Principles of Operation
PRINCIPLES OF OPERATIONThe message center is part of the instrument cluster. The message center electronic functions use both hardwired and controller area network (CAN) circuits to transmit and receive information.
The message center provides the following features:
- Information displays
- Setup displays
- Warning messages
- System check messages
The message center information can be selected by pressing any of the following 3 buttons:
- SET
- INFO
- RESET
The message center buttons are located on the steering wheel assembly, behind the steering wheel audio control buttons.
Information Displays
The information displays are non-timed modes. The selected mode remains on until the driver presses a message center button to change the mode or it is overridden by another mode. The information display modes are:
- Odometer/trip odometer
- Distance to empty
- Average fuel economy
- Fuel used
- Trip elapsed drive time
- Compass
System Check
Selecting this function from the SETUP menu causes the message center to cycle through each of the systems being monitored. For each of the monitored systems, the message center indicates either an OK message or a warning message for 2 to 4 seconds. The system check report is as follows:
- OIL LIFE STATUS/RESET
- DOOR AJAR STATUS
- DRIVER DOOR AJAR STATUS
- PASSENGER DOOR AJAR STATUS
- LEFT REAR DOOR AJAR STATUS
- RIGHT REAR DOOR AJAR STATUS
- LIFTGATE AJAR STATUS
- RUNK AJAR STATUS
- CHARGING SYSTEM
- BRAKE SYSTEM
- PARK BRAKE STATUS
- WASHER FLUID LEVEL STATUS
- BRAKE FLUID LEVEL
- FUEL LEVEL STATUS
- DTE STATUS
- FUEL CAP STATUS
Warning Messages
The warning messages are single cycle, non-resettable and repetitive. The single cycle warning messages display once whenever the ignition switch is turned to the ON position or a fault occurs in a system, and can be cleared by pressing the RESET button.
The single cycle warning messages are:
- LIFTGATE AJAR
- TRUNK AJAR
- OIL LIFE 0%, CHANGE OIL
- OIL LIFE XX%, CHANGE SOON
- LOW BRAKE FLUID LEVEL
- LOW WASHER FLUID LEVEL
The repetitive warning messages are displayed at a fixed interval whenever the ignition switch is turned to ON or is in the ACC position. To remove a repetitive warning message, press the RESET button. The message reoccurs after 10 minutes or until the warning condition is corrected.
The repetitive warning messages are:
- CHECK CHARGING SYSTEM
- CHECK BRAKE SYSTEM
- LOW FUEL LEVEL
The non-resettable warning messages display whenever the ignition switch is turned to ON and a fault occurs in a system. The fault must be corrected to clear the non-resettable warning messages.
The non-resettable warning messages are:
- DRIVER'S DOOR AJAR
- PASSENGER'S DOOR AJAR
- LEFT REAR DOOR AJAR
- RIGHT REAR DOOR AJAR
- PARK BRAKE ENGAGED