Network Message Chart - Reconfigurable Telltales (RTTs)

The Reconfigurable Telltales (RTTs) are illuminated or displayed in the IPC when the IPC receives messaged inputs from other modules on the CAN, due to system faults detected, system status changes or for driver information. The IPC communicates on the HS-CAN3. If the originating module communicates on a network other than the HS-CAN3, the messaged signals are sent to the GWM first, then to the IPC.

Indicator	Telltale/RTT (T, RTT or Both)	Network Message	Originating Module	Originating CAN	Receiving Module
ABS warning	RTT	ABS warning indicator request	ABS module	FD-CAN	IPC
Airbag warning	RTT	Airbag waring indicator status	RCM	HS-CAN2	IPC
Auto high beam	RTT	Auto high beam indicator request	IPMA	FD-CAN	IPC
Auto hold	RTT	Auto hold mode indicator	ABS module	FD-CAN	IPC
BLIS off	RTT	CTA left sensor status Side obstacle detect status-left Side obstacle sensor status-left BLIS trailer tow status-left	IPMA	FD-CAN	IPC
BLIS off	RTT	CTA right sensor status Side obstacle detect status-right Side obstacle sensor status-right BLIS trailer tow status-right	IPMA	FD-CAN	IPC
Brake warning/low brake fluid warning/parking brake	RTT	Brake (red) warning indicator request	ABS module	FD-CAN	IPC
		Park brake active status	ABS module	FD-CAN	IPC
		Brake warning indicator request	BCM	HS-CAN1	IPC
Charging system warning	RTT	Battery low state of charge	BCM	HS-CAN1	IPC
Cruise control/ACC/set speed display, speed limiter (except North America)	RTT	Cruise control status Cruise control override Cruise control set speed display	PCM	FD-CAN	IPC
Door, hood compartment, liftgate ajar	RTT	Driver door ajar status Passenger door ajar status Right rear door ajar status Left rear door ajar status Hood ajar status Liftgate ajar status	BCM	HS-CAN1	IPC
Electric parking brake	RTT	Parking brake (yellow) lamp request	ABS module	FD-CAN	IPC
Forward collision warning	RTT	Forward collision warning indicator request	IPMA	FD-CAN	IPC
Frost warning	RTT	Outside air temperature status	HVAC module	MS-CAN	IPC
Hazard - system failure	RTT	HEV transmission warning indicator request	SOBDMC	FD-CAN	IPC
Hazard - system failure	RTT	HEV battery warning indicator request	BECM	HS-CAN1	IPC
High beam	RTT	Headlamp high beam status	BCM	HS-CAN1	IPC
Hill start assist	RTT	Hill start assist status	ABS module	FD-CAN	IPC
Lane Centering Assist (LCA)	RTT	Traffic jam assist status	IPMA	FD-CAN	IPC
Lane Keeping System (LKS)	RTT	Lane keeping system status display	IPMA	FD-CAN	IPC
LED low beam malfunction	RTT	Headlamp low beam out	BCM	HS-CAN1	IPC
Lights on	RTT	Parklamp status	BCM	HS-CAN1	IPC
Limited/severely limited performance	RTT	Battery performance warning indicator	SOBDMC	FD-CAN	IPC
Motor over-temperature	RTT	Engine coolant temperature data Engine overheat indication request	PCM	FD-CAN	IPC
Powertrain malfunction (wrench) warning	RTT	Engine service required	PCM	FD-CAN	IPC
		Transmission service required	SOBDMC	FD-CAN
		AWD service required	PCM	FD-CAN
		Body service required	BCM	HS-CAN1
Ready to drive	RTT	Ready to drive indication request	SOBDMC	FD-CAN	IPC
Rear seatbelt monitor	RTT	Driver rear seatbelt buckle status Passenger rear seatbelt buckle status Rear center seatbelt buckle status	RCM	HS-CAN2	IPC
Seatbelt/Belt-Minder	RTT	Driver seatbelt buckle status Passenger seatbelt buckle status	RCM	HS-CAN2	IPC
Speed sign recognition	RTT	Traffic sign recognition message request	IPMA	FD-CAN	IPC
Stability-traction control (sliding car icon)	RTT	Stability-traction control indicator request	ABS module	FD-CAN	IPC
Stability-traction control disabled (sliding car OFF icon)	RTT	Stability-traction control disabled indicator request	ABS module	FD-CAN	IPC
TPMS	RTT	Tire pressure warning indicator	BCM	HS-CAN1	IPC
Turn indicator (LH/ RH)	RTT	Left turn lamp on request Right turn lamp on request	BCM	HS-CAN1	IPC
Vehicle plugged in (charge cable connected)	RTT	Check plug to start display request	SOBDMC	FD-CAN	IPC
Vehicle plugged in (charge cable connected)	RTT	Charge cord connection status	SOBDMC	FD-CAN	IPC