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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2281 (Supplemental Restraint System - Description And Operation, Diagnosis And Testing - DTC And Symptom Indexes) >> Description And Operation >> Airbag and Seatbelt Pretensioner Supplemental Restraint System (SRS) - System Operation and Component Description >> System Operation >> SOS Post-Crash Alert System™

SOS Post-Crash Alert System™

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

The SOS Post-Crash Alert System™ is controlled by the BCM, but initiated by the RCM.

When a deployment or fuel cutoff event occurs, the RCM sends a message on the HS-CAN2 to the BCM. The BCM flashes the turn signal lamps and sounds the horn (except when 911 Assist™ is active) until it is turned off. The system can be turned off 10 seconds after a crash event by pressing the hazard switch. The BCM also unlocks the doors and illuminates the courtesy lamps after a crash event.

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