Security System Sounds or May Not Set – 2014-2016 Acura MDX

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Service Bulletin
September 18, 2015
02365 Version 1


Security System Sounds or May Not Set



Year Model Trim VIN Range
2014–15 MDX ALL ALL
2016 MDX ALL 2WD 5FRYD3H..GB000001 to 5FRYD3H..GB007326
2016 MDX ALL SH-AWD 5FRYD4H..GB000001 to 5FRYD4H..GB029373



The factory security system may sound on its own or the system may not set.  The client may also notice that the horn does not sound or the lights do not flash when setting the alarm (security system is not set).



Excessive clearance in the hood latch causes the hood latch switch to indicate the hood is open when it is not.



Replace the hood latch assembly.



Part Name Part Number Quantity
Hood Latch Assembly 74120-TZ5-A01 1



The normal warranty applies.

Operation Number Description Flat Rate Time Template ID Failed Part Number
8121E5 Replace hood latch assembly. (includes HDS diagnosis)          0.4 hr       15-046N 74120-TZ5-A01


Defect Code: 03214
Symptom Code: 03217
Skill Level: Repair Technician



  1. If the client complaint is alarm goes off by itself, check the security system history data using the HDS. If the Alarm Device shows Security Hood Switch, go to REPAIR PROCEDURE.  If the history data does not show Security Hood Switch, this bulletin does not apply.

Security Hood Switch

  1. If the client complaint is “Security system will not arm”, “Parking lights do not flash when setting security system”, or “No feedback beep when pressing the lock button twice”.  Duplicate the complaint, then check the Body Electrical Data List using the HDS with the hood closed.  If the Security Hood Switch signal reads ON (green) go to REPAIR PROCEDURE.  If the Security Hood Switch OFF (red), this bulletin does not apply

Security Hood Switch



  1. Remove the front bulkhead cover. Starting on the passenger side, lift up the far edge of the cover.

front bulkhead cover

  1. Using even, upward pressure, continue releasing the fasteners, working your way toward the driver’s side of the cover.

NOTE: Make sure all of the fasteners remain in place.

  1. Remove the hood latch:
    • Disconnect the hood opener cable from the latch.
    • Disconnect the hood latch switch connector.

hood latch

  1. Install the new hood latch in the reverse order of the removal, and apply multipurpose grease as indicated.

apply multipurpose grease

  1. Reinstall the bulkhead cover into position in the reverse order of removal, then press down firmly at each of the 10 fasteners locations until you hear a click.



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