Car Repair & Diagnostics : How to Shut Off a Car Alarm That Won’t Quit

Car Repair & Diagnostics : How to Shut Off a Car Alarm That Won’t Quit


Hello my name is Tom Brintzenhofe a certified
master mechanic out of Reading, PA. Today we’re going to talk about how to shut off
a car alarm that won’t quit. There’s two different kinds of alarms you have, you have a factory
alarm that’s been pre installed at the factory line when they made the vehicle; second one
was put in after market at your local repair shop, stereo installation shop. The easiest
way and the quickest way to disarm an alarm that’s just annoying as hell, is take your
negative battery terminal; you’ll need a wrench to loosen up, I’ve already done that ahead
of time, and take it off. A lot of these after market alarms have a backup battery, it’ll
still go off for probably about 5 or 6 minutes maybe even longer depending on the capacity
of the backup battery. The other option you have if that’s the case on your certain vehicle
is to find out where that speaker is; it usually mounts somewhere under the hood. Just find
it, we’ll say it will be mounted somewhere in this general facility, and you would just
take the connector and unplug it an the alarm will still be going off your lights will still
be flashing but at least you want have to listen to that annoying noise. Either way
it’s going to have to be taken somewhere where they can diagnose what’s wrong with the alarm.
If it’s factory alarm it would have to go back to the dealership anyway to have them
reprogram it once they figure out what the problem was. After market alarm, I would suggest
finding out who installed it then taking it back to them. Chances are it’ll probably have
to be towed, because when alarms go off they disengage the ignition system so you won’t
be able to start the vehicle. But noise wise get rid of that annoying alarm: disconnect
your negative battery post, then if it’s still going off find your speaker, unplug it, call
AAA have them come get it and take it back where they put it in.

20 Replies to “Car Repair & Diagnostics : How to Shut Off a Car Alarm That Won’t Quit”

  1. I have a 2000 jeep grand Cherokee and the stock alarm don't work the little dash led don't flash how can I fix it?

  2. took cabels off battery to reset car now when i reconnect them the alarm wont go off n the car wont start

  3. hey ive got a 2003 jeep liberty and i found the kill switch for the alarm after replacing a good battery because it wouldnt start useing my alarm keypad to turn off a blareing alarm

  4. If you disconnect the battery, then turn the key to the on position and reconnect the battery. that will reset the alarm.

  5. lately, I must leave the key in the switch, when working on my 200 3 Ford Tauris. if i don`t do this the factory installed alarm might trigger.
    Thing is that not the same place triggers the alarm.
    Some times opening the hood does it, or opening a door, or while i am under the hood checking the oil.  Once, just getting out of the car, and closing the door did it

  6. if i have to search for the speaker by my self what the reason of watching you man you didnt even describe how the speaker look like

  7. Hey i dont wanna be rude even tho i still might be…. but i saw you on another vid man and my remote is not working and ima try and take out my alarm myself, but your just telling people to tow and take to someone else i already know i could do that

  8. Just had the car alarm go off on my Honda Stream as I was changing the battery. Once the negative cable attached the alarm started, to fix it we removed the negative connecting cable (leave positive attached) manually lock the car, re-attach the negative (alarm will start again), then manually unlock the car again, alarm stopped.

  9. i have 04 dodge caravan i can start my van but when going down the road the horn will beep like crazy and maybe my light will flash i not sure about that how can i fix it

  10. hi, i have a issue, maybe you could help. Honda Accord 2013 remote control issue.
    The remote control buttons that lock/ unlock and make the horn beep to locate the car, no longer work on both remotes. However the other function on the remote, keyless entry into the car, trunk and start the engine still work perfectly. we tried changing the battries but no luck. what may have triggered this issue, could be we touch something when we tried to install a dashcam but we took it out and traced back the path we touched and all looks good.

    could it be a fuse ? could it be a untenna of some sort was unplugged/ disconnected ? could it be it needs to be re programed to the car ? would appreciate if you can please suggest anything ?
    Thank you

  11. If you lose control of the keypad to shut off an alarm it is generally caused by low battery voltage. The alarms can run on 3 volts in your battery and has a sensor that alerts you to low voltage in your battery. If you have a problem with your car alarm system check the voltage level of your vehicles battery first before you call the tow truck. If you can get a jump start, that should put things right with the alarm system in your vehicle. Hoping that this helps my fellow travelers.

Leave a Reply

Your email address will not be published. Required fields are marked *