Post Crash Alert Feature

2011 Mercury Mariner Premier, 2.5 7, AWDSECTION Post Crash Alert Feature

The post crash alert is a function controlled by the SJB. If the Restraints Control Module (RCM) determines an impact of enough severity (the air bags may or may not be deployed), the post crash alert function is activated. The post-crash alert function activates the hazard lamp function and cycles the horn on 3 times, then off for 4 seconds, and repeats this cycle until the battery is discharged or the function is turned off. The post crash alert function can be turned off by:

  • pressing the hazard flasher lamp switch (which may need to be pressed twice).
  • pressing the RKE  transmitter UNLOCK button.
  • pressing the RKE  transmitter PANIC button.
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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.