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Also sold under the GMC Sierra and VIA Vtrux names, available in the US, Canada, Mexico and other countries around the world.

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replaced the ignition lock...security light only comes on when I am tr

I replace the ignition lock on my 2004 Chevy Silverado becouse of an issue with the old one getting locked into the start position and battery had gone dead. Ounce it was replace it the security light only comes on when I am trying to start it but then it goes back off when I stop. When I tried to reprogram the new keys the security light only comes on when the key is turned on and only for about 20 to 40 sec. And then it going off. I have tried to reprogram the new key 3 times now with turning the key on and waiting 10m then turned of for different times between each cycle of the 10m key on. The first time I did key off and key right back on. The second time I waiting 5sec between each key on and the third time I did 10 sec. Between key on cycle and I am still not getting any kind of engine cranking just the security light comes on.

Can someone please me out on what it is that I am doing wrong with reprogramming the new keys

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Does your Silverado use Passlock security (no rfid chip in the key)? If yes, the Passlock three wire sensor detects ignition lock rotation and the embedded resistor in the ignition switch, sending signals to the body control module for security checking. In general, there are four modes of security indications; on, off, blinking, flashing. Normal indication after turning on ignition is security indicator is lit with all other indicators then turns off for normal starting. Passlock does not prevent starter operation when security flashes (theft detected) but does disable either fuel pump or injectors to prevent engine running. When security is on, Passlock failed internal self tests, disables itself to allow starting and driving with no antitheft protection.

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Carl Nickell sonsuza kadar minnettar olacak.
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