Just found this info also
The center console shifter will affect whether you can get key release so check that out too. Associated with the BTSI (brake transmission shift interlock). First it has to be in PARK. With ignition to ON, foot on brake pedal and shifter in PARK what happens when you hit the button on the top of the shifter knob. You should hear the key release solenoid at the steering column click/clunk. If it does that then you could have a bad key release solenoid or even a bad key cylinder. If it doesn't do that then the issue is back at the shifter assembly.
