I have a 2006 GMC Sierra Denali with an anti-theft system. It's been broken into twice in the last year by hammering or punching out the locks. Neither time did an alarm sound. Should it have? Is my alarm 'broken'?
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Re: How does a GMC Anti-Theft Work?
Anti theft in you gm vehicle is to prevent some body from driving away with your vehicle. Not to prevent someone from breaking into it. You need to have a secondary alarm system installed. This will protect the contents of your Denali. Mike
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Explain anti-theft fuse box ! what do you think this is ? There is an anti-theft system on your vehicle , called PATS - passive anti theft system .Sorry , but there is not anti-theft fuse box .
Anti-Theft -Passive Anti-Theft System (PATS)
The passive anti-theft system (PATS) contains the following components:
encoded ignition key
PATS transceiver module
powertrain control module (PCM)
standard corporate protocol (SCP) communication network
relearn of key less entry is done by crank engine slightly, leave key on until theft light quits flashing. turn key off then try to start. if no start and light is still flashing, anti theft sensor in key tumbler or body module fault..
According to my lists, 2000 Yukon has a Passlock 2 anti theft security system. This means that the key literally has a transponder in it that sends a radio signal to the ignition. The ignition/lock cylinder then sends a signal to the TDM (theft deterrent module) which then reads the signal and allows your truck to start. If there are any communication breaks, the truck thinks its being stolen and goes into anti theft.... Read up on this link. There might be an option for you. http://vatspasslockpasskeysecurityhelp.yolasite.com/
I've got a 97 deville d'elegance that has issues similar to these. Last year the red anti-theft light came on and the car wouldn't start-took it to the dealership and they replaced the PCM? (the main brain for the system) for $900...the guy told us the wiring was so corroded he didn't want to mess with it much. Today the message started flashing on the dash that says "anti-theft problem/ car may not restart" but it still turned over in the driveway a couple times so I am hoping I can reset it. The wiring system is jacked and will probably need to replace the wiring harness completely. Doubt its worth it. Not a secure feeling with 2 babies in the back seat in the middle of winter....