Shift Lock Control
WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
A/T shift lock control prevents shifting out of Park when ignition is on. The driver must press the brake pedal before moving the shift lever out of Park.