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Resetting security system

My 1986 300ZX has a continuous flashing security light that is killing my battery in less than a 24 hr period. What can I do to make it stop.

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Check door and hood latches to make sure they are actually closing properly. It could be a faulty security module, but more likely it is a broken plastic piece that clips onto the back of a door lock.

Also, if you want to test each security sensor before ripping everything apart, you can put the key in each lock and turn it to about 2:00. The light should go out completely but then begin flashing again when you remove the key. If you can get the light to go out while doing this on each door and hatch lock, then you probably have a bad hood sensor.
Otherwise, the lock that does not turn the light off is the one with the bad sensor. Also found that the alarm will not work if the security light is flashing.

Posted on Mar 25, 2014


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Posted on Jan 02, 2017


SOURCE: parking lights flash drains battery on security system

mine was doing that and it was cause of a relay in the fuse box under the hood got moisture in it and was shorting out i caught it flashing the lights once and sounding the horn like it was hoarse replaced the relay like 4.95 at autozone and it fixed the problem

Posted on Sep 04, 2008

SOURCE: 1999 Ford F150, Charging system.

Your battery may not be holding its charge. Charge the battery and take a voltage reading. Then after a few hours take another reading andsee if the voltage has dropped. If that is alright, refit the battery to the car. turn off all the electrics anddo a voltage test. If the battery is discharging then ou will have to find what componant is drawing the voltage. I normally check the boot through the rear seats first.

Posted on Nov 28, 2008

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SOURCE: 2005 Chevy Malibu Anti-theft system indicator light

I just had this to happen to me - here's what you do - when it will not crank - turn your key over to ACC and let it stay on here for 15 minutes, the THEFT SYSTEM light will stop flashing. Turn your key back to OFF then turn it over as normal when starting and it will start right back up! Found it out from an auto store! One lady paid over $700 and then found this out!!!

Posted on Jun 08, 2009

  • 1 Answer

SOURCE: I have 2000 Chevy Tahoe Z71. The security light stays on

1999 chevy tahoe security light goes on while im driving does
not seem to cause any problem

Posted on Aug 25, 2009

  • 2 Answers

SOURCE: How do I reset the factory car security system

there is a red blinking light it is a reset button just push it and it should cut off. if not the button is bad and you have to go to a junk yard to get it because mitisubishi doesnt stock this part anymore!!!

Posted on Nov 08, 2010

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I put a new battery on my 2009 Nissan titan..the lights and locks work..but truck won't there a kill switch or what do I do?

This happen to me on my Ford. I was not careful enough connecting the new battery within a certain time period and the truck locked its security system. I had to car carrier it to the shop, where they reset the system. Tow + 1/2hr labor

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So you want to make you car less secure ? .....have the system checked by a RR dealership and corrected. There is no simple way to by-pass the anti theft and a continuing fault may drain the battery over night.

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1985 cadillac eldorado battery drain

The security light is supposed to flash, it indicates the system is armed, the system is functional in my opinion, why do you think it isn't? It is not the cause of the drain unless the car sits for months. Check for vanity lites in the visor left on or other interior lights.

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I have a94 pontiac grand prix 3.1 it won't crank has a new pump, fuel filter, & new relay...could it be the security system? if so where is it and how to discount?

If you have a security system and the car wont start then your starter kill is the culprit, if the starter kill is active then your car will not crank, you must disable this by pressing the unlock key in your remote twice continuously , check your LED bulb in your dash or where ever it is mounted if you have one that is. If you dont, see if your parking lights flash when you press the alarm remote keys. Physically disabling a starter kill is not something you want to do with expert help , you must have a car audio tech do this for you or someone who is physically there to help you, I cant help you from Fix Ya , it is too much technical information and a delicate procedure that you must do under your dash if you can locate the alarm brain. All this if its the starter kill if not then you have a mechanical problem, check your starter, battery, alternator, ignition and obviously as silly as it may sound gas. Its probably an electrical issue like your ignition, battery, or alternator. Check Maxi Fuses under your hood or under your dash.Ignition fuses etc.

Good luck.

Jun 12, 2010 | 1994 Pontiac Grand Prix

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Red and green lights on mirror flash continually,sometimes go out only then will car start

I had a similar situation on my 1995 C220. Firstly it appeared that the key was transmitting duff code and confusing the system. With green/red leds flashing the immobiliser's on. A weak key signal was misunderstood, but a new key battery solved that.
Secondly, my problem didn't time-out like yours. When the problem had occurred the only way to stop it was to disconnect the battery...I think it was just for some seconds.
This reset the system. With a good key code transmitted and a reset security system it all worked fine.

Mar 24, 2010 | 1996 Mercedes-Benz C-Class

1 Answer

2003 Pontiac Grand AM suddenly won't start and security light is flashing on the dash board. All systems are OK such as Battery new, fuel ok and ignition starting system ok. Looks like some anti-theft...

Check to see if you have a computer chip on your key. Chances are that the computer chip or the reader in the ignition keyhole is not reading it properly. If you leave the key on, engine off, for 15-20min. that security will reset and the light will go off. Turn key off and now try to start engine.

Aug 16, 2009 | 2003 Pontiac Grand Am

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2005 Chevy Malibu Anti-theft system indicator light

I just had this to happen to me - here's what you do - when it will not crank - turn your key over to ACC and let it stay on here for 15 minutes, the THEFT SYSTEM light will stop flashing. Turn your key back to OFF then turn it over as normal when starting and it will start right back up! Found it out from an auto store! One lady paid over $700 and then found this out!!!

Jan 21, 2009 | 2005 Chevrolet Malibu

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Take off the battery negative cable and reset everything. Your security system is kicking in and killing everything. Also check to be sure no fuses were blown as well. Sometimes the Fuseable link is an easy miss. hope that helps.



Nov 11, 2008 | 2005 Kia Amanti

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