Column Shift Models
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1987 Pontiac Grand Prix, 1987 Pontiac Firebird, 1987 Pontiac 1000, 1987 Oldsmobile Cutlass, and 1987 Oldsmobile Custom Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Column shift models use a mechanical interference type neutral start system. A wedge-shaped finger, attached to the ignition switch actuator rod, blocks movement of switch to "START" position in all shift positions except "N" or "P".