Ignition Can/Cannot Be Turned Off with Transmission in Any Gear
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Ignition Can/Cannot Be Turned Off With Transmission In Any Gear (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Ignition Can/Cannot Be Turned Off With Transmission In Any Gear (2 Of 2)