No vibrations or anything. Answer Save. Position. More: Garage Plus. I haven't had any issues with either alarms until recently. Relevance. My 2008 lexus es 350 factory car alarm has been randomly going off for no reason. No vibrations or anything. The factory Alarm has been going off for no reason. More: Lexpert And 3 Other Lexus Specialists Are Ready To Help You. I recently replaced the battery which helped but it still happens frequently. Disconnecting the battery cable to stop the alarm doesn't work on this car, it actually just re-arms the alarm so it will go off again. Mark shows you a trick he has used to stop this annoying condition. 4 years ago. The factory Alarm has been going off for no reason. My 1992 Lexus ES300 had a different alarm system put in. 2 Answers. Something is going on with my lexus car alarm. That will silent the alarm BUT will not reset the immobilizer so the starter will work. What could be wrong? No rhyme or reason for it. / Alarm going off Lexus NC300H. Car alarm keeps going off on Lexus ES300? Alarm going off Lexus NC300H ... Paul answered 2 years ago I Removed Coin from Central Console and Alarm Stopped going off at night. Don't tell me theres also a third press of the key LOL. I just bought a 2003 Lexus ES300 and its anti-theft alarm keeps going off. 10 years ago. One fact i've never worked out is how to open the lexus door using the key without the alarm going off! Car Alarm Keeps Going Off On Lexus Es300? while in comparison with German autos, confident. Lv 4. ... Go to RepairPal Encyclopedia. Turn off the air conditioning, blower, interconnecting wiring and power sources. I haven't had any issues with either alarms until recently. Favorite Answer. radio, etc., and drive directly to the nearest Lexus dealer or repair shop. The most common causes why your car alarm keeps going off are low battery voltage, faulty hood latch sensor, a faulty door lock actuator, or a faulty programmed shock sensor. Your car might have a very common problem. More: Chicago Lexus Club. After reading a few posts about it and scratching my head a bit i think my 2001 lexus is the otherway round, one press to lock it and set alarm, second press locks door and disables alarm. keeps cutting off; Is there a way to deactivate the alarm - Answered by a verified Lexus Mechanic We use cookies to give you the best possible experience on our website. More: Lexus Is Forum. My 1992 Lexus ES300 had a different alarm system put in. When it goes off you need to put the key in the ignition and turn it to the ACC. More: Led Stop And Tails Into Mondeo Mk3 Ghia Tdci Estate. There are sites that provide info on how to do this for other vehicles, not sure about a Lexus though. Alarm is Very sensitive to coins or Reflective objects in Central Console. Page 68 If it flickers or stays on while you are driving, pull off the road may come on earlier than the specified service interval of the to a safe place and stop the engine immediately. Luckily the alarm is not getting off every time because of a thief; sometimes, a faulty installation or other reasons also cause the alarm to go off. ... replaced battery in 2002 lexus es300 now the car won't stay on. Skye. Someone keeps trying to steal it. ... Lexus alarm system 1 Answer. The designers of the Lexus navigation system have developed a reputation for systems that can track down even the most "tough to find" locations. Getting a lot of false car alarms? But electronics by any company, no matter their reputation, can run into problems. More: How To Shut Off A Car Alarm That Won T Quit. 0 0. alire. More: Ls400 Car Alarm System. 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