I have a 2000 pontiac bonneville SLE that had a secondary anti theft system put in by original owner. When battery was low it would kick in and disable car to start. I had car towed to a place and disconnected it.Now sometimes if I dont lock and unlock doors correctly its hard to start and reads CHECK ANIT THEFT SYSTEM.Well battery went low again and this time manufactor anti theft system kicked in while not put on and shut entire car down.And locks and the blinking Security light are down and car wont even take a jump....thank you

SOURCE: battery died and anti theft code went into effect

Call your Volvo dealer with the VIN number. They can give you the code and advise if you can reset it yourself or if you will have to take it in.

SOURCE: 2003 pontiac grand am

This happened to me as well - always at the most inopportune time. When you get this, turn the ignition off, then turn to on (do not start). Let it sit there for about 10 minutes. Once the security light quits blinking you are good to go.

Marvin

• 85242 Answers
• Posted on Nov 18, 2008

SOURCE: factory alarm 97 grand prix

1st the system alarm is intagrated into the engine control electronics, it can not be disabled without poss damage to ther systems and controls, 2nd the most common cause of your issue is the sensor in the ignition lock cylinder being defective, this is the most common issue on all GM anti-theft systems.

Jackson Hisey

• 99 Answers
• Posted on Dec 01, 2008

SOURCE: Remove anit-theft system

If you use the drivers outside door lock to unlock the vehicle it should disarm the vehicle. emmissionwiz is correct, you can't simply shut the factory alarm off.

SOURCE: Isuzu Trooper anti-theft alarm

i put a new stereo in my 1998 isuzu trooper now the anti theft wont let car start what do i do