RTT Indicators

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: It is important to view each of the cluster options in the Overview to identify which IPC uses a specific RTT.

Refer to: Instrument Panel Cluster (IPC) - Overview .

4WD (2H, 4L, 4H And 4A)

The IPC provides RTT indicators to inform the driver of the status of the 4WD system state. The IPC receives the 4x2, 4x4 high, 4x4 low and 4x4 auto status messages from the GWM over the HS-CAN3. The GWM receives the 4x2, 4x4 high, 4x4 low and 4x4 auto status messages from the PCM over the HS-CAN1.

Auto High Beam

The IPC provides the auto high beam RTT to inform the driver the auto high beam function is turned on and the high beam status may automatically change. The IPC receives the auto high beam status display message from the GWM over the HS-CAN3. The GWM receives the high beam status display message from the IPMA over the HS-CAN1.

Auto Stop-Start

The IPC provides the auto stop-start RTT along with multiple messages displayed at various times throughout the auto stop-start system operation to inform the driver of the system status and to provide direction for the driver intervention required. The IPC receives the stop-start mode indicator message request from the GWM over the HS-CAN1. The GWM receives the stop-start mode indicator message request from the PCM over the HS-CAN3.

The auto stop-start indicator informs the driver of the following states:

Indicator Status	System Status
Solid green	The auto stop-start feature has temporarily turned off the engine.
Solid amber	A stop-start system concern exists.
Flash in either green or amber	A system state as determined by the PCM.
Grayed out (mid-level and high-level IPC)	Indicates the auto stop-start feature is not available.

The IPC receives the stop/start indicator request from the GWM over the HS-CAN3. The GWM receives the auto stop/start indicator request from the PCM over the HS-CAN1.

Blind Spot Monitoring System (BLIS) Off

The IPC provides a RTT to inform the driver the Blind Spot Monitoring System (BLIS ®) is turned off.

The GWM receives the cross traffic alert left status and cross traffic alert right status messages from the SODL and SODR over the MS-CAN.

The IPC receives the cross traffic alert left status and cross traffic alert right status messages from the GWM over the HS-CAN3.

Charging System Message Center Displays

The IPC provides a charging system RTT along with message displays indicating the status of the charging system. When a fault is present in the charging system, the BCM sends the battery low state of charge message to display message center warning messages and the charging system RTT.

The IPC receives the battery low state of charge message from the GWM over the HS-CAN3. The GWM receives the battery low state of charge message from the BCM over the HS-CAN1.

Cruise Control

The cruise control RTT informs the driver of the cruise control status (off, active or standby). When off, the cruise control RTT is not displayed. When the cruise control system is active, the cruise control RTT turns green and turns gray when in standby.

The IPC uses cruise control status, cruise control set speed and cruise control override messaged inputs to control the cruise control RTT.

The IPC receives the cruise control status, cruise control set speed and cruise control override messages from the GWM over the HS-CAN3.

The GWM receives the cruise control status, cruise control set speed and cruise control override messages from the PCM over the HS-CAN1.

Door Ajar

The IPC provides a door ajar RTT along with message displays to indicate the status of the doors. The BCM monitors each of the ajar inputs (driver, passenger, left rear and right rear) and sends a door ajar status (driver door ajar status, passenger door ajar status, left rear door ajar status or right rear door ajar status) message to the GWM over the HS-CAN1. The IPC receives the driver door ajar status, passenger door ajar status, left rear door ajar status or right rear door ajar status messages from the GWM over the HS-CAN3 to display the specific ajar RTT and corresponding warning message.

Electronic Park Brake

The electronic park brake indicator indicates a fault in the electronic park brake system. The IPC receives the electronic park brake (yellow) indicator request from the GWM over the HS-CAN3. The GWM receives the electronic park brake (yellow) indicator request from the EPB module over the HS-CAN2.

ELD

The IPC receives the rear differential lock status message from the GWM over the HS-CAN3. The GWM receives the rear differential lock status message from the TCCM over the HS-CAN1.

If the vehicle is shifted into ELD mode, the TCCM sends the IPC the rear differential lock status message to illuminate the ELD indicator. If the vehicle is shifted out of ELD mode, the TCCM sends the IPC the rear differential lock status message to turn off the ELD indicator, informing the driver the vehicle has shifted out of ELD mode.

Engine Over-Temperature

The IPC provides the engine over-temperature RTT to alert the driver the engine is over temperature. The IPC receives the engine overheat indication request and the engine coolant temperature data from the GWM over the HS-CAN3. The GWM receives the engine overheat indication request and the engine over-temperature message from the PCM over the HS-CAN1.

Front Fog Lamp

The front fog lamp indicator informs the driver that the front fog lamps are turned on. The IPC receives the front fog lamp indicator request from the GWM over the HS-CAN3. The GWM receives the front fog lamp indicator request from the BCM module over the HS-CAN1.

Hill Descent

The IPC provides the hill descent RTT to indicate to the driver that the hill descent control is on. The IPC receives the hill descent mode message from the GWM over the HS-CAN3. The GWM receives the hill descent mode message from ABS module over the HS-CAN2.

Lane Keeping System Off

The IPC provides the lane keeping system off RTT to indicate the lane keeping system has been turned off or is disabled due to a fault condition. The IPC receives the lane keeping indicator request from the GWM over the HS-CAN3. The GWM receives the lane keeping indicator request from the IPMA over the HS-CAN2.

LH - RH Turn Signal/Hazard

When the multifunction switch is in the LH or RH turn position or if the hazard switch is on, the BCM sends the right turn lamp on request, the left turn lamp on request or both messages to the GWM over the HS-CAN1. The GWM sends the right turn lamp on request, the left turn lamp on request or both messages to the IPC over the HS-CAN3. Upon receipt of the applicable turn signal on/off data, the IPC flashes the turn signal RTT on and off.

Lights On

When the parking lamps are turned on, the BCM sends the parklamp status message to the GWM over the HS-CAN1. The IPC receives the parklamp status message from the GWM over the HS-CAN3 to illuminate the lights on RTT.

Low Fuel

The IPC provides the low fuel RTT indicator in 2 colors, amber and red. The IPC uses both the hardwired fuel level input and the calculated DTE to control the low fuel RTT. The low fuel RTT illuminates whenever the remaining fuel level is below 1/16 of a tank or DTE of 60 km (37 miles) (administrator key) or below 1/8 tank or DTE of 100 km (62 miles (MyKey ® key)).

Low Oil Pressure

The IPC uses the oil pressure warning indicator request and engine RPM data to control the low oil pressure indicator. The engine oil pressure switch is hardwired to the PCM. The PCM provides the oil pressure warning indicator request and the engine RPM data to the GWM over the HS-CAN1. The GWM provides the oil pressure warning indicator request and engine RPM data to the IPC over the HS-CAN3. The IPC requires engine RPM above 400 RPM before the message center displays the low oil pressure RTT.

Powertrain Malfunction (Wrench)

The IPC provides a powertrain malfunction (wrench) message center RTT to indicate transmission, Electronic Throttle Control (ETC), 4WD, and BCM concerns.

The IPC receives all the required messages from the GWM over the HS-CAN3.

The GWM receives the transmission service required and engine service required messages from the PCM over the HS-CAN1.

The GWM receives the 4WD service required message from the TCCM over the HS-CAN2.

The GWM receives the body service required message from the BCM over the HS-CAN1.

PRNDL/Progressive Range Select And SelectShift ®

The progressive range select display provides a numerical display of the lower transmission ranges and indicates to the driver which gear is currently selected when the driver has manually shifted to a lower range (1, 2, 3, 4, 5 or 6). The SelectShift ® display indicates to the driver which gear is currently selected when the transmission is in the SelectShift ® mode. When the transmission is in SelectShift ® mode, the gear number is displayed in the SelectShift ® display area.

For additional information related to the progressive range select or SelectShift ® features, refer to the Owner's Literature.

The IPC uses the following messages to control the PRNDL/progressive range select and SelectShift ® indication.

Transport mode
Transmission gear display
Transmission shift mode display
Power shed level request
Vehicle speed

The IPC receives the transmission gear position, transmission shift mode display and vehicle speed messages from the GWM over the HS-CAN3. The GWM receives the transmission gear position, transmission shift mode display and vehicle speed messages from the PCM over the HS-CAN1.

The IPC receives the transport mode and power shed level request messages from the GWM over the HS-CAN3. The GWM receives the transport mode and power shed level request messages from the BCM over the HS-CAN1.

The IPC also uses a park detect switch (part of the selector lever) input to signal the IPC the shift lever is fully seated in the PARK (P) position. The IPC compares the park detect switch input with the park status in the transmission gear position message sent from the PCM. The IPC provides a battery reference voltage to the park detect switch. When the selector lever is in PARK (P), the park detect switch routes the reference voltage to ground, pulling the circuit low to the IPC. When the selector lever is moved out of PARK (P), the park detect switch opens to ground, sending the reference voltage high.

Sport Mode And Tow Haul

The sport mode and tow haul RTT indicators inform the driver the transmission is operating in either sport mode or tow haul mode based on the driver requested input. The IPC receives the powertrain drive mode status message from the GWM over the HS-CAN3. The GWM receives the powertrain drive mode status message from the PCM over the HS-CAN1.

Stability-Traction Control Disabled RTT (Sliding Car OFF Icon)

When the driver enables or disables the stability-traction control system, the ABS module sends the stability-traction control disabled indicator request message to the GWM over the HS-CAN2. The GWM sends the stability-traction control disabled indicator request message to the IPC over the HS-CAN3 to illuminate or turn off the stability-traction control disabled RTT (sliding car OFF icon) based upon the system state.

Refer to ABS/Brake/Stability-Traction Control System Indication description for information on the conditions when the stability-traction control disabled indicator (sliding car OFF icon) is turned on.

When a MyKey ® administrator has set the AdvanceTrac ® feature to always on and a MyKey ® programmed key is in use, the stability-traction control system cannot be disabled. The menu selection in the message center used to disable the stability-traction control system does not display when a MyKey ® is in use, but remains active for the MyKey ® administrator to select the AdvanceTrac ® always on feature off. The stability-traction control indicator still functions normally to indicate a stability-traction control system fault and a stability-traction control active event.

Refer to ABS/Brake/Stability-Traction Control System Indication description for information on the conditions when the stability-traction control RTT (sliding car Off icon) is turned on. Refer to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

Stability-Traction Control RTT (Sliding Car Icon)

The IPC receives the stability-traction control indicator request message from the GWM over the HS-CAN3. The GWM receives the stability-traction control indicator request message from the ABS over the HS-CAN2.

TPMS

The IPC receives the tire pressure warning indicator message from the GWM over the HS-CAN3. The GWM receives the tire pressure warning indicator message from the BCM over the HS-CAN1.

If the BCM determines the tire pressure has exceeded the low tire pressure limits, the tire pressure warning indicator request message is sent to the IPC to illuminate the TPMS RTT.

If a TPMS monitor or sensor fault condition exists, the BCM sends the tire pressure warning indicator request message to the IPC to flash the TPMS RTT. The IPC flashes the TPMS warning indicator for 75 seconds then turns the indicator on solid.