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The security light on a 2008 Chevy Colorado can illuminate due to several reasons, primarily related to the vehicle's anti-theft system. Common causes include a malfunctioning key or key fob, issues with the ignition system, or problems with the vehicle's immobilizer. If the light is on continuously, it may indicate that the system is not recognizing the key, potentially requiring reprogramming or replacement of the key. Additionally, a fault in the vehicle's wiring or sensors could trigger the security light.

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1w ago

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