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Information system

NAVIGATION
A five inch Thin Film Transistor screen mounted in the instrument cluster projects color navigation information into the center of the speedometer. The information includes maps, turn identification, selection menus and instructions. The system includes a variety of choices for selecting destinations and routes.

The information is displayed in map format, as turn by turn instruction or a combination of the two. The system also provides audio prompts through the vehicles audio system. The systems audio will override all other audio outputs, with the exception of the Hands Free Cell Phone, to the front speakers that are active at the same time. Spoken prompts are recordings of a human voice. The system uses a Global Positioning System (GPS) antenna mounted under the instrument panel to collect satellite data to compute the position of the vehicle. A navigation unit uses the satellite data to translate the vehicle location to latitude and longitude coordinates. it combines the latitude and longitude with proprietary map data from a DVD unit to perform all system calculations and display formatting. A single DVD disc contains map information for the entire United States. The DVD (navigation) unit is mounted in the covered floor storage compartment at the left rear of the vehicle.

INSTRUMENT PANEL SWITCH POD
The Switch Pod Assembly is located just to the right of the cluster in the instrument Panel. The Switch Pod Assembly consists of the EVIC buttons, the Navigation buttons (if equipped), Hazard switch, Vehicle Theft Security indicator, and analog Clock. The EVIC function buttons are labeled US/M, MENU, STEP, and RESET. The Navigation function buttons are labeled NAV, CANCEL, ENTER, (scroll left), (scroll up), (scroll right), and (scroll down). The Vehicle Theft Alarm light is a red oval located under the EVIC reset button. The Analog Clock consists of an hour and minute hands with one time adjust button. The Hazard switch is designated with a red triangle and is a push on push off switch.

ELECTRONIC VEHICLE INFORMATION CENTER (EVIC)
The Electronic Vehicle Information Center (EVIC), which is located in the cluster, uses a vacuum fluroscent (VF) display to supply the vehicle operator with:
- compass heading.
- average fuel economy.
- distance to empty. distance to service. warning messages. customer programmable features service messages.
- memory system messages when the vehicle is equipped with memory systems).
The EVIC also provides the interface to enable and disable vehicle programmable features when the vehicle is equipped with certain features.

The EVIC function buttons are labeled:
- US/M
- MENU
- STEP
- RESET
The EVIC sends and receives data over the PCI bus, communicating with the:
- Body Control Module (BCM)
- The BCM supplies most of the information that the EVIC displays.
- The EVIC receives all display requests, except for the internal compass function. over the PCI bus.
- Integrated Power Module (IPM).
- Compass/Mini -Trip Computer (CMTC)
- The EVIC receives Tire Pressure Monitoring System information from the CMTC.

VEHICLE INFORMATION DISPLAY

NOTE: The EVIC will not display information for any of the screens for which it did not receive the proper PCI Bus data.

The EVIC provides the following functions:
- Compass direction
- Language type
- Distance to empty
- Average fuel economy
- Distance to service
- Customer programmable Features
The EVIC will display various memory functions based on a PCI bus message from the Driver Door Module (DDM). The EVIC will also display the following driver alert messages with either in amber or red priority indicator lamp:
- TURN SIGNAL ON
- PERFORM SERVICE
- DOOR AJAR (individual or multiple doors)
- LOW or HIGH TIRE(S) PRESSURE (when equipped)
- PEDAL ADJUST DISABLED CRUISE ENGAGED (when equipped)
- PEDAL ADJUST DISABLED VEHICLE IN REVERSE (when equipped)
- WASHER FLUID LOW
- LOW BRAKE FLUID
- LOW FUEL
- MENU IN PARK ONLY (when equipped)
- PUT IN PARK FOR LIFTGATE (when equipped)
- TCS ACTIVE (when equipped)
- SERVICE TCS SYSTEM (when equipped)
- SERVICE TIRE PRESSURE SYSTEM (when equipped)
- TIRE PRESSURE UNAVAILABLE (when equipped)
- SET INHIBITED DUE TO MOTION (when equipped)

An audible chime or chimes will accompany any warning messages. Chime requests with an OPEN message are dependent upon vehicle speed.

The EVIC receives the following messages from the Body Control Module (BCM):
- Verification of US/Metric status
- Fuel Economy (Average and Instantaneous)
- Distance to empty
- Distance to service
- Driver warning messages
The EVIC receives the Vehicle Speed message from the powertrain control module.

The EVIC transmits the Current Display message to the BCM.

STEP BUTTON
Use the STEP Button to:

1. Sequentially select one of the displays or blank display in the following order:
- Average Fuel Economy
- Distance to Empty
- Distance to Service Message
- Off (Blank)
2. Set the magnetic variance zone when VARIANCE =X (X =1-15) is indicated in the VF Display.
3. Select the displayed programmable feature setting. (When equipped.)

MENU BUTTON (EVIC only)
Use the MENU button to sequentially step the EVIC through the programmable features.

RESET BUTTON
Use the RESET Button to:
1. Clear the trip functions that may be reset.
2. Enter and exit the diagnostic mode.

Pressing the RESET button once will clear the trip function displayed (except Distance to Service) and cause the EVIC to send a PCI Bus beep request to the BCM. If the RESET button is pressed again within 3 seconds, the EVIC will reset ALL of the trip functions. The trip function that may be reset is the Average Fuel Economy.

A reset will only occur if a trip function that may be reset is displayed. Distance to Service is reset in the customer programmable features.

TRAVELER DISPLAY FUNCTIONS
Using the STEP button will change the EVIC between modes of operation and display the appropriate information according to data received from the PCI Bus.

COMPASS
The EVIC displays the compass reading. The EVIC receives the compass information from the overhead console.

COMPASS OPERATION - ALL
Upon ignition on, if the calibration information stored in the CMTC memory is within the normal range, the CMTC will perform in slow Auto-Cal mode. In slow Auto-Cal mode, the CMTC continuously compensates for the slowly changing magnetic field of the vehicle. The compass module detects changes in the vehicle magnetism and makes appropriate internal corrections to ensure proper displayed direction. However, if the calibration information stored in the CMTC memory is not within the normal range at ignition on, the CMTC will enter fast Auto-Cal mode. Auto activation of the fast Auto-Cal mode occurs when the CMTC is subjected to high magnetic field strength levels, which cause all compass readings to be erroneous for a continuous period of five (5) minutes. During fast Auto-Cal, "COMPASS CALIBRATING" will display. Fast Auto-Cal can also be performed manually, by completing one 360 turn in an area free from large metal or metallic objects. When complete, the "COMPASS CALIBRATING" EVIC message will turn off and the compass will function normally.

SETTING MAGNETIC ZONE VARIANCE
Variance is the difference between magnetic North and geographic North. For proper compass function, the correct variance zone must be set. Refer to the Zone Variance map for the correct zone. Follow these steps to check or change the variance zone:

EVIC:
- The ignition switch must be in the On position and the EVIC display must not be blank.
- If the compass data is not displayed, step through until the compass information displays
- Press and bold the RESET button (approximately 5 seconds) until VARIANCE = XX is displayed The EVIC will display the variance zone stored in memory and the word VARIANCE.
- Use the RESET button to select the proper variance zone number, 1 through 15.
- After selecting the proper zone number, momentarily press and release the RESET button. The variance zone is then stored in the memory and the EVIC returns to normal operation.




COMPASS CALIBRATION
The compass module has 2 types of auto calibration; slow-cal and fast-cal. Slow-cal ensures that during normal vehicle operation the compass performs auto-calibration functions to keep the compass sensors in their proper operating range. Whenever the ignition is On the EVIC receives PCI Bus data indicating that engine RPM is greater than zero, auto-calibration is performed continuously. If the calibration information stored in the compass module memory is not within the normal range after a power-up cycle, the compass will display "COMPASS CALIBRATING." The EVIC will enter into the first-cal mode until calibration is complete. To enter the compass into Manual Calibration mod(', perform the following steps
- drive the vehicle to an area away from any large metal objects or overhead power lines.
- Ensure that the proper variance zone is selected. See Setting Magnetic Zone Van an cc.
- The ignition switch must be in the On position and the EVIC display must not be blank
- Press the STEP button until the Compos displays in the EVIC.
- Press and hold the RESET button approximately 10 seconds) until CAL is displayed, then release the button.
- Drive slowly less than 5 mph (8 km/ha) in at least 1 complete 360-degree circle.
- "COMPASS CALIBRATING" will remain illuminated to alert the driver than the compass is in the calibration mode.
- After calibration is complete, "COMPASS CALIBRATING" will turn off.

If the compass appear blank, unable to be calibrated, or the compass displays false indications, the vehicle must be demagnetized.


HOMELINK(R) UNIVERSAL TRANSMITTER
If equipped, the HomeLink(R) Universal Transmitter is integrated into the overhead console. For added security it will operate home security systems that use coded signals known generically as Rolling Codes. The overhead console display provides visual feedback to the driver, indicating which HomeLink(R) transmitter channel button is being pressed. The HomeLink(R) can learn and store up to three separate transmitter radio frequency codes to operate garage door openers, security gates, and security lighting. The HomeLink(R) buttons are marked with one, two, or three dots.

TIRE PRESSURE MONITORING SYSTEM (TPM)
If equipped with the Tire Pressure Monitoring System (TPM), each of the vehicles four wheels will have a valve stem with a pressure sensor and radio transmitter built in. Signals from the tire pressure Sensor/Transmitters are received and interpreted by the Electronic Vehicle Information Center (EVIC).

A Sensor/Transmitter in a mounted wheel will broadcast its detected pressure once per minute when the vehicle is moving faster than 20 mph (32 km/ha). Each Sensor/Transmitter's broadcast is uniquely coded so that the EVIC can determine the location.

TRAINING THE EVIC
The EVIC can be trained to recognize the source locations of the Sensor/Transmitter signals. The training procedure is given below:

1. From the Programmable Features List select RETRAIN TIRE SENSORS Y/N using the EVIC MENU button.
Use the STEP button to select and the MENU button to confirm YES. The EVIC will initiate the following procedure:
2. A display will prompt the user to: TRAIN DRIVER FRONT SENSOR. At this point the user must set the left front tire Sensor/Transmitter to learn mode by positioning a magnet (Relearn Magnet special tool 8821) over the valve stem for at least 5 seconds. The Sensor/Transmitter in the front left tire will transmit a message indicating to the EVIC that it is in learn mode. When the EVIC has received this message and is assured that it has learned an ID, the EVIC will request a horn chirp via a bus message and then display the next train request. Note: The EVIC will allow 60 seconds from the first train request display to the receipt of a unique learn ID message from the first Sensor/Transmitter and 30 seconds for each succeeding wheel. If either of these timers expires, the EVIC will abort the training procedure and revert to previous settings. The EVIC will not store one ID for multiple locations.
3. The EVIC will request the initiation of a training sequence for each tire, one-by-one in a clockwise direction around the vehicle (Left Front, Right Front, Right Rear, and Left Rear).

NOTE:
1. If one or all Sensor/Transmitters cannot be trained, move vehicle to avoid radio frequency interference.
2. If one Sensor/Transmitter still cannot be trained, replace it and retry.
3. If all Sensor/Transmitter still fail to train, replace the EVIC.
4. Once all tires are successfully learned, the previous set of stored IDs will be replaced by the new IDs, and the EVIC will display, "TRAINING COMPLETE" until a button is pressed.

If the vehicle is equipped with the HomeLink(R) feature and a HomeLink(R) button is pressed at any time during the training procedure, the EVIC Module will immediately exit the training procedure, discard any IDs learned in the current session and perform the HomeLink(R) function. After the button is released, the module will display "RETRAIN TIRE SENSORS NO".

The training procedure can be stopped at any time by pressing the C/T, STEP; RESET, or MENU button. When any of these buttons are pressed the EVIC will display "TRAINING ABORTED" until another button is pressed and then display "RETRAIN TIRE SENSORS? NO". Sensor/transmitter replacement or tire rotation will require retraining of the EVIC.







PRESSURE THRESHOLD
The EVIC will monitor the tire pressure signals from the tire Sensor/Transmitters and determine if any tire has gone below the low-pressure threshold or exceeded the high-pressure threshold. Refer to the table below:

CRITICAL AND NON-CRITICAL SYSTEM ALERTS

CRITICAL:
A critical alert will be triggered when a tire pressure has gone below or above a set threshold pressure. The EVIC will request a chime and then display "X TIRE(S) LOW PRESSURE" or TIRE(S) HIGH PRESSURE". "X" will be the number of tires reporting low or high pressure. The message will display for the duration of the current ignition cycle or until an EVIC button is pressed. If the display is removed without correcting the condition, it will reappear without a chime after 300 seconds to warn the driver of the low or high-pressure condition.

NON-CRITICAL:
A non-critical alert with no chime will be triggered when no signal is received from a Sensor/Transmitter or when a Sensor/Transmitter low battery condition is detected. The EVIC will display "SERVICE TIRE PRESS. SYSTEM."

SYSTEM FAULTS
There are two conditions that will cause a Tire Pressure Monitoring System fault to be set. All fault codes are associated with a specific wheel location.
1. If the EVIC detects a non-transmitting Sensor/Transmitter condition, it will:
A. Store an active fault code.
B. Request a chime.
C. Display "SERVICE TIRE PRESS. SYSTEM."
2. When the EVIC receives a Low Sensor/Transmitter battery report from a Sensor/Transmitter, it will:
A. Store an active fault code.
B. Request a chime.
C. Display "SERVICE TIRE PRESS. SYSTEM.
Use the DRBIII(R) Inputs/Outputs function to further isolate the specific concern. The DRBIII can be queried to determine the status and battery condition for each Sensor/Transmitter.

SPARE WHEEL AUTO-DETECT
If the spare tire is mounted on the vehicle, the EVIC will:
1. Detect the change after five minutes at or above 20 mph (ha2 km/ha))
2. Query driver: "SPARE TIRE IN USE'?" use the MENU button for YES, and the STEP button for NO. For YES, the EVIC will revert to the previous display and wait five hours. after five hours the EVIC will proceed as in the NO response below.
3. For a NO response, after 15 minutes the EVIC will display: "ALL 5 TIRES W/VEHICLE? Y" Use the STEP button to Select YES or NO and the MENU button to confirm. For a "YES" response, the EVIC will display "SERVICE TIRE PRESS SYSTEM". For a "NO" response. the EVIC will revert to previous display and display "ALL a TIRES W/VEHICLE? Y every time the ignition is cycled to RUN and the missing tire ID is not received.

DIAGNOSING AND CLEARING SYSTEM FAULTS
All Tire Pressure Monitoring System Faults are specific to one location. if a no-transmit. "low BATTERY" "LOW or HIGH PRESSURE" fault is detected, the location can be determined by the DRBIII(R). The appropriate Sensor/Transmitter can then be replaced or the out-of-specification pressure condition can be corrected.
- if a single Sensor/Transmitter cannot be detected by the EVIC. replace that Sensor/Transmitter.
- If none of the Sensor/Transmitters can be detected, refer to symptoms in the Tire Pressure Monitor section.
- If a BUCKET COUNTER test fails, and one or more Sensor/Transmitters does not transmit, replace the affected Sensor/Transmitter.
- If none of the Sensor/Transmitter causes the BUCKET COUNTER to advance. replace the EVIC.
- If the EVIC displays SERVICE TIRE PRESS. SYSTEM and the DRBIII(R)" sees no Sensor/Transmitter fault or pressure out of specification,
1. Attempt the Return procedure.
2. If the display reoccurs, replace the EVIC.

SYSTEM TEST
A test of the Tire Pressure Monitoring System can be initiated in the EVIC. The test sequence is as follows:
1. Perform the RETRAIN TIRE SENSORS procedure.
2. Press and hold the RESET and STEP bottoms or five seconds.
3. The EVIC will display BUCKET COUNTERS.
4. Drive the vehicle at 20 mph (32 km/hha0m) for at least 2 minutes.
5. The counters Will increase by one each time a Sensor/Transmitter signal is received by the EVIC.
6. Observe that the COUNTERS register at least 3 receptions for each Sensor/Transmitter.
7. Replace any Sensor/Transmitter that does not meet this specification.
8. The test will continue until any EVIC button is pressed or until the ignition is cycled to OFF.

COMPASS/MINI-TRIP COMPUTER
The Compass/Mini-Trip Computer (CMTC), which is located in the overhead console, supplements the standard vehicle instrumentation. The CMTC uses the Electronic Vehicle Information Center's (EVIC's) vacuum fluorescent (VF) display to supply the vehicle operator with:
- Compass heading.
- Average fuel economy.
- Distance to empty.
- Tire pressure (if equipped with TPM). The Overhead Console is also available with:
- An optional integrated Universal Garage Door Opener (UGDO) known as HomeLink(R).
- The three UGDO buttons are labeled with dots to indicate the channel number.
- An optional Tire Pressure Monitoring (TPM) System.
- Two optional sunroof switches (OPEN/CLOSE and VENT).
- A standard Liftgate switch.
The CMTC sends and receives data over the PCI bus, communicating with the:
- Body Control Module (BCM).
- The BCM supplies most of the information that the CMTC processes and that the EVIC displays.
- Powertrain Control Module (PCM)
- The PCM supplies ambient temperature sensor information.
- Integrated Power Module (IPM).
- EVIC.
- The EVIC receives all display requests, except for the internal compass function, over the PCI bus.

The CMTC receives Tire Pressure Monitoring System information via radio transmissions. The tire pressure sensors are mounted to the vehicle wheels. For complete information, refer to Tire Pressure Monitoring System under Electronic Vehicle Information Center (EVIC) in the General Information section of this publication.

VEHICLE INFORMATION DISPLAY

NOTE: The EVIC will not display information for any of the screens for which it did not receive the proper PCI bus data. Refer to the symptom list in the Overhead Console section for problems related to CMTC.

The EVIC provides the following CMTC display functions:
- Compass direction
- Distance to empty
- Average fuel economy
The EVIC will also display the following driver alert messages with either an amber or red priority indicator lamp:
- LOW TIRE PRESSURE (if equipped)
- HIGH TIRE PRESSURE (if equipped)
- TIRE PRESSURE UNAVAILABLE (if equipped)
- SERVICE TIRE PRESSURE SYSTEM (if equipped)

An audible chime or chimes will accompany any displayed warning messages. Chime requests with an OPEN message are dependent upon vehicle speed.

The CMTC receives the following messages from the Body Control Module (BCM):
- Verification of US/Metric status
- Dimming brightness and exterior lamp status
- Fuel Economy Average
- Distance to Empty

The CMTC receives the following messages from the Next Generation Controller (NGC):
- Trip Odometer data
- Vehicle Speed
The CMTC transmits the following message to the BCM:
- Status Request: Beep, Reset
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