Security system wont turn off

2000 GMC JIMMY
169,867 MILES • 4.3L • V6 • 4WD • AUTOMATIC
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LILLJOHNSON
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  • 1 POST
The security is going off. Horn blows, lights flash on and off. Have replaced batteries in remote still doing same thing.
Nov 16, 2016 at 10:47 AM
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HMAC300
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  • 48,601 POSTS
try resetting it. See picture.
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Nov 16, 2016 at 12:17 PM