How to Reset the Passlock System on a 2000 Silveradoby David Clair
The 2000 Chevrolet Silverado is equipped with the General Motors Passlock theft-deterrent security system. The system disables fuel to the ignition if a valid key is not used when attempting to start the engine. If the Passlock system is activated, the Silverado will not be able to be started until the system is reset. When the system is activated, a "Security" message appears on the instrument panel.
Insert the key into the ignition. Attempt to start the engine. If the Passlock system identifies the key as unauthorized, the engine stalls.
Leave the ignition switch in the "Run" position as the "Security" light blinks on and off for approximately 10 minutes.
Turn the ignition switch clockwise to start the engine immediately after the "Security" light stops flashing. The Passlock system resets and the engine will start.
- "Chevrolet Silverado/GMC Sierra 1999 thru 2006 Haynes Repair Manual"; Haynes; 2008
David Clair began writing for websites in 2001, creating online marketing content for business owners. He has written for Internet companies including eBay and creates training materials for an online education company. Clair is studying technical writing and pursuing an Associate of Arts in information technology from the University of Phoenix.