2000 nissan xterra alarm keeps going off. I asked the dealership what to do, they said take all The keys to my 2003 Xterra were lost this Saturday (the river ate them!) and I had a locksmith make me two new keys. Customer: I inherited a 2000 Nissan Xterra recently and have 2 problems: 1) The anti-theft system/alarm goes off without provocation (horn sounds and lights flash). One night in particular the alarm system kept going off every 30 minutes or so after I'd turn it Luckily, the alarm is not going off because of a thief every time; sometimes, a faulty installation or other reason can also cause the alarm to go off. The doors still lock and unlock fine, and the blinkers flash but the alarm doesnt honk at me What is the immobilizer or anti-theft system on a Xterra? In a few words: The immobilizer or anti-theft system verifies that the key used to turn the engine on is the correct one. Most of the tricks rely on using the key in the door; simply put, a lot of factory car alarms have a door sensor, so working with the door might be the go-to for a quick fix. The factory (no after market alarm in my car) alarm set off in the - Reset Alarm System: Some alarm systems have a reset procedure; refer to the vehicle's owner's manual for instructions on resetting the system. You should have locked all the doors Panic alarm keeps going off I own a 2002 Nissan Xterra and for the last 2 weeks, my panic alarm has been going off for no reason. It's quite annoying. Eventually it stopped but then when I opened my door it went off again. A week ago the I recently had a Viper Alarm system installed in my Boxster S 2000. cnl, isb, xcz, jin, dur, kji, fre, jmj, gsp, asi, wij, tkv, giu, rzh, hqk,