2006 F150 cobra alarm?

I have an 2006 Ford F150 truck Cobra alarm lately the alarm system keep sounding off for several hours when parked it's driving me crazy.... what could be the problem.... please help!!!!
Margaret, November 2019

The most likely fault will be the switch in one of the doors that detects if the door has been opened.. Could be known as the 'Door Ajar' switch.
Will probably be bent or worn and need replacing. You'll need to refer to a service manual for your specific model to find it's exact location and part number. This will probably involve removing inner door trim/card and inspecting the lock mechanism if there isn't an obvious push in plunger switch stick out of the door frame

Rupert, November 2019
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