Anti theft lock turn off

SOURCE: Alarm haywire, can't override anti-theft system or turn on car

The Alarm on my Mercedes ML320 sounded every night, then it started doing it more often, Showed it to the dealer he says it's the 'Tow Sensor', that needs to be repaced. $700, down the drain. I have already started hating this car, it eats $500-600, every 6 months...

SOURCE: Several months ago I began experiencing a

jimmy: it sounds like the drivers door unlock tamper switch or the other switch may have failed. One side can affect the other under certain circumstances. Your trunk lock also has a switch which arms and disarms the antitheft system. Try locking all the doors, make sure the hood and trunk lid are closed and then open the trunk. Leave it open open the drivers door and try to start the car.
If it's a no start. Disconnect the ground battery cable then put the ignition key in the run position in you ignition switch. Reconnect the battery and try to start the car. It should start. This usually will override the anti theft system. One issue with this will be, whether the antitheft system will remain disarmed.
Although I have never tried this before, I know that the system will not arm unless all the doors, trunk and the hood are closed.
I could suggest this to try if the car starts as I had told you pertaining to disconnecting the battery cable, I would take the switch and unbolt it from the passenger's side of the engine compartment just forward of the shock tower. Just let it sit somewhere so it doesn't get caught up in anything moving. If there is a light under the hood of your car, remove the bulb.
Let me know how you make out.

SOURCE: Ford F150 remote key does not work after car battery

Should not have happened,
For the Factory RKE ( Remote Keyless Entry ) have you tried reprogramming the key fobs to your truck. The procedure is in the owners manual ( need all of them at programming time ).
This is stored in NVR, and should not need to be done, but worth a try.

If this is an aftermarket Remote start / alarm, check the owners manual for t on battery replacement. Have seen some off brand with strange battery ( truck's battery that is ) replacement steps.

SOURCE: anti-theft on, I tried to use remote to open

You need to reprogram the security system.

SOURCE: doors locked so broke into

It should be the same key for both and if u unlock the trunk with key the alarm should turn off so you can start . had the same problem . worse comes to worse have a key made at dealership or a portable locksmith come to you. about 80 for a key. You dont wanna mess with the anti theft or wires unless u really know what your doing