Take the key out of the ignition and wait 10-15 minutes then try again. Also try using a spare key, yours may be worn. If all else fails you may have to replace the ignition switch.
disconnet theft sistem on Chevy cavalier? Sorry....you really can't. You have to reset it.
Need to go to a GM Dealer . With all you paper work they can get it for you.
reset theft-deterrent systems on 2007 chevy avalanche
Leave the key in the ignition and let the anti-theft light flash. Let the key in for about ten minutes, and when the light stops flashing, the system is reset.
Reset anti theft system
There is no way to disable the factory anti-theft on a Chevy Blazer. Any disconnection of factory installed products voids the warranty on various components on the vehicle.
Put your Chevy Cavalier in neutral and then crank it once without starting the car. This will turn on the electrical system and you need to allow it to sit like that for several minutes for everything to reset itself.
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how do you reset the anti-theft system on a 1999 Ford windstar
To reset the security system on a 2000 Chevy Blazer, first ensure the vehicle is in the "Off" position. Then, insert the key into the ignition and turn it to the "On" position without starting the engine, and leave it in this position for about 10 minutes until the security light turns off. Next, turn the key back to the "Off" position for a few seconds, and then start the vehicle. If the issue persists, you may need to consult a professional for further assistance.