What makes the security light come on 99 Oldsmobile Intrigue?

In a 1999 Oldsmobile Intrigue, the security light can come on for several reasons, primarily related to the vehicle's anti-theft system. It may activate if the key is not recognized by the ignition system, if there is a fault in the security system, or if the vehicle's battery is weak or disconnected. Additionally, issues with the ignition switch or wiring can also trigger the light. If the light remains on, it may indicate a need for troubleshooting or reprogramming of the key or security system.