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My alarm goes off in my 2000 Montero for no reason. It'll sit for hours. Then just go off.

does anyone know why
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Best Answer
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stever Guest Posts: 52,454
Old alarm systems in that era vehicle tend to get flaky as they age. When the one in my '97 Subaru started going off randomly (usually at 2 am), I managed to disconnect it without losing the key fob buttons. No idea if that's possible with yours. You could try chasing the wiring down and cleaning the various contact points.5