how to cut off alarm?

I just bought a 2000 Chevy truck the alarm went off when I open the door , turns out the person that had it didn't give back the key fob when the truck was reapoad so I ask Chevy dealer and they ordered me a key fob for $85 and programmed it for $40 took only a few min and fixed it .

You can try this. It may or not work but it's worth a shot. Unlock the doors with the key out of the ignition. Then start the car. Lock the doors and shut off the engine. Let me know if that's the cure.

I have a 2014 Honda Odyssey I had same problem Alarm going off especially at night Waking everyone including the neighbors You can YouTube there's a video But all you got to do is open hood Where there's the hood lach there's a connection just disconnect that wire.. Basically what trigger the alarm is the hood I'm guessing with the wind it triggers it... Try it And have a good night sleep..

We just locked the doors, then used a key in the drivers side door lock to physically unlock the door, and it stopped.

Make sure the electronic sliding doors are fully closed. if not - push in the sliding doors till it is flush to the side of the van. This would prevent the alarm from sounding off throughout the night.

Close the doors. And unlock it with keys (Turn it left or right).