Question about GMC Yukon XL

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How do i reset 2010 GMC Yukon XL security system

Trying to figure out a way to reset the computer for the c=security system on a 2010 GMC Yukon XL

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30 MINUTE RELEARN PROCEDURE

  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to start the engine, then release the key to ON, vehicle will not start.
  3. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn OFF.
  4. Turn OFF the ignition, and wait 5 seconds.
  5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.
  6. Important: The vehicle learns the password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
  7. Start the engine. The vehicle has now learned the password.
If this doesn't work, it is possible to bypass the security http://vatspasslockpasskeysecurityhelp.yolasite.com/

Posted on Mar 24, 2014

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Posted on Jan 02, 2017

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