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HOW TO RESET THE ANTITHEFT SYSTEM ON A 2003 GMC YUKON

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Put key in drivers door lock & unlock put in ign then start

Posted on Aug 27, 2010

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Posted on Jan 02, 2017

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I have a 2003 GMC YUK9N XL with an aftermarket stereo. Battery died, anti is now on after new battery installed. How do I fix this?


The stereo is the likely suspect for this problem, I can only say I see this time and time again when aftermarket radio's are swapped in and the OEM taken out. Reinstall the OEM radio. Why is this? The OEM entertainment system is tied into the antitheft system.

Sep 23, 2016 | 2003 GMC Yukon XL

1 Answer

How do I reset the ECM?


2003 GMC Yukon XL check engine light run - YouTube

? 1:21
www.youtube.com/watch?v=Rt06jXNGJT0
Mar 31, 2014 - Uploaded by Antonio Salinas
2003 GMC Yukon XL with a check engine light on. ... HOW TORESET CHECK ENGINE LIGHT, FREE EASY ...

Oct 02, 2015 | 2003 GMC Yukon XL

1 Answer

Factory security alarm on my 2003 gmc yukon stopped working. What should I do?


This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/ &

May 05, 2015 | 2003 GMC Yukon

1 Answer

Reset computer 2003 yukon xl


May need a new alternator

Aug 17, 2013 | 2003 GMC Yukon XL

1 Answer

2003 GMC Yukon Denali will start fine but then dies with in 3 seconds


This is the antitheft system shutting off the injectors , The ignition reads the key, and if it misinterprets the signal from the key, it will say UNKNOWN driver and turn off the injectors. Basically the truck thinks it's being stolen so it shuts down. It's actually SUPER common on GM vehicles. Here is a link about it.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Mar 24, 2013 | 2003 GMC Yukon Denali

1 Answer

Power Steering out on 2003 GMC Yukon


Possible that the PUMP is not active or working to the desired level . It can also be due to air within the hydraulic system and will require a reset on the unit.
Make sure that the belt is not slipping on the pulley .

Jul 04, 2012 | 2003 GMC Yukon

1 Answer

I changed the steering column on my 2005 Yukon Denali and now it will start but won't stay running.


You probably interrupted the antitheft system. This link explains.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Apr 20, 2012 | 2005 GMC Yukon Denali

1 Answer

2005 gmc yukon security light on cluster is on


The security light is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM. These 3 parts are in CONSTANT communication. If the key is in the ignition, these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. There is where the security light turns on and shuts down your vehicle.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Dec 24, 2011 | 2005 GMC Yukon

3 Answers

Is it posible to start a yukon denali equiped with keyless entry with a regular copy of the key


it may start but if it does it will not stay running. you are asking for issues.

Dec 11, 2009 | 2003 GMC Yukon Denali

1 Answer

How to reset the change oil light on a 2003 chevy silverado


Information courtesy of synthetic-direct.ca
Chevrolet Suburban/GMC Yukon XL, 2000-05 Chevrolet GMC Trucks Silverado, Sierra, 1999-05 Chevrolet Venture 2000
Turn the ignition key to the RUN position. Fully push and release the accelerator pedal 3 times within 5 seconds. If the CHANGE OIL SOON light flashes 2 times, the system is reset. However if the light comes on and stays on for 5 seconds, the system did not reset. Repeat the procedure if the system does not reset.
Best of luck.
Greg

Jul 15, 2009 | 2003 Chevrolet Silverado 1500

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