Question about 2002 Chevrolet Silverado 2500HD

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I have a 2002 chevy 2500 hd and the security light is on

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If the owners manual doesn't tell you the procedures to deactivate the anti-theft module, you might have to call the GM dealership and ask the service department how to deactivate the anti-theft module. I think it's key "ON" key "OFF" key "ON" key "OFF" key "ON" and then wait for 20 minutes then try to start the engine. Good luck, Gary

Posted on Jul 27, 2010

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Posted on Jan 02, 2017

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