My 350hv just shuts off randomly. I can arm it and come back later and it is off and my doors are unlocked!

Not sure what the gear light panel is. A flashing light usually indicates the alarm system is armed.

fix door switches

be looking for a bad body switch at any of the doors..one may be out of adjustment..or a relay may be going out..

See dealer and they can disarm the security system for you.

Yes, it needs to be reset. When your battery drained it was equal to a battery disconnect. And that arms the system.

Either the system is in valet or, the chirps have been deleted or, the siren is broken.
If the LED is on solid the system is in valet. open the door, press lock, unlock, lock on the remote to remove valet.
Press and hold the lock button. This activates the car finder/panic. The siren should begin to wail. If it does, the siren works. If it doesn't and all you see is the aprking lights flashing the siren is defective.

There are two relays that control the locks. One controls locking, the other unlocking. One of those could be defective. Replace one. If that corrects the problemyou are good to go. Do not discard the old relay yet. If the problem persists replace the other existing relay with the old on you just removed. I believe the lock relay actually works through the unlock relay or vice versa.

Two tips:
* If your anti-theft system is sounding (horn honking/lights flashing)you press the panic button on your key fob to shut it off.

* If your anti-theft system is armed (but not triggered) it is disarmed when you unlock the door(s) using your unlock button on your keyfob, the key pad on the driver's door, or your key.

Hope help with this. Good luck (remember rated this).

change the part that its not comfortable in yore buzzer

Seems like a problem with the Alarm. First disconnect the Alarm and if problem still persists then will have to trace step by step for a loose connection or relay malfunction.

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