For the first time since owning my 2001 Lexus RX300, bought new, the anti-theft alarm went off tonight around 10:00 pm...no one around car. Car parked in drive way. Wireless key will not turn the alarm off, unless I press "PANIC" button. Could the battery in the "key" need to be replaced?
Factory alarms rarely false alert, maybe someone did tamper with the car and ran off before you saw him. The one thing that will often trip alarms is a bad battery in the car, have it tested. Your car may have an add-on alarm in which case anything goofy can happen. It's odd that you had to hit the panic button to shut the alarm off, but if it functions normally otherwise it's unlikely to need a new battery. Is it at all possible that you hit the panic button and that caused the alarm to sound? If it was in your purse or pocket maybe it got pressed in which case it might be normal for you to have to hit panic again to turn it off.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/oscar_403cc49e0f00cda7
SOURCE: 98 celica battery went dead replaced now it want crank
Try this: Unhook the battery. Reconnect the battery. When the horn starts to beep, cycle the ignition key in the ignition on-off 5 times. This resets the alarm; the cycling of the key. Please advise me if this works for you.
SOURCE: Anti theft alarm going on and off after replacing battery.
u can try to put key in drivers door lock & un lock it manually some times this will work
SOURCE: How can I bypass a anti auto theft system on my 1990 cadillac seville?
I Have A Seville 1990, When That Happen To Me I Got The Inginion
Replaced Problem Solved. What Is Happening Is Your Key Has A Chip And That Chip Is A Resister And When The Valve Is Not Sented To The Computer It Disengages the Fuel Pump And Than Tells You To Wait. Soon All That Will Happen Is You Will Get The Wait 3 Mins And It Will Never Start, A Good Locksmith Can Take Care Of This For You And That Will Save You Some Money. Cause If You Go To The Dealer Ouch They Will Hit You Up. But I Asure This Is How It Will Happen Cause It Is How It Happen To Me
And Sorry There Is No By Passing The Computer
SOURCE: cannot disable anti theft alarm driving neighbours mad
There should be a relay under the hood for the security system, if you can not find it, try jacking the front of the car up, it should have a sensor that tells it that it is being towed and should turn off, unless of course it has a bad wire that is grounding out.
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