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Home >> Ford >> 2021 >> Expedition SSV, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrumentation, Message Center And Warning Chimes (1 Of 2) >> Description And Operation >> Warning Chimes - System Operation and Component Description >> System Operation >> Cross Traffic Alert (CTA) Warning Chime

Cross Traffic Alert (CTA) Warning Chime

The Cross Traffic Alert (CTA) warning chime sounds to alert the driver that a vehicle has been detected or that there is a system fault. The Cross Traffic Alert (CTA) warning chime sounds a 0.25-second chime continuously until the request is ended. The active park assist chime sounds through the rear speakers.

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

The GWM receives the CTA left status, the cross traffic left sensor status and the side obstacle left sensor status and side obstacle status-left messages from the SODL over the MS-CAN.

The GWM receives the CTA right status, the cross traffic right sensor status, the side obstacle right sensor status and side obstacle status-right messages from the SODR over the MS-CAN.

When a chime request is received, the IPC sends the IPC chime request message to the ACM or DSP to sound the chime.