Question about 2006 GMC Envoy

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I have GMC envoy 2006 and its anti theft lock can i deactivate anti theft lock

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Posted on Jan 02, 2017

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SOURCE: 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

Posted on Jan 06, 2009

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SOURCE: reset anti theft system on 2003 gmc envoy

It is 100% automatic

Posted on Feb 24, 2012

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SOURCE: My 2007 gmc envoy shut off while riding down the road I have taken it 2 places and have heard everything from my anti-theft to a seized engine. Help

If it is the security the light will not go off, when you turn the key to on position. For the engine I would loosen the drive belt, then try to start, If it starts, your A/C compressor is locked up. If not, put socket and breaker bar on the crankshaft bolt. Turn it clockwise. If it moves at all it isn't locked up. What does it do when you try to start it? noises, what lights come on. Have you had the codes read or remember what the shop told you.

Posted on Apr 16, 2016

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1 Answer

How do I turn off anti theft system? or reset it?

You have damaged the transponder reader thats located around the steering /ignition lock only to repair sorry

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How do I reset the ProLock system?

Hi Carol , do you mean PATS passive antitheft system ? Locked up your car ,do you mean it won't crank over an start ?
The passive anti-theft system uses radio frequency identification technology to deter a driveaway theft. Passive means that it does not require any activity from the user.
  • During each vehicle start sequence, the ignition key identification code is requested by the vehicle protection anti-theft electronics.
  • If the key's ID code has been programmed into the system, the powertrain control module (PCM) (12A650) is signaled to enable the vehicle to start.
  • If the key's ID code is not programmed into the system, or if no encoded key is detected, then the powertrain control module is signaled to disable the vehicle.
The passive anti-theft system communicates the state of the security system to the powertrain control module via the J-1850 communications network data link connector (DLC). The powertrain control modulebased on the communications from the passive anti-theft system, will determine if the vehicle's engine is enabled to start. The passive anti-theft system differs from the active anti-theft alarm system in that the passive anti-theft system enables/disables the vehicle from starting and only operates with the ignition switch in RUN/START position. The active anti-theft alarm system has perimeter protection capabilities and operates only with the ignition switch OFF. Refer to Section 13-11A for active anti-theft alarm system information.
Vehicle Disabling The passive anti-theft system will be activated and disable the vehicle from starting if any of the following conditions exist:
  • damaged encoded key
  • unprogrammed key
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  • wiring concern
  • transceiver concern
  • Passive Anti-Theft System (PATS) control module concern
  • J-1850 Communications Network concern
  • Powertrain Control Module (PCM)

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I changed the steering colomn on my 2006 GMC Envoy and now it won't start, is there a code that I have to put in to get it to start again?

You may have interrupted the anti theft feature, causing the vehicle to lock out from starting.

Sep 29, 2011 | 2006 GMC Envoy

1 Answer

Radio on a 2002 gmc enoy says locked

If you just replaced the battery or something, the stock radio has an anti theft device that makes the radio ''Lock'' when the power is disconnected. the only thing you can do is take it to the dealer and hope they have your unlock code.
You may find a reset procedure but I doubt it... good luck!

Jul 19, 2011 | 2002 GMC Envoy

1 Answer

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

Jan 06, 2009 | 2006 GMC Sierra

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