (MPG or L/100km) XXX, the Average Fuel Economy (AFE) is computed by using the formula: AFE - (Trip Distance)/(Trip Fuel Used) x Scale Factor. The AFE value is reset when the FUEL ECONOMY AVERAGE message is displayed and the RESET button is pressed.

The trip distance value is the distance traveled, while the trip fuel used value is fuel used since the last reset. Trip fuel used data is received from the Powertrain Control Module (PCM) and the trip distance is determined from the vehicle speed input.
^ FUEL ECONOMY INST (MPG or L/100km), the Instantaneous Fuel Economy (IFE) is based on the previous few seconds of driving and is computed by using the formula: WE - Distance / Fuel Used x Scale Factor.

Distance is determined from the discrete vehicle speed input to the instrument cluster. Since fuel data is received from the PCM this portion of the instrument cluster is dashed if a loss of PCM communications condition exists.
^ Vehicle (Fuel) range is displayed as an estimate of expected remaining driving distance with current fuel level. Driving range is based on the fuel in the tank and fuel economy of the last 25 miles. Because of the required predictions, displayed range and actual range may vary. When calculated range falls below 40 miles, the range displays LOW. Vehicle Range is calculated by the instrument cluster as follows: Estimated Driveable Range - Distance Traveled/Fuel Used x Scale Factor x Filtered Fuel in Tank.

This calculation cannot be reset by the driver. The data used to calculate range is lost if the battery is disconnected. This portion of the instrument cluster is dashed if a loss of PCM communications condition exists.
^ Fuel Used is the gallons (L) used since the last reset. Fuel used is reset by pressing the RESET button when fuel used is displayed on the DIC. Incremental fuel used data is received from the PCM and stored in the instrument cluster This portion of the instrument cluster is dashed if a loss of PCM communications condition exists.
^ GAGE button, scrolls the DIC through the following messages.

- OIL PRESSURE NORMAL (PSI or kPa), oil pressure data is received from the PCM via the class 2 serial data line. The word NORMAL is replaced with LOW when the low oil pressure indicator is activated. This portion of the instrument cluster displays ???? if a loss of PCM communications condition exists.

- COOLANT TEMP NORMAL (°F or °C), coolant temperature data is received from the PCM via the class 2 serial data line. The word NORMAL is replaced with HOT when the coolant temperature indicator is activated. This portion of the instrument cluster displays ???? if a loss of PCM communications condition exists.

- BATTERY STATE NORMAL V, battery voltage data is received from the SBM via the class 2 serial data line. The word NORMAL is replaced with LOW when the battery voltage is less than 10.5 volts and with HIGH when the battery voltage is greater than 15.9 volts. This portion of the instrument cluster displays ???? if a loss of SBM communications condition exists.

- OIL LIFE INDEX NORMAL ###%, where ### represents the approximate percentage of useful oil life remaining. The word NORMAL is replaced with CHANGE OIL when the oil life index is less than 11%. This portion of the instrument cluster displays ???? if a loss of SBM communications condition exists. After an oil change, reset the message by displaying the OIL LIFE INDEX NORMAL ###% message and than pressing the RESET button for approximately 5 seconds or until the OIL LIFE INDEX NORMAL 100% message is displayed.

- TIRE PRESSURE NORMAL, Tire pressure status is calculated by the EBTCM and sent to the instrument cluster via the class 2 serial data line. The word NORMAL is replaced with LOW: CHECK TIRES when a low tire pressure condition is detected. This portion of the instrument cluster will display ???? if a loss of EBTCM communications condition exists. To reset, fill the tires to the proper pressures, then display the TIRE PRESSURE LOW: CHECK TIRES message and press the RESET button for approximately 5 seconds or until the TIRE PRESSURE NORMAL message is displayed.