Message Center Displays
The message center is controlled through the RH steering wheel switches. The IPC receives the steering wheel message center switch data from the GWM over the HS-CAN3. The GWM receives the steering wheel message center switch data from the SCCM over the HS-CAN2. For additional information about the message center controls, refer to the Owner Literature.
Active Driver Assist System
The active driver assist system display is located in the lower center portion of the IPC within the speedometer display area but changes location to the LH side when a message center menu is selected. Refer to: Instrument Panel Cluster (IPC) - System Operation and Component Description .(413-01 Instrumentation, Message Center and Warning Chimes, Description and Operation).
The ACC display provides the gap and follow distance (as a graphical distance display with bars on the road) as well as the set speed (shown above the ACC RTT indicator).
The lane keeping system combines the lane keeping alert and lane keeping aid systems. The lane keeping alert system alerts the driver of unintentional drifting outside of the lane and the lane keeping aid system corrects the vehicle steering to keep the vehicle in the center of the lane. The IPC provides a lane keeping display with a view of the vehicle in the middle of a lane with right and left lane markers to indicate the vehicle position with relation to the lane markings. The lane markers change color based on the systems status with regard to vehicle intervention to keep the vehicle in the center of the lane and provides warning messages to alert the driver when they are drifting out of their lane or need to place their hands on the steering wheel. In addition, the IPC provides a lane keeping system off RTT indicator to inform the driver that the lane keeping system is turned off. When the lane keeping system is turned off, the IPC turns on the lane keeping system RTT and turns off the lane keeping system status display. For additional information on the lane keeping system operation, Refer to: Lane Keeping System - System Operation and Component Description .(419-07 Lane Keeping System, Description and Operation).
The stop and go feature (part of the ACC) provides message displays to indicate the vehicle is stopped and to press resume to engage the cruise control again.
The IPC receives all the messages required to display the active driver assist system display from the GWM over the HS-CAN3.
Adaptive Cruise Control
The adaptive cruise control display is part of the Active Driver Assist System display. The IPC receives the cruise control set speed display and the adaptive cruise control gap distance display messages from the GWM over the HS-CAN3. The GWM receives the cruise control set speed display message from the PCM over the HS-CAN1. The GWM receives the adaptive cruise control gap distance display message from the CCM over the HS-CAN2.
Compass Display
The compass is displayed as a 1 or 2 character or as a virtual compass ball with the 1 or 2 character display inside the ball. The IPC receives the GPS compass direction from the GWM over the HS-CAN3. The GWM receives the GPS compass direction from the APIM over the MS-CAN.
Digital Speedometer
The IPC provides a digital speedometer display to indicate vehicle speed in a digital format. The digital speedometer display operates using the same vehicle speed input used to control the cruise control set speed display.
The IPC receives the cruise control set speed display message from the GWM over the HS-CAN3. The GWM receives the cruise control set speed display message from the PCM over the HS-CAN1.
DTE/Average Fuel Economy (AFE)
The DTE is calculated in the IPC using the Running Average Fuel Economy (RAFE), which is the fuel economy over approximately the last 480 km (300 miles), and the fuel level input from the fuel sender(s) to determine how many kilometers the vehicle can be driven based on the remaining fuel in the tank. The DTE can vary in the short term by up to 80 km (50 miles), but is usually within 16 km (10 miles). Even if the fuel economy is relatively constant, the DTE can be off over a 80 km (50 mile) range by -24% to +38%. The DTE display and the fuel gauge both use the fuel level input from the fuel tank to provide their respective functions. If the fuel gauge doesn't function correctly, both the fuel gauge and the DTE display are affected.
The IPC defaults to a preset baseline mpg when the battery is initially connected and changes based on driving habits and conditions.
Since the DTE is calculated and averaged over a longer period of time (480 km [300 miles]), varying driving conditions can have a significant impact on the current or short term DTE as opposed to the displayed DTE. This difference often leads to customer complaints of incorrect or invalid DTE. The following list provides some (not all) of the driving conditions that may lead to an incorrect or fluctuating DTE concern:
- Changing between towing/not towing
- Changing driving between city and highway
- Allowing the vehicle to idle for long periods of time
- Using the remote start feature frequently to allow the vehicle to warm up, particularly when parked on a grade
- Parking or driving on grades
- Inconsistent use of gasoline or E85 fuels
- Over-fueling or not filling the tank completely (partial refueling)
The IPC uses the following network messages to control the DTE/Average Fuel Economy (AFE).
- Engine rpm data
- Fuel alcohol percent
- Fuel flow volume display
- Ignition key type
- Odometer count
- Power pack torque status
- Transport mode
- Vehicle speed
The IPC receives all messages from the GWM over the HS-CAN3. The GWM receives the transport mode and ignition key type messages from the BCM over the HS-CAN1 and the fuel alcohol percent, fuel flow volume display, engine rpm data, power pack, vehicle speed and the odometer count messages from the PCM over the HS-CAN1.
Information On Demand
The information on demand display provides the driver with access to view vehicle status such as trip information, fuel economy information, tire pressure status and trailer information.
The IPC receives all the messages required to display the information on demand display from the GWM over the HS-CAN3.
Message Center, Audio, HUD (If Equipped) And Navigation Menus
The IPC provides message center, audio, HUD (if equipped) and navigation menus. When a menu is selected, the selected menu may temporarily replace a display to provide the driver with the ability to navigate the selected menu. Once the driver has exited the menu selection, the previously selected displays return.
Lane Keeping System
The lane keeping system status display is part of the Active Driver Assist System display. The IPC receives both the lane keeping system status display message and the lane keeping system switch status message from the GWM over the HS-CAN3.
The GWM receives the lane keeping system status display message and the lane keeping system switch status message from the IPMA over the HS-CAN2.
MyKey® Function Message Displays
The IPC provides message center displays for the MyKey® feature. MyKey® displays are controlled through the IPC software based on the MyKey® settings configured through the message center and the type of key in use (MyKey® or administrator key). The MyKey® function also uses other messages received by the IPC for other indications such as vehicle speed for speed limiter displays.
Odometer
The IPC receives the odometer count message from the GWM over the HS-CAN3. The GWM receives the odometer count from the PCM over the HS-CAN1. The IPC monitors the odometer count input from the GWM and commands the odometer with a digital display in the message center.
Oil Life Message Center Display
The instrument cluster provides warning messages to inform the driver about the oil life status, oil life reset status and when an oil change is required. The duration of the interval between oil changes is calculated in the PCM and varies due to driving conditions. The PCM assumes a base mileage of 16, 090 km (10, 000 mi) or 1 year (gas engines) or 18, 500 km (11, 470 mi) (diesel engine) for normal driving. However, this number is adjusted down for conditions such as high engine temperature, high engine rpm, use of flex fuel, engine hours (diesel engines), oil dilution (diesel), engine torque (diesel), oil temperature (diesel) and possibly low oil level. The PCM calculates and provides the engine oil life percent message to the IPC. The IPC further converts the remaining oil life using the driver's configured oil life start value and displays the oil life percentage, indicating the remaining oil life. The oil change minder can be reset at any time by the driver.
The IPC receives the engine oil life message from the GWM over the HS-CAN3. The GWM receives the engine oil life message from the PCM over the HS-CAN1.
The PCM receives the engine oil life data reset message from the GWM over the HS-CAN1. The GWM receives the engine oil life data reset message from the IPC over the HS-CAN3.
Outside Air Temperature
The Ambient Air Temperature (AAT) sensor is hardwired to the PCM through separate input and return circuits. The PCM provides a reference voltage to the Ambient Air Temperature (AAT) sensor and monitors the change in voltage resulting from changes in resistance as determined by outside air temperature.
The FCIM is programmed to filter and update the messaged ambient air temperature data at different rates depending on several criteria (current engine temperature, engine off time and vehicle speed) to prevent false temperature displays due to a condition known as heat soaking. Heat soaking is where the outside air temperature is hotter in the location of the Ambient Air Temperature (AAT) sensor than the actual outside air temperature.
The PCM sends the ambient air temperature data to the GWM through the HS-CAN1. The GWM sends the raw ambient air temperature data message to the FCIM over the MS-CAN. The FCIM filters the data and sends the filtered ambient air temperature data to the IPC over the HS-CAN3.
Selectable Drive/Off Road Modes
The IPC provides the following selectable drive mode displays to indicate which mode has been selected. For additional information on the selectable drive mode feature, refer to the appropriate Anti-Lock Brake System (ABS) and Stability Control information.
- Normal
- Conserve
- Excite
- Slippery
- Deep conditions
The IPC provides the following selectable drive off road mode displays:
- Slow climb (vehicle pitch, roll and steering angle indication)
- Deep sand (vehicle pitch, roll and steering angle indication)
Selectable Drive/Off Road Modes
| Item | Description |
|---|---|
| 1 | Pitch indication (in degrees) |
| 2 | Steering angle (in degrees) |
| 3 | Roll indication (in degrees) |
The IPC receives the selectable drive mode request and selectable drive mode status messages from the GWM over the HS-CAN3.
For the selectable drive modes, the GWM receives the selectable drive mode request and selectable drive mode status messages from the ABS module over the HS-CAN2.
For the selectable drive off road modes, GWM receives the hill descent message request, vehicle pitch angle display, vehicle roll angle display and steering angle display messages from the ABS module over the HS-CAN2.
TPMS
The IPC provides a message center display showing each tire on a vehicle image to indicate specific tire pressures.
The IPC receives the tire pressure system status and tire pressure placard data messages from the GWM over the HS-CAN3. The GWM receives the tire pressure system status and tire pressure placard data messages from the BCM over the HS-CAN1.
Trailer Information
The trailer information function, located in the towing tab, allows the driver to save up to ten trailers, name the trailers and track or reset their mileage. When a trailer is connected to the vehicle, the trailer information screens display the information for the most recently connected trailer. The user can change the active trailer to another named trailer or create and name a new trailer. If the user chooses not to name a trailer, a default trailer is provided. This feature also provides step-by-step instruction for connecting standard trailers.
The IPC uses the following inputs to display the trailer information.
- BLIS trailer tow left status
- BLIS trailer tow right status
- Gear lever position
- Ignition status
- Odometer count
- Trailer reverse message request
- Trailer setup
- Transport mode
- Vehicle speed
The IPC receives all messaged inputs from the GWM over the HS-CAN3.
The GWM receives the odometer count, gear lever position and vehicle speed messages from the PCM over the HS-CAN1.
The GWM receives the transport mode and ignition status messages from the BCM over the HS-CAN1.
The GWM receives the trailer reverse message request messages from the IPMB over the HS-CAN2.
The GWM receives the BLIS trailer tow left status and BLIS trailer tow right status messages from the SODL and SODR, respectively, over the MS-CAN.