Question about 2003 GMC Yukon XL

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The dash indicator light is on showing the

The dash indicator light is on, showing the padlock, on our 2003 GMC Yukon. The vehicle won't start.

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YOUR CAR IS IN THEFT SECURITY MODE.TRY USING DIFFERENT KEY.IF ANOTHER KEY DONT WORK.YOU HAVE PROBLEM IN THE SWITCH AND BCM.TO GET CAR TO STARTED TURN THE IGNITION WITH KEY IN TO ON POSITION WITH ENGINE OFF FOR 10 MINUTES.WATCH THE PADLOCK.IF IT TURNS OFF.TURN OFF IGNITION SWITCH FOR 5 SECONDS.THEN TRY TO START ENGINE.IF ENGINE STARTED PROBLEM IS IN THE IGNITION SWITCH AND BCM.IF YOU GET VECHICLE RUNNING NOT SAFE TO DRIVE BECAUSE THE VECHICLE WILL GO IN THEFT MODE SHUT OFF YOUR FUEL PUMP WHILE YOU ARE DRIVING IN HEAVY TRAFFIC. DONT LET GO GET IT FIX FOR YOUR AND FAMILY SAFETY.

Posted on Apr 25, 2010

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1 Answer

Starting then cuts off


Look for any indicator lights on the dash when this happens. Look mainly for a light that says SECURITY, ANTITHEFT, or looks like a car with a padlock thru it. If you see this light, go to this link. http://vatspasslockpasskeysecurityhelp.yolasite.com/

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Sometimes on GM vehicles, the anti theft system can fail. This causes the car to stall and can lock the ignition to prevent theft. If you see a light on the dash that says "security". Then this is your problem. Info and solutions on this site. http://vatspasslockpasskeysecurityhelp.yolasite.com/

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