Question about 2003 Pontiac Grand Am

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What causes the security light to start flashing and disable the starter? have to wait with the key on, and it is becoming a real hassle

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Hello! Unfortunately, you are experiencing a common issue with many Grand Am owners. The problem is that you have a defective PassLock sensor. When the sensor doesn't "close" when you turn the ignition, it detects a fault and will not start. If you leave the ignition in the "On" position for 10 minutes, it will reset and allow you to start the vehicle. The ignition cylinder contains the sensor, and this part is roughly $400 and not particularly easy to replace.
There are however, bypass methods available that will disable the PassLock feature entirely. I have included a link to the instructions here.
NOTE: Be aware that some of the bypass options will disable your PassLock anti theft system ENTIRELY. I recommend utilizing one of the options that explicitly states that your system will be fully operational after modification (toggle switch method, for instance)

Hope this helps and good luck! Thanks for using FixYa!

Posted on Oct 01, 2009


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97 Chevrolet Lumina. Won't start. Lights, horn, radio all work. Tried jumpstarting. Still nothing. Tapped starter and it started but cuts right off. Noticed Security light flashing. Checked all...

You have a security issue going on. Try turning the key to the on position and leave it on without trying to start the car. Wait about 10 minutes and the light will stop flashing and come one solid. Then try to start the car. Turn the key to the off position. Wait 60 seconds and then turn the key to the on position. See if the light is still flashing. If it is then try the process again. If it isn't flashing and it is on solid then start your car.

Oct 19, 2013 | Cars & Trucks

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Starting: car will not start; dash reads "starting

Hello, RW Betton,

Here is a few things to try then please read toward the bottom. Please read my whole page here of ideas for you.

Question? when it does disable it usually will say " starting disabled due to theft system remove key from ignition and wait 3 minutes'. Are you able to start car after the 3 minutes? or it wont period? My car does this a lot to but I think its cause you have to unlock the car, get in it, shut the doors and then start the car because mine does it when i open the doors.

Also some times if you have a chip in your key will do this as they ware out, and would have to try you back up key (if you have one) and if turns out to be your key, that has bad chip, dealer would have to replace that.

Finally, this is your other choice as well below, and you can click on that site and it should help you. Most the times this whole issue is triggered from the key itself into the ignition, that cause this.

If you have the GM pass lock system in that car, this is a site that will show you how to disable it:

However, if it were my car I would see what the dealer will charge to fix it first. It may just be a simple reprogramming is needed or a inched wire in the steering column. I would want the car to have an anti theft system working as it should.

I hope my free advice has helped you, and if you could please rate my help accordingly and some kind words too. I appreciate it, and keep me informed on progress. Here is also my direct link for all my services I offer to help you.

That is my personal page of all my areas of ads of my expertize. Mike

Oct 17, 2011 | 1997 Cadillac DeVille

1 Answer

The security system disables the car in seconds of unlocking door. My wife has to lock the doors and wait outside of the car for security light to go out then unlock the door with key. Then it's a race...

the security system is integrated into the body control module. to disable the system you would also disable alll the accessories in the car. may want to have the bcm checked for fault codes. chances are it may just be a switch in one of the doors that is bad.

Aug 17, 2011 | Buick LeSabre Cars & Trucks

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03 f150 will not start(security light flashing). Turn switch on, wait to see if light flashes, if light stays on truck will start. May start twice then back to switch off & on check for flashing. Can I...

There is no way to disable the immobilizer ( that would defeat the purpose of it ), the question I have, do you have another RFID tag on the ring with the truck key ( speed pass, another Ford key, etc ) ?

If you have these on the same ring, and they are too close to the key cylinder, it can cause a false negative for the programmed keys.

Have you tried another key ?

Are there any other modifications to the truck ( remote start, or security system ) ?

Apr 07, 2011 | 2004 Ford F150

1 Answer

Starter disabled due to security system

The problem is your Vats security system. This causes the car to either "not start" or "shut down" while running. (depending on the system) If the security light flashes, i guarantee that this is what the problem is. 1st trick, turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start.
Cheap fix:
----- Bypassing the key
Never worry again fix:
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites

Jan 12, 2011 | Cadillac DeVille Cars & Trucks

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Starter turns but no ignition, PK3 M security, the problem is intermittent and does not cause a problem with every start. So far I have been able to get it started after several attempts with differing...

is your security light in dash flashing if so try to start let off key but do not cut off leave key on so all your dash lights are on let vehicle set for at least 15 mins. flashing security light should stop flashing once it stops flashing start vehicle sounds like it has tripped security

Mar 16, 2010 | 2002 Pontiac Grand Prix

1 Answer

The security light is blinking and when you try to start it there is nothing, new battery,starter, it simply is not getting power to start it..It seems like it is a security lock out.. dont know where to...

Normally, you would insert the key in the drivers door, turn left, then right to disarm and reset it. If yours is malfunctioning, you can disable it for good by doing the following:

light green with a negative polarity at the harness coming out of the door in the driver's side kick panel.

Once Located, splice into this wire with a similar guage wire, and put it to a solid chassis ground. This terminates the OEM alarm functions entirely.


Bulb Stays Illuminated and Engine Does Not Start. If the "SECURITY" indicator stays illuminated while and after attempting to start the engine and the engine does not crank or start, this indicates that the PASS-Key II module has sensed an improper key value and has disabled the engine and set the disable timer. This specifically does not mean that the key sense circuit is open or shorted to chassis ground, refer to "Bulb Flashes and Engine Does Not Start." Remove the key from the ignition and verify that is the correct key code for the vehicle. The key code may be checked using J 35628-A and comparing the key code to that of other keys for the vehicle. After waiting approximately 3 minutes for the disable time to expire and the "SECURITY" indicator to go out, try to start the engine with a known good key with the proper key code.

Bulb Flashes and Engine Does Not Start. If the "SECURITY" indicator flashes once per second and the engine does not start, this indicates that the PASS-Key II module sensed an open, a short or otherwise invalid (value matched none of the available 15 key codes) input from the ignition key resistor input. The PASS-Key II module does not start the disable timer during this operation mode. This operation mode could also be caused by a malfunctioning power or ground circuits.


There is 2 more ways to fix the problem:

1) replace key cylinder (very difficult)

2) look for 2 small white wires encased in an orange cover at the bottom of the steering column at the big steering column connector. Cut the two small white wires and connect a resistor of the same resistance of your key chip onto the two white wires leading into the connector. Problem solved!

Feb 12, 2010 | 1997 Buick LeSabre

4 Answers

Security light is flashing on 03 grand am

Everything you need to know is on this link

Mar 26, 2009 | 2003 Pontiac Grand Am

2 Answers

Security light flashing

Take the Original Ignition key out to the car. Get in it and turn the key on. Every light should light up like your going to start it. The factory security light will flash. Leave the ignition on until it stops flashing. Should take about 10-15 min to do it. once it does, shut the key off and then turn it over to start the car.

Aug 04, 2008 | 1998 Chevrolet Lumina

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