MRubenzahl Posted December 20, 2010 Share Posted December 20, 2010 When I turn the car off and get out, in a few seconds (5-10), the alarm goes off. Pressing the unlock button on the remote key stops it and I can them lock the car and set the alarm, but next time I start and stop the car, the same thing happens. This started when some knucklehead (that would be me) left a light on and drained the battery all way to zero. I jump started it and the battery seems fine, but the alarm issue won't resolve. A quick disconnect of the battery did not fix it and a longer disconnect (over 5 minutes) also did not. I also pressed the brake pedal while the battery was disconnected, for good measure. It's a Lexus RX300, 1999 or 2000 model year. HELP!! Quote Link to comment Share on other sites More sharing options...
intakerGS Posted December 21, 2010 Share Posted December 21, 2010 I found this link: alarm probl were you stated the same problem and eventually found a solution? Anyway, you can try to reset the alarm by manually locking and opening the drivers door with the key a few times. Another possibility is your backup battery (the one for the alarmunit) going bad or the door/hood switches/latches not working properly (door ajar). When you lock the door manually (like in your other post), the alarmsystem isn't set, therefore it will not go off. Quote Link to comment Share on other sites More sharing options...
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