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Close any door and get three chirps

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After 15 months of ownership my 2019 GMC Denali 3500 started giving 3 chirps every time any of the four doors was closed.  In Setting/Vehicle there is nothing in the menu to catch this.  The Gm tech who called didn’t have an idea at this point.  I should add that the keys are outside the truck with me.  And, it chirps when I close the door when I’m inside with the key in the ignition and the truck running.  

Edited by Jackson out west
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Like mentioned above, mine will do this if I leave the remote in the vehicle.  Check to make sure your second remote isn't in the vehicle as well by leaving your primary set in the house while trying to enter and start your truck.  If your able to enter and start your truck while your main set of keys is in the house, then you need to start searching the truck for your second set.

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No keys in the truck at all.  But, catch this, the problem stopped the next day!  Just posting on this site produces miracles, I guess.  Or, there is something in the alarm system (not he software) that I hit when poking around in and under the dashboard.  GM in the meantime didn’t have a clue.  Anyone out there figure it out?


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