Reset the anti-theft

Tiny
OK
  • 2001 CHEVROLET SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 298,000 MILES

How do you reset the anti-theft?

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Monday, April 11th, 2011 AT 3:11 PM

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Tiny
PROTECH1980
  • EXPERT
  • 923 POSTS

Perform the passlock theft system relearn:

1. Verify that the battery is fully charged.

2. Use the scan tool to clear any DTCs.

3. Turn the ignition switch from the "off" position to the "crank" position, allowing the engine to start/stall.

4. Release the key, leave the ignition in the "on" position for a minimum of ten minutes. Do not go less than ten minutes or the relearn procedure will abort.

5. After the ten minute cycle, turn the ignition off for fifteen seconds to power the computers down.

6. Repeat Steps three to five two more times (three times total).

7. After the third cycle, It should start and run normally.

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Monday, April 11th, 2011 AT 3:41 PM
Tiny
2CARPROS KEN
  • ADMIN
  • 11,075 POSTS

Hey OK,

You can try the thirty minute relearn procedure, if you have not already. Disconnect the battery on the negative side then touch the negative cable to the positive post, this will discharge the system capacitors and hard reboot the system.

Here is a guide that might help you:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please let us know happens so it will help others.

Best, Ken

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Wednesday, December 7th, 2016 AT 6:26 PM

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