Comments on: Anti-Theft Systems for GM Vehicles

By: Rick

Rick — Thu, 11 Mar 2010 03:38:41 +0000

You do not need to go to the dealer. And no, you cannot reset it with a code reader (you need a bi-directional scan tool). But you can do the relearn procedure yourself. Turn the IGN switch to RUN. Momentarily turn it to START–BUT DO NOT START THE VEHICLE. Wait 10 minutes–the security light will flash. When the security lights stays on steady turn the IGN switch to OFF. Do this procedure 3 times. This will take you 30 minutes. On the 4th try, start the vehicle. Oh, bring a book or magazine along.

By: david

david — Tue, 09 Mar 2010 04:44:08 +0000

I just replaced my ign. switch on my 2000 saturn sl2 (the cyl. locked up) it starts but dies after a couple of seconds, the security light keeps flahing on the dash (I think I tripped the theft deterant system) do I have to call the dealer for a re-activation code? and can I do this with an obd2 ?

By: Rick

Rick — Fri, 05 Mar 2010 23:01:52 +0000

Nope. Either fix it or find someone who can install a bypass system. No way to remove it. P.S., by the time you end up screwing around with a bypass, you could have fixed the system.

By: mike

mike — Fri, 05 Mar 2010 21:33:32 +0000

Is there a way to just remove an anti theft on a 95 monte carlo?

By: Rick

Rick — Fri, 05 Mar 2010 15:11:47 +0000

To repair the anti-theft, read the article on my site and test and replace the components. I know that a few companies make a bypass kit. I’ve never installed one so I can’t give advice on how to do it.

By: mike

mike — Tue, 02 Mar 2010 18:20:09 +0000

how can i bypass or repair the anti theft device on a 1995 monte carlo

By: Rick

Rick — Wed, 24 Feb 2010 01:02:31 +0000

You don’t have PassLock. You have PassKey. PassKey DOES cut out the starter circuit and the fuel system. Rather than bypass it, why don’t you remove the lock cylinder and transponder from the old column and transfer it over. I’m not the person to ask about the VATS bypass. Never installed one and never would.

By: Jeff

Jeff — Mon, 22 Feb 2010 23:50:30 +0000

I have a ‘97 Cutlass Supreme and have replaced the entire steering column to repair a bad multifunction switch (no signal lights). The signal lights work fine now, but I have a no crank condition. If I apply power to the starter solenoid the car starts and stalls a few seconds later. My question is does an improper voltage drop in the Passlock system cause a no crank condition or just shut down the injectors after a few seconds? If so, am I right in thinking that performing a ‘VATS’ bypass as per Marco’s comment (June 2/’09) should cure this problem?

By: Rick

Rick — Sun, 14 Feb 2010 16:16:30 +0000

I’ve never used a bypass module so can’t offer any advice.

By: Gary

Gary — Sat, 13 Feb 2010 15:29:48 +0000

I just had the antitheft module replaced by a dealer on a 98 Chevy pickup. Truck starts now, but the security light remains on, and the dealer says that its due to a prolbem with the Passlock system–and I now need to replace this ($350 or so), or problem with antitheft module could happen again. I’ve seen bypass systems online for $50-75–can I simply bypass the system?