2003 Buick Park Avenue Owner's Manual - Page 72

-Keys Leaving children in a vehicle with the ignition key is dangerous for many reasons. A child or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. Don't leave the keys in a vehicle with children. I Your vehicle has a two-key system. One key is the master and the other is a valet key. 2-3