How do you replace the interlock solenoid in a Cadillac sts 2006?

To replace the interlock solenoid in a 2006 Cadillac STS, first disconnect the negative battery cable for safety. Remove the center console by unscrewing the necessary bolts and gently lifting it out. Locate the interlock solenoid, disconnect its electrical connector, and remove any mounting screws. Install the new solenoid by reversing the steps, ensuring all connections are secure before reassembling the console and reconnecting the battery.