Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Post Crash Alert
If the Restraints Control Module (RCM) determines an impact of severity enough to deploy air bags has occurred (the air bags may or may not be deployed by the RCM ), the RCM sends a message to the Instrument Cluster (IC) over the High Speed Controller Area Network (HS-CAN). The IC then sends the message to the SJB over the Medium Speed Controller Area Network (MS-CAN). Once this message is received, the SJB activates the post crash alert function by cycling the horn on 3 times, then off for 4 seconds, then on 3 times, etc., in this cycle until the battery discharges or the function is turned off. The hazard lights also flash with the horn sounding, but keeps flashing during the horn off cycle.
The post crash alert function can be turned off by:
- pressing the RKE transmitter PANIC button.
- pressing the RKE transmitter UNLOCK button.
- pressing the hazard switch (which may need to be pressed more than once)
This feature acts similar to a perimeter alarm which is a feature on this vehicle. Turning the ignition to the ON position does not deactivate this function, but deactivates an activated perimeter alarm.
The post crash alert function cannot be configured off.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.