Alarm going off

This means the security system is activated. To reset the system remove the negative battery cable and touch it to the positive terminal which will discharge the capacitors in the system and reset the security light and the engine should start.

Also check the battery of the car here is a way you ca load test it yourself.

https://www.2carpros.com/articles/car-battery-load-test

Please let us know what happens.

Cheers, Ken

How can i get my vans anti theft system to disengage or disarmed? Please some one help!

You cannot it is through the engine computer by reading your key then the computer allows it to start. Did you loose all of the keys?

I have both keys, but even then it wont start. The anti theft is still on and my van wont start. I am trying to avoid talking it to the dealer.

Then it is going to have to been taken some where that can read all the computers.Then if need be relearn the keys to the car if it somehow for get the keys. Or you may have something that went bad. Without scanning the computers it is hard to say. But if you end up having to program all the keys for any reason.It takes a GM scan tool and GM service install or something that is compatible to be able to do that. So your going to have to choose wisely .Because if you get it towed to a shop then they say we do n'o have the tools to do that. Then it will have to be towed to the dealer anyways to be repaired. Sometimes the dealer is the best choice. You can try a lock Smith, but again he might not have the correct tools or he might not be able to fix it, and because of a failed part. So you will have to pay him for coming out then have to pay someone else to fix it.those are completely different then the GM pass lock sensors where you can try to learn them with the three ten minute key cycles. I have had to program those keys before when all the keys were lost. When I worked for Saturn, it took the GM scan tool and the GM service stall and it took took a little while, then time you out so that they cannot quickly steal cars. Even if you have all of the correct tools. Your really going to have to call around and choose wisely, even then you may end up having to take it to the dealer and spending even more money than you would have spent if you just took it there to begin with. Cars are getting more and more complex as time goes on. Every make has there own version of the new technology.That makes independent shops harder and harder to repair them. They have to invest in tools and training to keep up with this technology.

How can I disarm the ant-theft on this vehicle?

Can you tell me how long it will take to get an answer? I have been waiting all day for an answer from another site.

you cannot disable it unless you know someone who can program your computer to take it out of the system altogether. No resistor will work like older ones with pass key even if yours has a pass key.

How can i get my vehicle running can it be turned off or just reset?

if it will not start then look online for reset for your vehicle if it still does not start then it may need scanning to see what is wrong with anti theft if anything. most of time reset works though.

My van will not start because the anti-theft is engaged.

Did you lose all of your keys? Its not like a service light. I have had them where all the keys were lost. You have to use a GM tech2 scan tool and the GM service stall. Then use the tech2 on the vehicle with the key on for about ten mins the scan tool counts down. You have to also maintain battery voltage while doing this.

Who could help me with this problem? i do not know the internet that well.

How do i reset this anti theft system?

try this, but I think it has to be reset at dealer.

Hey FRANCES

I have had luck with closing all doors, locking the drivers door then unlocking it, try to start it then. Is the security light flashing btw?

Best, Ken

First we had a major problem with the electric which turned out to be the alternator but when we finally installed the new one we turned it on and the electric problem was solved but then the security thing popped up and it won't go away please help it's very annoying

a pro has to scan it to see what is wrong with it if you have tried to reset it already. if no manual look online for your car to reset

Car does not want to start we thought it was the starter but it's not realized later the anti theft system Light had been on so what do I do?

try restting it instructions in attachement

my service theft system light came on. i didn't know i had a theft system. what does this mean exactly? and what happens if I don't take it in to get checked?

just try to reset it first, turn key to on without starting car, leave it on for up to 10 minutes or until light goes out. turn key off and thentry to start car. if light goes back on take to garage to see whatis wrong with it.

My security (anti theft) system will not go off and keeps draining my battery. Can you tell me how to reprogram it or something it is driving me crazy.

is it factory or aftermarket?

My Uplander does that when the battery is low. Have your battery checked.